AI4AVSummary
Aurora DTX series DSP matrix mixers (DTX-44D / DTX-88D / DTX-1616D / DTX-3232D / DTX-6464D) controlled via the Dash binary protocol over RS-232/RS-485 serial or UDP. Two protocol versions: V1 (fixed 12-byte messages, single channel/module) and V2 (variable-length, multi-channel). Supports full DSP parameter set/get, preset recall, matrix routing, GPIO, and serial/UDP bridging.
Transport
# Source (Appendix C): default baud 115200, 8 bits, 1 stop bit, no parity; UDP default port 50000.
# UART settings (baud/data/stop/parity) are user-configurable per device; defaults below.
protocols:
- serial
- udp
serial:
baud_rate: 115200
data_bits: 8
parity: none
stop_bits: 1
flow_control: null # UNRESOLVED: flow control not stated in source
addressing:
# UDP control port (default 50000). Factory-reset hex is sent to a separate port 6001.
port: 50000
auth:
# Source: "UDP control is not affected by User Admin settings." User Admin only gates Dash
# software login. Appendix C describes external RS-232/UDP control without a login procedure.
type: none # inferred: no auth procedure in source for external control
Traits
- queryable # inferred: Parameter GET (0x22) message type documented with response examples
- levelable # inferred: gain/volume/level parameter types documented across modules
- routable # inferred: Matrix Point (0x00A6) routing documented
Actions
# ============================================================================
# PROTOCOL FRAMING (applies to every action below)
#
# V1 header (12 bytes fixed):
# b0=0xB3 b1=MsgType b2=Checksum b3=Version(0x00 for V1)
# b4..b11 = payload (treated as little-endian 16-bit WORDs: lower byte = LSB)
#
# MsgType: 0x21=ParamSET 0x22=ParamGET 0x13=PresetSET 0x74=OtherControls
#
# Checksum (b2): set b2=0x00, sum b0..b11, take the LSB (low 8 bits), put in b2.
#
# V2 header (variable):
# b0=0xB3 b1=MsgType b2=Length b3=Version(0x01 for V2) b4.. = Data
#
# Response messages set the Version byte: V1 response b3=0xE0, V2 response b3=0xE1.
# RS-232 inter-message interval must be > 100ms.
# Every "{checksum}" placeholder below = LSB(sum of all bytes with checksum byte held at 0x00).
# ============================================================================
# ----------------------------------------------------------------------------
# Module: Input Source (0x012B) - applies to input channels 1-32 (zero-based 0-31)
# ----------------------------------------------------------------------------
- id: input_gain_set
label: Input Channel Gain Set
kind: action
command: "B3 21 {checksum} 00 2B 01 01 00 {ch_l} {ch_h} {gain_l} {gain_h}"
params:
- name: channel
type: integer
description: "Zero-based input channel (0-31 = Ch1-Ch32)"
- name: gain
type: number
description: "Signed Integer/100, -72.0 to +12.0 dB"
notes: "Example (Input Ch4 = -4.50dB): B3 21 40 00 2B 01 01 00 03 00 3E FE"
- id: input_mute_set
label: Input Channel Mute Set
kind: action
command: "B3 21 {checksum} 00 2B 01 02 00 {ch_l} {ch_h} {mute_l} {mute_h}"
params:
- name: channel
type: integer
description: "Zero-based input channel (0-31)"
- name: mute
type: integer
description: "0 = Off, 1 = On"
- id: input_sensitivity_set
label: Input Channel Sensitivity Set
kind: action
command: "B3 21 {checksum} 00 2B 01 03 00 00 00 {sens_l} {sens_h}"
params:
- name: sensitivity
type: integer
description: "Integer Value * 3; 0 to 48 dB in 3 dB steps"
- id: input_phantom_power_set
label: Input Phantom Power Set
kind: action
command: "B3 21 {checksum} 00 2B 01 04 00 00 00 {power_l} {power_h}"
params:
- name: power
type: integer
description: "0 = Off, 1 = On"
- id: input_signal_generator_type_set
label: Input Signal Generator Type Set
kind: action
command: "B3 21 {checksum} 00 2B 01 05 00 00 00 {type_l} {type_h}"
params:
- name: type
type: integer
description: "0 = Off, 1 = Sine, 2 = White, 3 = Pink"
- id: input_signal_generator_frequency_set
label: Input Signal Generator Frequency Set
kind: action
command: "B3 21 {checksum} 00 2B 01 06 00 00 00 {freq_l} {freq_h}"
params:
- name: frequency
type: integer
description: "Integer Value of Hex; 20 to 20000 Hz"
- id: input_sine_wave_gain_set
label: Input Sine Wave Gain Set
kind: action
command: "B3 21 {checksum} 00 2B 01 07 00 00 00 {gain_l} {gain_h}"
params:
- name: gain
type: number
description: "Signed Integer/100, -72.0 to 0.0 dB"
- id: input_channel_name_set
label: Input Channel Name Set
kind: action
command: "B3 21 {checksum} 00 2B 01 08 00 {name_bytes}" # UNRESOLVED: source does not document the name byte layout (Param2 shown only as 0x00)
params: []
- id: input_phase_set
label: Input Phase Reverse Set
kind: action
command: "B3 21 {checksum} 00 2B 01 09 00 00 00 {phase_l} {phase_h}"
params:
- name: phase
type: integer
description: "Phase Reverse: 0 = Off, 1 = On"
- id: input_gain_nudge_set
label: Input Gain Nudge Set
kind: action
command: "B3 21 {checksum} 00 2B 01 0A 00 00 00 {inc_l} {inc_h}"
params:
- name: increment
type: number
description: "Signed Integer/100; -3, -2, -1, +1, +2 or +3 dB"
- id: input_link_set
label: Input Channel Link Set
kind: action
command: "B3 21 {checksum} 00 2B 01 0B 00 {lowch_l} {lowch_h} {link_l} {link_h}"
params:
- name: lowest_channel
type: integer
description: "Integer of lowest channel in link pair, 1 to 32 (NOT zero-based)"
- name: link
type: integer
description: "0 = Off, 1 = On"
- id: input_channel_level_set
label: Input Channel Level Set
kind: action
command: "B3 21 {checksum} 00 2B 01 0C 00 00 00 {level_l} {level_h}"
params:
- name: level
type: number
description: "Signed Integer/100, -72.0 to +12.0 dB"
# ----------------------------------------------------------------------------
# Module: System Control (0x0128)
# ----------------------------------------------------------------------------
- id: system_gain_set
label: System Gain Set
kind: action
command: "B3 21 {checksum} 00 28 01 01 00 00 00 00 00" # Param1=0x00, Param2=0x00 per source table
params: []
- id: system_mute_set
label: System Mute Set
kind: action
command: "B3 21 {checksum} 00 28 01 02 00 {mute_l} {mute_h} 00 00"
params:
- name: mute
type: integer
description: "0 = Off, 1 = On"
# ----------------------------------------------------------------------------
# Module: Output (0x0127) - output channels 1-32 (zero-based 0-31)
# ----------------------------------------------------------------------------
- id: output_gain_set
label: Output Channel Gain Set
kind: action
command: "B3 21 {checksum} 00 27 01 01 00 {ch_l} {ch_h} {gain_l} {gain_h}"
params:
- name: channel
type: integer
description: "Zero-based output channel (0-31 = Ch1-Ch32)"
- name: gain
type: number
description: "Signed Integer/100, -72.0 to +12.0 dB"
- id: output_mute_set
label: Output Channel Mute Set
kind: action
command: "B3 21 {checksum} 00 27 01 02 00 {ch_l} {ch_h} {mute_l} {mute_h}"
params:
- name: channel
type: integer
description: "Zero-based output channel (0-31)"
- name: mute
type: integer
description: "0 = Off, 1 = On"
- id: output_channel_name_set
label: Output Channel Name Set
kind: action
command: "B3 21 {checksum} 00 27 01 03 00 {name_bytes}" # UNRESOLVED: name byte layout not documented
params: []
- id: output_phase_set
label: Output Phase Reverse Set
kind: action
command: "B3 21 {checksum} 00 27 01 04 00 00 00 {phase_l} {phase_h}"
params:
- name: phase
type: integer
description: "0 = Off, 1 = On"
- id: output_sensitivity_set
label: Output Channel Sensitivity Set
kind: action
command: "B3 21 {checksum} 00 27 01 05 00 00 00 {sens_l} {sens_h}"
params:
- name: sensitivity
type: integer
description: "Integer Value * 3; 0 to 48 dB in 3 dB steps"
- id: output_gain_nudge_set
label: Output Gain Nudge Set
kind: action
command: "B3 21 {checksum} 00 27 01 06 00 00 00 {inc_l} {inc_h}"
params:
- name: increment
type: number
description: "Signed Integer/100; -3, -2, -1, +1, +2 or +3 dB"
- id: output_link_set
label: Output Channel Link Set
kind: action
command: "B3 21 {checksum} 00 27 01 07 00 {lowch_l} {lowch_h} {link_l} {link_h}"
params:
- name: lowest_channel
type: integer
description: "Integer of lowest channel in link pair, 1 to 32 (NOT zero-based)"
- name: link
type: integer
description: "0 = Off, 1 = On"
- id: output_channel_level_set
label: Output Channel Level Set
kind: action
command: "B3 21 {checksum} 00 27 01 08 00 00 00 {level_l} {level_h}"
params:
- name: level
type: number
description: "Signed Integer/100, -72.0 to +12.0 dB"
# ----------------------------------------------------------------------------
# Module: Matrix (0x00A6)
# Param1 = channels: LSB input channel, MSB output channel (zero-based).
# In ch 32=AutoMix, 33=USB, 34=AEC, 35=ANS. Out ch 32=USB.
# ----------------------------------------------------------------------------
- id: matrix_point_set
label: Matrix Point Set
kind: action
command: "B3 21 {checksum} 00 A6 00 01 00 {in_ch} {out_ch} {active_l} {active_h}"
params:
- name: input_channel
type: integer
description: "Zero-based input channel (0-35 special)"
- name: output_channel
type: integer
description: "Zero-based output channel (0-32 special)"
- name: active
type: integer
description: "0 = Off, 1 = On"
notes: "Example (clear matrix pt In20->USB Out): B3 21 AF 00 A6 00 01 00 14 20 00 00"
- id: matrix_point_gain_set
label: Matrix Point Gain Set
kind: action
command: "B3 21 {checksum} 00 A6 00 02 00 {in_ch} {out_ch} {gain_l} {gain_h}"
params:
- name: input_channel
type: integer
- name: output_channel
type: integer
- name: gain
type: number
description: "Signed Integer/100, -72.0 to +12.0 dB"
# ----------------------------------------------------------------------------
# Module: Input Expander (CH1=0x0001 .. CH32=0x0020)
# ----------------------------------------------------------------------------
- id: input_expander_threshold_set
label: Input Expander Threshold Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 02 00 {thr_l} {thr_h} 00 00"
params:
- name: channel
type: integer
description: "Sets Module ID 0x0001..0x0020 (ch1=0x0001..ch32=0x0020)"
- name: threshold
type: number
description: "Signed Integer/100, -72.0 to 0.0 dB"
- id: input_expander_ratio_set
label: Input Expander Ratio Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 03 00 {ratio_l} {ratio_h} 00 00"
params:
- name: channel
type: integer
- name: ratio
type: number
description: "Signed Integer/100, 1.00 to 20.00"
- id: input_expander_attack_set
label: Input Expander Attack Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 04 00 {atk_l} {atk_h} 00 00"
params:
- name: channel
type: integer
- name: attack
type: integer
description: "Signed Integer, 1 to 500 ms"
- id: input_expander_release_set
label: Input Expander Release Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 05 00 {rel_l} {rel_h} 00 00"
params:
- name: channel
type: integer
- name: release
type: integer
description: "Signed Integer, 1 to 10000 ms"
# ----------------------------------------------------------------------------
# Module: Input Compressor (CH1=0x0021 .. CH32=0x0040)
# ----------------------------------------------------------------------------
- id: input_compressor_threshold_set
label: Input Compressor Threshold Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 02 00 {thr_l} {thr_h} 00 00"
params:
- name: channel
type: integer
description: "Module ID 0x0021..0x0040"
- name: threshold
type: number
description: "Signed Integer/100, -48.0 to 0.0 dB"
- id: input_compressor_ratio_set
label: Input Compressor Ratio Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 03 00 {ratio_l} {ratio_h} 00 00"
params:
- name: channel
type: integer
- name: ratio
type: number
description: "Signed Integer/100, 1.00 to 20.00"
notes: "Example (In Ch24 ratio 4.8): B3 21 F0 00 38 00 03 00 E0 01 00 00"
- id: input_compressor_attack_set
label: Input Compressor Attack Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 04 00 {atk_l} {atk_h} 00 00"
params:
- name: channel
type: integer
- name: attack
type: integer
description: "1 to 500 ms"
- id: input_compressor_release_set
label: Input Compressor Release Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 05 00 {rel_l} {rel_h} 00 00"
params:
- name: channel
type: integer
- name: release
type: integer
description: "1 to 10000 ms"
- id: input_compressor_gain_compensation_set
label: Input Compressor Gain Compensation Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 06 00 {gc_l} {gc_h} 00 00"
params:
- name: channel
type: integer
- name: gain_compensation
type: number
description: "Signed Integer/100, -72.0 to +6.0 dB"
notes: "Source labels Param1 'Release' (typo); field is Gain Compensation."
# ----------------------------------------------------------------------------
# Module: Input AutoGain (CH1=0x0041 .. CH32=0x0060)
# ----------------------------------------------------------------------------
- id: input_autogain_threshold_set
label: Input AutoGain Threshold Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 02 00 {thr_l} {thr_h} 00 00"
params:
- name: channel
type: integer
description: "Module ID 0x0041..0x0060"
- name: threshold
type: number
description: "Signed Integer/100, -72.0 to -20.0 dB"
- id: input_autogain_target_level_set
label: Input AutoGain Target Level Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 03 00 {tl_l} {tl_h} 00 00"
params:
- name: channel
type: integer
- name: target_level
type: number
description: "Signed Integer/100, -20.0 to 0.0 dB"
notes: "Source labels Param1 'Release' (typo); field is Target Level."
- id: input_autogain_ratio_set
label: Input AutoGain Ratio Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 04 00 {ratio_l} {ratio_h} 00 00"
params:
- name: channel
type: integer
- name: ratio
type: number
description: "Signed Integer/100, 1.00 to 20.00"
- id: input_autogain_attack_set
label: Input AutoGain Attack Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 05 00 {atk_l} {atk_h} 00 00"
params:
- name: channel
type: integer
- name: attack
type: integer
description: "1 to 500 ms"
- id: input_autogain_release_set
label: Input AutoGain Release Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 06 00 {rel_l} {rel_h} 00 00"
params:
- name: channel
type: integer
- name: release
type: integer
description: "1 to 10000 ms"
# ----------------------------------------------------------------------------
# Module: Input EQ (CH1=0x0061 .. CH32=0x0080) - 12 parametric bands (0-11)
# ----------------------------------------------------------------------------
- id: input_eq_band_enable_set
label: Input EQ Band Enable Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 02 00 {band_l} {band_h} {en_l} {en_h}"
params:
- name: channel
type: integer
description: "Module ID 0x0061..0x0080"
- name: band
type: integer
description: "Parametric: zero-based band 0-11. Graphic: Q (1=Wide,2=Normal,3=Narrow)"
- name: enable
type: integer
description: "0 = On, 1 = Off (note inverted logic)"
- id: input_eq_frequency_set
label: Input EQ Frequency Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 03 00 {band_l} {band_h} {freq_l} {freq_h}"
params:
- name: channel
type: integer
- name: band
type: integer
- name: frequency
type: number
description: "Parametric: Signed Integer, 20-20000 Hz. Graphic: Signed Integer/100 gain -24.0..+12.0 dB"
- id: input_eq_gain_set
label: Input EQ Gain Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 04 00 {band_l} {band_h} {gain_l} {gain_h}"
params:
- name: channel
type: integer
- name: band
type: integer
- name: gain
type: number
description: "Signed Integer/100, -24.0 to +18.0 dB"
- id: input_eq_q_value_set
label: Input EQ Q Value Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 05 00 {band_l} {band_h} {q_l} {q_h}"
params:
- name: channel
type: integer
- name: band
type: integer
- name: q
type: number
description: "Signed Integer/100, 0.02 to 50.0"
- id: input_eq_type_set
label: Input EQ Band Type Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 06 00 {band_l} {band_h} {type_l} {type_h}"
params:
- name: channel
type: integer
- name: band
type: integer
description: "Zero-based band 0-30 (Bands 1-31)"
- name: type
type: integer
description: "0=LowPass,1=HighPass,6=Parametric,7=LowShelf,8=HighShelf (2-5 reserved)"
# ----------------------------------------------------------------------------
# Module: Input Feedback Suppression (CH1=0x0081 .. CH32=0x00A0)
# Storage slots 0-7.
# ----------------------------------------------------------------------------
- id: input_fbs_point_frequency_set
label: Input FBS Feedback Point Frequency Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 02 00 {slot_l} {slot_h} {freq_l} {freq_h}"
params:
- name: channel
type: integer
description: "Module ID 0x0081..0x00A0"
- name: slot
type: integer
description: "Feedback storage slot, zero-based 0-7"
- name: frequency
type: integer
description: "Signed Integer, 20 to 20000 Hz"
- id: input_fbs_point_gain_set
label: Input FBS Feedback Point Gain Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 03 00 {slot_l} {slot_h} {gain_l} {gain_h}"
params:
- name: channel
type: integer
- name: slot
type: integer
- name: gain
type: number
description: "Signed Integer/100, -24.0 to 0.0 dB"
- id: input_fbs_octave_set
label: Input FBS Octave Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 04 00 {oct_l} {oct_h} 00 00"
params:
- name: channel
type: integer
- name: octave
type: integer
description: "0x000A = 1/10th, 0x0014 = 1/5th"
- id: input_fbs_type_set
label: Input FBS Filter Type Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 05 00 {slot_l} {slot_h} {type_l} {type_h}"
params:
- name: channel
type: integer
- name: slot
type: integer
- name: type
type: integer
description: "0 = Dynamic, 1 = Manual"
- id: input_fbs_step_set
label: Input FBS Step Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 06 00 {step_l} {step_h} 00 00"
params:
- name: channel
type: integer
- name: step
type: number
description: "Signed Integer/100, 0.5 to 3.0"
notes: "Source labels Param1 'Release'; field is Step."
- id: input_fbs_panic_limit_threshold_set
label: Input FBS Panic Limit Threshold Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 08 00 {thr_l} {thr_h} 00 00"
params:
- name: channel
type: integer
- name: threshold
type: number
description: "Signed Integer/100, -36.0 to 0.0 dB"
- id: input_fbs_filter_depth_set
label: Input FBS Filter Depth Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 09 00 {depth_l} {depth_h} 00 00"
params:
- name: channel
type: integer
- name: depth
type: number
description: "Signed Integer/100, 1.0 to 24.0"
- id: input_fbs_feedback_threshold_set
label: Input FBS Feedback Threshold Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 0A 00 {thr_l} {thr_h} 00 00"
params:
- name: channel
type: integer
- name: threshold
type: number
description: "Signed Integer/100, -96.0 to -24.0 dB"
# ----------------------------------------------------------------------------
# Module: Echo Cancellation (0x00A3)
# ----------------------------------------------------------------------------
- id: aec_nonlinear_processor_set
label: AEC Non-Linear Processor Set
kind: action
command: "B3 21 {checksum} 00 A3 00 02 00 {nlp_l} {nlp_h} 00 00"
params:
- name: nlp
type: integer
description: "0 = Conservative, 1 = Moderate, 2 = Aggressive"
# ----------------------------------------------------------------------------
# Module: Echo Cancellation Source (0x00A2)
# ----------------------------------------------------------------------------
- id: aec_source_set
label: AEC Source Select Set
kind: action
command: "B3 21 {checksum} 00 A2 00 01 00 {ch_l} {ch_h} {sel_l} {sel_h}"
params:
- name: channel
type: integer
description: "Local: zero-based, 0x0020=AutoMixer; Remote: 0x0100 && zero-based ch, 0x0121=USB"
- name: select
type: integer
description: "0 = Off, 1 = On"
# ----------------------------------------------------------------------------
# Module: AutoMix (0x00A1)
# ----------------------------------------------------------------------------
- id: automix_total_mute_set
label: AutoMix Total Mute Set
kind: action
command: "B3 21 {checksum} 00 A1 00 01 00 {mute_l} {mute_h} 00 00"
params:
- name: mute
type: integer
description: "0 = Off, 1 = On"
- id: automix_total_gain_set
label: AutoMix Total Gain Set
kind: action
command: "B3 21 {checksum} 00 A1 00 02 00 {gain_l} {gain_h} 00 00"
params:
- name: gain
type: number
description: "Signed Integer/100, -72.0 to +12.0 dB"
- id: automix_slope_set
label: AutoMix Slope Set
kind: action
command: "B3 21 {checksum} 00 A1 00 03 00 {slope_l} {slope_h} 00 00"
params:
- name: slope
type: number
description: "Signed Integer/100, 1.0 to 3.0"
- id: automix_response_time_set
label: AutoMix Response Time Set
kind: action
command: "B3 21 {checksum} 00 A1 00 04 00 {resp_l} {resp_h} 00 00"
params:
- name: response
type: integer
description: "Signed Integer, 1 to 5000 ms"
- id: automix_channel_enable_set
label: AutoMix Channel Enable Set
kind: action
command: "B3 21 {checksum} 00 A1 00 05 00 {ch_l} {ch_h} {act_l} {act_h}"
params:
- name: channel
type: integer
- name: activate
type: integer
description: "0 = Off, 1 = On"
- id: automix_channel_mute_set
label: AutoMix Channel Mute Set
kind: action
command: "B3 21 {checksum} 00 A1 00 06 00 {ch_l} {ch_h} {mute_l} {mute_h}"
params:
- name: channel
type: integer
- name: mute
type: integer
description: "0 = Off, 1 = On"
- id: automix_channel_gain_set
label: AutoMix Channel Gain Set
kind: action
command: "B3 21 {checksum} 00 A1 00 07 00 {ch_l} {ch_h} {gain_l} {gain_h}"
params:
- name: channel
type: integer
- name: gain
type: number
description: "Signed Integer/100, -72.0 to +12.0 dB"
- id: automix_priority_set
label: AutoMix Channel Priority Set
kind: action
command: "B3 21 {checksum} 00 A1 00 08 00 {ch_l} {ch_h} {pri_l} {pri_h}"
params:
- name: channel
type: integer
- name: priority
type: integer
description: "Signed Integer, 1 to 10"
- id: automix_enable_set
label: AutoMix Enable Set
kind: action
command: "B3 21 {checksum} 00 A1 00 09 00 {en_l} {en_h} 00 00" # UNRESOLVED: source table for 0x0009 lists no parameter detail
params: []
# ----------------------------------------------------------------------------
# Module: Noise Suppression (0x00A5)
# ----------------------------------------------------------------------------
- id: noise_suppression_level_set
label: Noise Suppression Level Set
kind: action
command: "B3 21 {checksum} 00 A5 00 02 00 {lvl_l} {lvl_h} 00 00"
params:
- name: level
type: integer
description: "0 = 6dB, 1 = 10dB, 2 = 15dB, 3 = 18dB"
# ----------------------------------------------------------------------------
# Module: Noise Suppression Source (0x00A4)
# ----------------------------------------------------------------------------
- id: noise_suppression_source_set
label: Noise Suppression Source Select Set
kind: action
command: "B3 21 {checksum} 00 A4 00 01 00 {ch_l} {ch_h} {sel_l} {sel_h}"
params:
- name: channel
type: integer
description: "Local zero-based; 0x0020=AutoMixer, 0x0021=USB, 0x0022=AEC"
- name: select
type: integer
description: "0 = Off, 1 = On"
# ----------------------------------------------------------------------------
# Module: Output Filter (CH1=0x00A7 .. CH32=0x00C6) - HP + LP per channel
# ----------------------------------------------------------------------------
- id: output_filter_hp_enable_set
label: Output Filter High Pass Enable Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 01 00 {en_l} {en_h} 00 00" # UNRESOLVED: enable value mapping not documented in source table
params:
- name: channel
type: integer
description: "Module ID 0x00A7..0x00C6"
- id: output_filter_hp_type_set
label: Output Filter High Pass Type Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 02 00 {type_l} {type_h} 00 00"
params:
- name: channel
type: integer
- name: type
type: integer
description: "0 = Bessel, 1 = Butterworth, 2 = Linkwitz Riley"
- id: output_filter_hp_slope_set
label: Output Filter High Pass Slope Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 03 00 {slope_l} {slope_h} 00 00"
params:
- name: channel
type: integer
- name: slope
type: integer
description: "6,12,18,24,32,36,42,48 dB/Octave"
- id: output_filter_hp_frequency_set
label: Output Filter High Pass Frequency Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 04 00 {freq_l} {freq_h} 00 00"
params:
- name: channel
type: integer
- name: frequency
type: integer
description: "Signed Integer, 20 to 20000 Hz"
- id: output_filter_hp_gain_set
label: Output Filter High Pass Gain Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 05 00 {gain_l} {gain_h} 00 00"
params:
- name: channel
type: integer
- name: gain
type: number
description: "Signed Integer/100, -15.0 to +15.0 dB"
- id: output_filter_lp_enable_set
label: Output Filter Low Pass Enable Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 06 00 {en_l} {en_h} 00 00" # UNRESOLVED: enable value mapping not documented
params:
- name: channel
type: integer
- id: output_filter_lp_type_set
label: Output Filter Low Pass Type Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 07 00 {type_l} {type_h} 00 00"
params:
- name: channel
type: integer
- name: type
type: integer
description: "0 = Bessel, 1 = Butterworth, 2 = Linkwitz Riley"
- id: output_filter_lp_slope_set
label: Output Filter Low Pass Slope Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 08 00 {slope_l} {slope_h} 00 00"
params:
- name: channel
type: integer
- name: slope
type: integer
description: "6,12,18,24,32,36,42,48 dB/Octave"
- id: output_filter_lp_frequency_set
label: Output Filter Low Pass Frequency Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 09 00 {freq_l} {freq_h} 00 00"
params:
- name: channel
type: integer
- name: frequency
type: integer
description: "Signed Integer, 20 to 20000 Hz"
- id: output_filter_lp_gain_set
label: Output Filter Low Pass Gain Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 0A 00 {gain_l} {gain_h} 00 00"
params:
- name: channel
type: integer
- name: gain
type: number
description: "Signed Integer/100, -15.0 to +15.0 dB"
# ----------------------------------------------------------------------------
# Module: Output Delay (CH1=0x00E7 .. CH32=0x0106) - ms + us add together
# ----------------------------------------------------------------------------
- id: output_delay_milliseconds_set
label: Output Delay Milliseconds Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 02 00 {ms_l} {ms_h} 00 00"
params:
- name: channel
type: integer
description: "Module ID 0x00E7..0x0106"
- name: milliseconds
type: integer
description: "Signed Integer (add to Microseconds), 0 to 1200 ms"
- id: output_delay_microseconds_set
label: Output Delay Microseconds Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 03 00 {us_l} {us_h} 00 00"
params:
- name: channel
type: integer
- name: microseconds
type: number
description: "Signed Integer/100 (add to Milliseconds), 0 to 999 us"
# ----------------------------------------------------------------------------
# Module: Output EQ (CH1=0x00C7 .. CH32=0x00E6)
# ----------------------------------------------------------------------------
- id: output_eq_band_enable_set
label: Output EQ Band Enable Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 02 00 {band_l} {band_h} {en_l} {en_h}"
params:
- name: channel
type: integer
description: "Module ID 0x00C7..0x00E6"
- name: band
type: integer
description: "Parametric zero-based 0-11; Graphic Q 1/2/3"
- name: enable
type: integer
description: "0 = On, 1 = Off"
- id: output_eq_frequency_set
label: Output EQ Frequency Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 03 00 {band_l} {band_h} {freq_l} {freq_h}"
params:
- name: channel
type: integer
- name: band
type: integer
- name: frequency
type: number
description: "Parametric Signed Integer 20-20000 Hz; Graphic gain -24.0..+12.0 dB"
- id: output_eq_gain_set
label: Output EQ Gain Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 04 00 {band_l} {band_h} {gain_l} {gain_h}"
params:
- name: channel
type: integer
- name: band
type: integer
- name: gain
type: number
description: "Signed Integer/100, -24.0 to +18.0 dB"
- id: output_eq_q_value_set
label: Output EQ Q Value Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 05 00 {band_l} {band_h} {q_l} {q_h}"
params:
- name: channel
type: integer
- name: band
type: integer
- name: q
type: number
description: "Signed Integer/100, 0.02 to 50.0"
- id: output_eq_type_set
label: Output EQ Band Type Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 06 00 {band_l} {band_h} {type_l} {type_h}"
params:
- name: channel
type: integer
- name: band
type: integer
description: "Zero-based 0-30 (Bands 1-31)"
- name: type
type: integer
description: "0=LowPass,1=HighPass,6=Parametric,7=LowShelf,8=HighShelf (2-5 reserved)"
# ----------------------------------------------------------------------------
# Module: Output Limiter (CH1=0x0107 .. CH32=0x0126)
# ----------------------------------------------------------------------------
- id: output_limiter_threshold_set
label: Output Limiter Threshold Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 02 00 {thr_l} {thr_h} 00 00"
params:
- name: channel
type: integer
description: "Module ID 0x0107..0x0126"
- name: threshold
type: number
description: "Signed Integer/100, -72.0 to 0.0 dB"
- id: output_limiter_release_set
label: Output Limiter Release Set
kind: action
command: "B3 21 {checksum} 00 {mid_l} {mid_h} 05 00 {rel_l} {rel_h} 00 00"
params:
- name: channel
type: integer
- name: release
type: integer
description: "Signed Integer, 1 to 10000 ms"
# ============================================================================
# Preset operations
# ============================================================================
- id: preset_recall_v1
label: Preset Recall (V1)
kind: action
command: "B3 13 {checksum} 00 {preset} 00 00 00 00 00 00 00"
params:
- name: preset
type: integer
description: "Zero-based preset number (Preset 1 = 0x00)"
notes: "Example (recall preset 5): B3 13 F4 00 04 00 00 00 00 00 00 00"
- id: preset_recall_v2
label: Preset Recall (V2)
kind: action
command: "B3 13 01 01 {preset}"
params:
- name: preset
type: integer
description: "Zero-based preset number (0x00-0x0F)"
notes: "Example (recall preset 2): B3 13 01 01 01. Length byte b2 always 0x01, version b3=0x01."
# ============================================================================
# Parameter GET (query) - V1 and V2. Requires Control Center Response ON.
# ============================================================================
- id: parameter_get_v1
label: Parameter Get (V1)
kind: query
command: "B3 22 {checksum} 00 {mid_l} {mid_h} {pt_l} {pt_h} {p1_l} {p1_h} 00 00"
params:
- name: module_id
type: integer
description: "Target Module ID (e.g. 0x012B Input Source)"
- name: parameter_type
type: integer
description: "Target Parameter Type"
- name: channel
type: integer
description: "Channel/bank selector (Param1) when applicable; else 0x0000"
notes: "Response: same GET message with b3=0xE0 and params filled. Example (GET mute In Ch14): B3 22 10 00 2B 01 02 00 0D 00 00 00 -> B3 22 10 E0 2B 01 02 00 0D 00 01 00"
- id: parameter_get_v2
label: Parameter Get Multi-Channel (V2)
kind: query
command: "B3 22 {length} 01 {inout} {start} {end} {pt} {value_placeholders}"
params:
- name: input_output
type: integer
description: "0x02=Input, 0x01=Output"
- name: start_channel
type: integer
description: "Zero-based start channel"
- name: end_channel
type: integer
description: "Zero-based end channel"
- name: parameter_type
type: integer
- name: value_placeholders
type: string
description: "Zeroed bytes, 2 per channel; length b2 = (end-start+1)*2"
notes: "Response b3=0xE1. Example (GET gain In 1-8): B3 22 10 01 02 00 07 01 00 00 00 00 00 00 00 00 00 00 00 00 00 -> B3 22 10 E1 02 00 07 01 96 F6 32 02 3D FD 0B 02 03 FC 32 02 B5 FB 75 02"
- id: parameter_set_v2_multichannel
label: Parameter Set Multi-Channel (V2)
kind: action
command: "B3 21 {length} 01 {inout} {start} {end} {pt} {values}"
params:
- name: input_output
type: integer
description: "0x02=Input, 0x01=Output"
- name: start_channel
type: integer
- name: end_channel
type: integer
- name: parameter_type
type: integer
description: "Use Input Source (0x012B) params for inputs, Output (0x0127) for outputs"
- name: values
type: string
description: "2 bytes per channel, only Parameter 2 values"
notes: "Example (SET gain In 1-8 = -6.0dB): B3 21 10 01 02 00 07 01 AB FD AB FD AB FD AB FD AB FD AB FD AB FD AB FD"
# ============================================================================
# Other Controls (MsgType 0x74, V2)
# ============================================================================
- id: control_center_response_set
label: Control Center Response Set
kind: action
command: "B3 74 08 01 04 00 00 00 {switch}"
params:
- name: switch
type: integer
description: "0x00 = OFF, 0x01 = ON. MUST be ON for GET responses."
notes: "Enable command verbatim: B3 74 08 01 04 00 00 00 01. Send at least once on controller startup."
- id: gpio_set
label: GPIO Output Set
kind: action
command: "B3 74 08 01 01 04 00 00 01 {start} {end} {value}"
params:
- name: start_gpio
type: integer
description: "Zero-based start pin (0-7)"
- name: end_gpio
type: integer
description: "Zero-based end pin"
- name: value
type: integer
description: "Bit-mapped ch1=lsb..ch8=msb; 0=Low,1=High"
notes: "Example (GPIO 1-8 High): B3 74 08 01 01 04 00 00 01 00 07 FF. Example (5,7 High; 6,8 Low): B3 74 08 01 01 04 00 00 01 04 07 50"
- id: gpio_get
label: GPIO Input Get
kind: query
command: "B3 74 08 01 01 04 00 00 00 {start} {end} 00"
params:
- name: start_gpio
type: integer
- name: end_gpio
type: integer
notes: "GPIO Dir=0x00 = Input GET. Example (GET all GPIO): B3 74 08 01 01 04 00 00 00 00 07 00"
- id: rs232_send
label: RS-232 Send
kind: action
command: "B3 74 {length} 01 02 {msg_len} 00 00 {message_hex}"
params:
- name: message
type: string
description: "ASCII message payload as hex bytes"
notes: "Example (output 'Hello, DSP.' from RS232): B3 74 10 01 02 00 00 00 48 65 6C 6C 6F A3 AC 44 53 50 2E 00"
- id: rs485_send
label: RS-485 Send
kind: action
command: "B3 74 {length} 01 03 {msg_len} 00 00 {message_hex}"
params:
- name: message
type: string
description: "ASCII message payload as hex bytes"
- id: device_info_query
label: Device Info Query
kind: query
command: "B3 74 14 01 05 14 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00"
params: []
notes: "Returns device name (b8-b23 ASCII) + AIn(b24), AOut(b25), DIn(b26), DOut(b27). Example resp: B3 74 14 E1 05 14 00 00 44 54 58 2D 31 36 31 36 44 00 00 00 00 00 00 00 10 10 10 10 (DTX-1616D, 16x16 analog, 16x16 Dante)"
- id: preset_reset
label: Preset Reset
kind: action
command: "B3 74 04 01 06 00 00 00"
params: []
notes: "Discards unsaved changes, reverts to current preset values."
- id: rs485_direction_set
label: RS-485 Direction Set
kind: action
command: "B3 74 {length} 01 07 00 00 00 {direction}" # UNRESOLVED: source shows b[8]-b[11] Direction but no full worked example
params:
- name: direction
type: integer
description: "0x01 = Input, 0x00 = Output"
- id: udp_forward
label: UDP Forward
kind: action
command: "B3 74 {length} 01 08 00 00 00 {ip_b8_b11} {port_l} {port_h} {datalen_l} {datalen_h} {data_hex}"
params:
- name: ip_address
type: string
description: "Destination IP, each octet one byte (b8..b11)"
- name: port
type: integer
description: "Destination UDP port (2-byte WORD, b12=LSB)"
- name: data
type: string
description: "UDP payload (ASCII -> hex)"
notes: "Example (forward 'HELLO, DSP!' to 192.168.0.99:7000): B3 74 18 01 08 00 00 00 C0 A8 00 63 58 1B 0C 00 48 65 6C 6C 6F 2C 20 44 53 50 21 00"
- id: debug_enable
label: Debug Enable
kind: action
command: "B3 74 {length} 01 09 00 00 00 {enable}" # UNRESOLVED: source Control Type table lists 0x09 DebugEnable but byte table header shows b4=0x07 (likely typo); Enable value 0x01=On,0x00=Off
params:
- name: enable
type: integer
description: "0x01 = Debugging On, 0x00 = Off (runtime log to serial port)"
- id: factory_reset
label: Factory Reset
kind: action
command: "{factory_reset_code}" # UNRESOLVED: reset hex code is device-specific, printed on a sticker affixed to the DTX, starts with 'A5'. Obtain from Aurora support if sticker missing.
params: []
notes: "Send factory-reset hex via UDP to port 6001 (NOT 50000). Requires firmware >= 2.1.210611."
- id: serial_to_udp_translation
label: Serial-to-UDP Translation (RS-232 inbound)
kind: action
command: "3A 50 44 55 {ip_b4_b7} {port_b8_b9} {datalen_b10} {reserved_b11} {data}"
params:
- name: ip_address
type: string
description: "Destination IP, 4 bytes b4-b7"
- name: port
type: integer
description: "UDP port b8-b9"
- name: data
type: string
description: "Payload, max 128 bytes"
notes: "Prefix ASCII 'UDP:' = 0x3A504455. When DTX receives serial msg starting with this prefix it forwards via LAN. Example ('HELLO DSP' to 192.168.1.22:50000): 3A 50 44 55 16 10 A8 C0 C3 50 09 00 50 53 44 20 4F 4C 4C 45 48"
Feedbacks
# Parameter GET responses (require Control Center Response ON).
# Response frames reuse the GET message shape with Version byte set: V1 -> b3=0xE0, V2 -> b3=0xE1.
- id: parameter_get_response
type: object
description: "Response to Parameter GET; payload carries current param values in Param1/Param2 bytes."
notes: "Example GET-mute response (In Ch14 muted): B3 22 10 E0 2B 01 02 00 0D 00 01 00"
- id: device_info_response
type: object
description: "Response to Device Info query: device name + analog/Dante channel counts."
notes: "Example: B3 74 14 E1 05 14 00 00 44 54 58 2D 31 36 31 36 44 00 00 00 00 00 00 00 10 10 10 10"
- id: gpio_input_state
type: integer
description: "GPIO input pin state returned in value byte (bit-mapped, ch1=lsb). 0=Low,1=High"
notes: "Value semantics: >2VDC=High, <0.3VDC=Low (per GPIO Input definition)."
# UNRESOLVED: source documents no unsolicited/asynchronous notification stream; all responses are replies to GET.
Variables
# All settable DSP parameters are exposed via the SET actions above (parameterized by channel/slot/band).
# This section reserves device-wide runtime variables not covered by a discrete action.
# UNRESOLVED: no additional standalone variable entries documented in source beyond the param tables.
Events
# UNRESOLVED: source documents no unsolicited event/notification messages. Device only replies to GET when Control Center Response is ON.
Macros
# UNRESOLVED: source documents no named multi-step command sequences.
Safety
confirmation_required_for: []
interlocks: []
# UNRESOLVED: source contains no explicit safety warnings, interlock procedures, or power-on
# sequencing requirements for the control protocol. GPIO output drive limit (100mA/pin, 500mA
# total across 8 pins) and input voltage limits are electrical ratings, not protocol interlocks.
Notes
- Two protocol versions: V1 = fixed 12-byte single-channel messages (default, preferred for automation). V2 = variable-length multi-channel/system messages. Version byte: V1 request
0x00, V2 request0x01, V1 response0xE0, V2 response0xE1. - Checksum: every message's b2 = LSB of the sum of all bytes with b2 held at
0x00. Must be recomputed for any parameterized value before transmission. - Little-endian WORDs: b[4]..b[11] are 16-bit WORDs (low byte = LSB, high byte = MSB). Matrix Point is the exception — b8/b9 are individual BYTEs (in channel, out channel).
- Value encodings: Boolean (0x0000/0x0001, note some Enable values invert), Integer, Zero-Based Integer (channel id), Signed Integer, Signed Integer/100 (decimals like gain).
- RS-232 timing: inter-message interval must be > 100ms for stable comms.
- Control Center Response must be ON (
B3 74 08 01 04 00 00 00 01) to receive any GET reply. Recommended to send once at controller startup. - RS-485 is available on the same serial connector (shared GND with RS-232); +12VDC aux power can drive a remote RS-485 panel. Direction is settable via
rs485_direction_set. - Dante vs analog channel numbering is model-dependent (see Channel Layout table); Dante channels follow analog in sequence.
- UDP factory reset targets port 6001 (separate from the 50000 control port) and needs a device-specific code from a physical sticker.
- Dash User Admin (username/password) gates only Dash software login; external UDP/RS-232 control is not authenticated.
Provenance
source_domains:
- ute.de
- files.avprosupply.com
source_urls:
- https://www.ute.de/images/downloads/handbuecher/user-manual_aurora_dtx-dash.pdf
- https://files.avprosupply.com/files/attachments/487392/aurora-multimedia-dtx-44d-manual.pdf
retrieved_at: 2026-07-01T05:22:28.926Z
last_checked_at: 2026-07-07T10:58:24.287Z
Verification Summary
verdict: verified
checked_at: 2026-07-07T10:58:24.287Z
matched_actions: 100
action_count: 100
confidence: medium
summary: "All 100 spec actions matched verbatim in the Aurora DTX Dash control protocol. Every message type, module ID, parameter type, and transport setting is documented in the source. (16 unresolved item(s) noted in Known Gaps.)"
Known Gaps
- "RS-485 transport details (separate from RS-232) not fully specified; flow_control not stated; auth behavior over RS-232 not explicitly stated (only UDP confirmed unaffected by User Admin)."
- "flow control not stated in source"
- "source does not document the name byte layout (Param2 shown only as 0x00)"
- "name byte layout not documented"
- "source table for 0x0009 lists no parameter detail"
- "enable value mapping not documented in source table"
- "enable value mapping not documented"
- "source shows b[8]-b[11] Direction but no full worked example"
- "source Control Type table lists 0x09 DebugEnable but byte table header shows b4=0x07 (likely typo); Enable value 0x01=On,0x00=Off"
- "reset hex code is device-specific, printed on a sticker affixed to the DTX, starts with 'A5'. Obtain from Aurora support if sticker missing."
- "source documents no unsolicited/asynchronous notification stream; all responses are replies to GET."
- "no additional standalone variable entries documented in source beyond the param tables."
- "source documents no unsolicited event/notification messages. Device only replies to GET when Control Center Response is ON."
- "source documents no named multi-step command sequences."
- "source contains no explicit safety warnings, interlock procedures, or power-on"
- "flow_control not stated. Channel-name SET byte layout undocumented. Output Filter HP/LP enable value mapping undocumented. AutoMix Enable (0x0009) parameter detail missing. RS-485 Direction and Debug worked examples incomplete/ambiguous (Debug table header shows b4=0x07, likely typo for 0x09). FBS Reserved (0x0007) is n/a. Module ID ranges assume contiguous 32-channel coverage per source statement. No firmware compatibility range stated."
From the AI4AV catalog (https://ai4av.net) · ODbL-1.0