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Pre-Gain

Manually adjustable pre-gain for microphone/line level adjustment is available for input signals up to 22dBV/24dBu. It is a digitally controlled analogue gain stage. Pre-Gain can be used with both Gain and AGC.

Parameter Name	Parameter Range	Parameter Definition
Pre-Gain	-6/0/34/40 dB	The Pre-Gain parameter offers a selection of four gain levels for the microphone level, line level, and hot signal source (e.g., DJ setup).

Gain

Gain is available for all input channels with a range of -35 and 35 dB for the LUNA series. It is also possible to adjust the input gain automatically.
Note: NWP series have -15 and 15dB of gain range.

Parameter Name	Parameter Range	Parameter Definition
Gain	+/-35 dB +/-15 dB	Input signal up to 22dBV/24dBu

Automatic Gain Control (AGC)

All inputs contain the possibility to enable Automatic Gain Control (AGC). This continuously adjusts the input gain, ensuring a constant output level while the input level varies. The gain adjustments are made in extremely small step adjustable sizes ensuring high-quality audio, even during gain changes.

Parameter Name	Parameter Range	Parameter Definition
Target (A)	-20 - 6 dB	The Target parameter specifies a signal's target level before entering the Matrix. Continuously, the signal matching the level specified by the target parameter will be attempted to adjust.
Max Gain (B)	0 - 30 dB	The Max Gain parameter specifies the maximum gain adjustment which can be achieved between the input level and the target level. This can be used to prevent excessive noise or microphone feedback when, for example, a microphone is not being used. Note that this setting may prevent the AGC from reaching the target level, but this behavior is desirable to achieve the best overall sound.
Hold (C)	0.1 - 60 second	The Hold parameter specifies the AGC hold time during which no action will be taken when the output level falls below the target output level. This is used to prevent the gain from modulating on low frequencies which may cause distortion. For line signals, it is recommended to specify a long hold time to prevent the AGC from adjusting the volume during quiet music passages.
Decay (D)	5 - 200 dB/sec	The Decay parameter specifies the time the AGC will take to increase the gain, raising the signal from the current level (below the target level) to the target level. A slow Decay setting can be used if a fixed output level should be maintained, while a fast Decay setting can be used to compress the dynamic range of speech.
Attack (E)	5 - 200 dB/sec	The Attack parameter specifies the reaction time in which the AGC starts attenuating after a sudden increase in input level above the target level. The attack time should be fast to avoid any distortion caused by clipping, but when the attack time is too fast, the AGC will overreact to short peaks, causing audible distortion.
Threshold (B)	-90 - 30 dB	The Threshold parameter specifies the level at which the noise gate will be enabled. When the level of the applied input signal is below the set threshold level, the noise gate will be enabled. This will cut off the signal, resulting in no noise on the outputs. To avoid unwanted noises (noise gate opening and closing rapidly) when the signal level is close to the threshold level, the noise gate function uses a time-out period in combination with hysteresis.
Gain Freeze	Selection	The Gain Freeze will freeze the reached gain level and keeps it fixed.
Gain Recovery	Selection	The Gain Recovery will recover the reached gain level back to 0dB.

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LP/HP filter (Input Filter & Output Filter)

Sound Processing

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2 bands of semi-parametric 2nd order high pass and low pass filters are available on each input channel and can be individually enabled and disabled. Frequency and Q-factor can be adjusted, and channels can be enabled individually. With cascading or combining the available filters, bandpass or 4th order high pass or low pass filters can be created.

Parameter Name	Parameter Range	Parameter Definition
Show Table	Enable/Disable	Opens a table showing the filters that can be applied.
Type	High Pass/Low pass	Opens a list of filters that can be selected.
High Pass	Selection	With a High-Pass filter, the frequencies below the crossover frequency will be suppressed.
Low Pass	Selection	With a Low-Pass filter, the frequencies above the crossover frequency will be suppressed.
Frequency	20Hz -20kHz	The Frequency parameter indicates the centre frequency of the filter. This is the central frequency between the upper and lower cutoff frequencies of the filter. The frequency can be set between 20Hz and 20kHz.
Q-factor	0.01 - 15	The Q-factor parameter is the quality factor related to the bandwidth of the filter. A higher Q-factor indicates a more selective filter with a smaller bandwidth. The standard Q-factor value for the 7-band EQ is set to 0.9, whereby the 7 bands have good coverage over the entire audio spectrum. A higher Q-factor makes it possible to influence specific frequency ranges of the audio spectrum.
Boost	Not Available	Boost is not available on the input filter.
Enabled	Enable/Disable	Enables or disables the desired filter.

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Antifeedback

Sound Processing

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Antifeedback enables automatic detection of feedbacking frequencies and applies a notch filter to prevent feedbacking.

Parameter Name	Parameter Range	Parameter Definition
All Off	Selection	Disables all antifeedback filters.
All Auto	Selection	Applies a dynamic filter to all twelve filters.
Off	Selection	Disables the selected filter.
Auto	Selection	Applies dynamic filters to avoid feedback.
Fixed	Selection	Applies permanent filters to avoid feedback.

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Volume

Sound Processing

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Sets the attenuation of the input source in the Input Block and the mixer output in the Zone Block.
Note: Volume in Zone Block has the identical functionality as the master volume of the mixer.

Parameter Name	Parameter Range	Parameter Definition
Volume	-90 – 0 dB	Sets the attenuation level of the audio block.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Delay

Sound Processing

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The delay can be adjusted by moving the corresponding fader left and right. The delay time is indicated in milliseconds on the left side of the fader and the audio transmission distance in meters is shown accordingly with the delay time under the fader. Please note that the meter indication is in average conditions at an air temperature of 21 pC. 

Parameter Name	Parameter Range	Parameter Definition
Enabled	Enable/Disable	Enables or disables the DSP feature.
Delay	0.06 – 100ms	The delay can be enabled on all inputs for audio-video sync purposes (except Test).
Delay	0.06 – 2000ms	The delay can be enabled on all outputs for various purposes such as delay lines.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Mixer

Sound Processing

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The mixer function makes it possible to create a mix of all mapped audio inputs in a zone. 
Using the universal network/PoE wall panel controller NCP105, 16 mapped sources, 8 mixed scenes and an off state can be selected easily in a zone.
Note: Volume in Zone Block has the identical functionality as the master volume of the mixer. 

Parameter Name	Parameter Range	Parameter Definition
Channel Volume Slider	-90 – 0 dB	The channel volume slider sets the mix level of the mapped source.
Route	Enable/Disable	The attenuation value of the source selected with the route becomes 0dB, and the attenuation value of the other mapped sources decreases to -90dB or in other words muted.
Scene	Apply/Save	Up to 8 mixing scenes can be saved and recalled.
Master Volume Slider	-90 – 0 dB	The master volume slider sets the mixer or zone output level. In the zone block, the master volume slider and volume settings are identical.
Master Mute	Enable/Disable	The master mute mutes the mixer or the zone output.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Test (Test Signal)

Sound Processing

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An internal digital signal generator is provided which can generate white noise, pink noise, and Sinusoidal signals with selectable frequencies. The test signal generator can be found in the Input Block.

Parameter Name	Parameter Range	Parameter Definition
White Noise	Selection	White noise has constant power and energy per frequency is equal.
Pink Noise	Selection	Pink noise has lesser power as the frequency gets higher and more energy is allocated to lower frequencies.
Sine Wave	Selection	Sinusoidal waveforms are periodic waveforms.
Frequency	20Hz -20kHz	When a sinusoidal signal is selected, the frequency can be adjusted by clicking the up and down arrows displayed next to the indicated frequency.

The signal generator can be injected into any zone, without mapping required, by enabling the Test function in the Zone Block.

Parameter Name	Parameter Range	Parameter Definition
Enabled	Enable/Disable	Enables or disables the DSP feature.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
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Talkover

Sound Processing

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The talkover function sets the talkover source level, and zone level during the talkover, hold, and fade speed for recovery of the source level.

Parameter Name	Parameter Range	Parameter Definition
Enabled	Enable/Disable	Enables or disables the DSP feature.
Talkover Source	Selection	Opens a list where you can select the source that applies ducking to the current audio source.
Matrix Level	-90 – 0 dB	Sets the attenuation level for the output of the zone mixer.
Talkover Level	-90 – 0 dB	Sets the talkover channel level
Hold	0.1 – 60 second	Sets how long all channels should be suppressed with no talk-over signal present.
Fade Speed	0.5 – 200 dB/sec	Sets the time to increase the ducking level from the user-dependent ducking level to 0dB.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Paging

Sound Processing

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Sets the attenuation of the paging announcement in the zone. In addition, the paging console can give an offset to the default paging level. For example, EVAC can be at a higher volume.

Parameter Name	Parameter Range	Parameter Definition
Paging Volume	-90 – 0 dB	Sets the attenuation of the paging announcement in the zone.
GPO	Selection	Automatic GPIO output triggering while paging. GPIO should be set as GPO in LUNA-F.

Training Video

You can copy and paste the link below or scan the code to watch the training video of this DSP feature.
  Category by audac

Priority

Sound Processing

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The priority settings menu makes it possible to configure the priority channels. The LUNA series offers four levels of priority that can be triggered by stereo or mono analog inputs, Flex inputs, Dante inputs, and OS inputs.

Parameter Name	Parameter Range	Parameter Definition
Enabled	Enable/Disable	Enables or disables the DSP feature.
Trigger	Selection	The Trigger is the source that triggers the priority to engage. The trigger can be an input coming from a fire alarm system.
Input	Selection	Input sources that can be patched in case a priority situation occurs. This includes all physical inputs, Dante inputs etc.
Hold Time	0.1 – 30000 second	Hold time for the priority after the input message or voice file ends.
Fade Speed	1 -200 dB/sec	Set the fade speed to disengage the priority after a certain hold time.
Volume	-99 – 0 dB/sec	Sets the attenuation level for the input message or the voice file of the priority.
Contact	Selection	List of GPIO that can receive contact because of the received priority trigger.

Using Voice Files with Priority

The procedure to use OS input as a priority input is explained below in steps.

1. Create a voice file event in the Voice Files.
2. Create an event in the Event Handler that uses an alarm system as a GPIO trigger.
3. The created event should trigger the previously created voice file event.
4. In the Priority section of the zone, select OS1, OS2 or Mono OS 1+2 as your trigger and input. If you select Mono OS1+2, that channel should be enabled.
5. The voice file event will be played in that zone as a priority whether it is assigned or not to the zone's Voice File section.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Compressor

Sound Processing

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A compressor is an automated volume control tool with the setting of maximum volume to avoid any clipping caused by the signal dynamics or peaks. Threshold and ratio indicate how much the signal is going to be attenuated.

Parameter Name	Parameter Range	Parameter Definition
Enabled	Enable/Disable	Enables or disables the DSP feature.
Threshold	-60 – 6 dB	The threshold control sets the level at which the compression effect is engaged. It will be compressed only when a level passes above the threshold. If the threshold level is set at say -10 dB, only signal peaks that extend above that level will be compressed. The rest of the time, no compression will be taking place.
Knee	0 -20 dB	The knee is assigned as a numerical value yet can be described as qualitatively: soft, hard, or somewhere in between. The hard knee curve shows a sudden change in slope (ratio) that begins at the threshold. The soft knee curve, in contrast, shows a more gradual change.
Ratio	1-100 (n:1)	Specifies the amount of attenuation applied to the signal. A ratio of 1:1 (one to one) is the lowest and it represents unity gain, or in other words, no attenuation. These compression ratios are expressed in decibels so that a ratio of 2:1 indicates that a signal exceeding the threshold by 2 dB will be attenuated down to 1 dB above the threshold. A ratio of around 3:1 is considered moderate compression, 5:1 would be medium compression, 8:1 starts getting into strong compression and 20:1 thru infinity to one would be considered limiting by most and can be used to ensure that a signal does not exceed the amplitude of the threshold.
Release Time	0 – 1000 second	It is the time it takes for the signal to go from the compressed "or attenuated" state back to the original non-compressed signal. Release times will be longer than attack times, ranging anywhere from 40-60 ms to 2-5 seconds, depending on which unit you are working with. Typically, release time should be set as short as possible without producing a "pumping" effect, which is caused by cyclic activation and deactivation of compression.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Voice File

Sound Processing

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Voice file sets the available audio messages or announcements in the zone from the internal memory (SD Card) or external memory (USB Type C inputs). Up to 100 items can be selected and priority levels and file paths can be adjusted on the Voice Files overview screen. Voice files can be triggered by GPIO or timed events. MP3 and WAV are supported file formats.

Parameter Name	Parameter Range	Parameter Definition
Voice file	Selection	Up to 100 items can be selected.
Audio Source	Selection	Mono OS1+2 is set by default but not enabled on the overview screen. Also available inputs are OS In1 and OS In2 which are already enabled.
Volume	-99 – 0 dB/sec	Sets the attenuation level for the voice file in the zone.
GPO	Selection	Automatic GPIO output triggering with Voice File. GPIO should be set as GPO in LUNA-F.

Training Video

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  Category by audac

Flex and Fixed GPIO

GPIO

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LUNA-F has 24 flex inputs/outputs which can be configured in all possible ways. On the other hand, LUNA-U has fixed 12 GPIO input and 12 GPIO output ports. LUNA series GPIO ports are both edge and configurable threshold level triggered. Input possibilities are active low/high, rising/falling edge and analog input 0-33V. Output is open drain. 

The internal 24V is capable of delivering a maximum current of 1 Amp.

 

GPIO Output

Parameter Name	Parameter Range	Parameter Definition
Full Name	Not Available	Full name is used on the GPIO label and the drop-down selection lists for contacts
Short Name
Type	Selection	A list of GPO behaviours that can be selected
Hold	Selection	Holds the contact as long as the trigger is available (e.g. keep the exit light on when there is a fire alarm trigger)
Pulse	Selection	Holds the contact momentary, for a defined time when the trigger is available. The "On Time" slider defines the pulse's hold time.
On Time	10 - 30000 ms	The "On Time" slider defines the pulse's hold time.
Vibration	Selection	The vibrator type sets a series of pulses where the on-time and off-time parameters set how frequently the pulses should be generated.
On Time	10 - 30000 ms	The "On Time" slider defines the vibrator's on-time lengths.
Off Time	10 - 30000 ms	The "Off Time" slider defines the pulse's off-time lengths.
Invert Trigger	True/False	Inverts the result/output of the trigger.
Simulation	Not Available	Provides a visual representation of the trigger and result.
GPIO Status/Trigger	1/0	Sets the trigger status for the GPO contact. You can activate the GPO contact when there is a trigger or in absence of a trigger.

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How to create snapshots

Snapshots Category by audac

How to recall Snapshots on your dashboard

Snapshots Category by audac

How to recall a Snapshot in the Event Handler

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Where are Snapshots stored on your AUDAC device

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How to Assign Unique Device IDs for Identical Devices in AUDAC Touch™

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Controlling zones on LUNA series

Dashboard Category by audac

You can download example commands from the link below. Feel free to test the JSON files in the zip file by importing them into Commander. For other commands, you can visit the product pages.

Example Commands for MTX series and XMP44

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How to Assign Unique Device IDs for Identical Devices in AUDAC Touch™

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Pre-Gain, Gain & Automatic Gain Control (AGC)

Sound Processing

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Pre-Gain

Manually adjustable pre-gain for microphone/line level adjustment is available for input signals up to 22dBV/24dBu. It is a digitally controlled analogue gain stage. Pre-Gain can be used with both Gain and AGC.

Parameter Name	Parameter Range	Parameter Definition
Pre-Gain	-6/0/34/40 dB	The Pre-Gain parameter offers a selection of four gain levels for the microphone level, line level, and hot signal source (e.g., DJ setup).

Gain

Gain is available for all input channels with a range of -35 and 35 dB for the LUNA series. It is also possible to adjust the input gain automatically.
Note: NWP series have -15 and 15dB of gain range.

Parameter Name	Parameter Range	Parameter Definition
Gain	+/-35 dB +/-15 dB	Input signal up to 22dBV/24dBu

Automatic Gain Control (AGC)

All inputs contain the possibility to enable Automatic Gain Control (AGC). This continuously adjusts the input gain, ensuring a constant output level while the input level varies. The gain adjustments are made in extremely small step adjustable sizes ensuring high-quality audio, even during gain changes.

Parameter Name	Parameter Range	Parameter Definition
Target (A)	-20 - 6 dB	The Target parameter specifies a signal's target level before entering the Matrix. Continuously, the signal matching the level specified by the target parameter will be attempted to adjust.
Max Gain (B)	0 - 30 dB	The Max Gain parameter specifies the maximum gain adjustment which can be achieved between the input level and the target level. This can be used to prevent excessive noise or microphone feedback when, for example, a microphone is not being used. Note that this setting may prevent the AGC from reaching the target level, but this behavior is desirable to achieve the best overall sound.
Hold (C)	0.1 - 60 second	The Hold parameter specifies the AGC hold time during which no action will be taken when the output level falls below the target output level. This is used to prevent the gain from modulating on low frequencies which may cause distortion. For line signals, it is recommended to specify a long hold time to prevent the AGC from adjusting the volume during quiet music passages.
Decay (D)	5 - 200 dB/sec	The Decay parameter specifies the time the AGC will take to increase the gain, raising the signal from the current level (below the target level) to the target level. A slow Decay setting can be used if a fixed output level should be maintained, while a fast Decay setting can be used to compress the dynamic range of speech.
Attack (E)	5 - 200 dB/sec	The Attack parameter specifies the reaction time in which the AGC starts attenuating after a sudden increase in input level above the target level. The attack time should be fast to avoid any distortion caused by clipping, but when the attack time is too fast, the AGC will overreact to short peaks, causing audible distortion.
Threshold (B)	-90 - 30 dB	The Threshold parameter specifies the level at which the noise gate will be enabled. When the level of the applied input signal is below the set threshold level, the noise gate will be enabled. This will cut off the signal, resulting in no noise on the outputs. To avoid unwanted noises (noise gate opening and closing rapidly) when the signal level is close to the threshold level, the noise gate function uses a time-out period in combination with hysteresis.
Gain Freeze	Selection	The Gain Freeze will freeze the reached gain level and keeps it fixed.
Gain Recovery	Selection	The Gain Recovery will recover the reached gain level back to 0dB.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Volume

Sound Processing

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Sets the attenuation of the input source in the Input Block and the mixer output in the Zone Block.
Note: Volume in Zone Block has the identical functionality as the master volume of the mixer.

Parameter Name	Parameter Range	Parameter Definition
Volume	-90 – 0 dB	Sets the attenuation level of the audio block.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Mixer

Sound Processing

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The mixer function makes it possible to create a mix of all available audio inputs for an output. Using the universal network/PoE wall panel controller NCP105, available sources, 5 mixed scenes and an off state can be selected easily in a zone.
Note: Volume in Zone Block has the identical functionality as the master volume of the mixer. 

Parameter Name	Parameter Range	Parameter Definition
Channel Volume Slider	-90 – 0 dB	The channel volume slider sets the mix level of the mapped source.
Route	Enable/Disable	The attenuation value of the source selected with the route becomes 0dB, and the attenuation value of the other mapped sources decreases to -90dB or in other words muted.
Scene	Apply/Save	Up to 5 mixing scenes can be saved and recalled.
Master Volume Slider	-90 – 0 dB	The master volume slider sets the mixer or zone output level. In the zone block, the master volume slider and volume settings are identical.
Master Mute	Enable/Disable	The master mute mutes the mixer or the zone output.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

How to Assign Unique Device IDs for Identical Devices in AUDAC Touch™

Category by audac

Pre-Gain, Gain & Automatic Gain Control (AGC)

Sound Processing

---

Pre-Gain

Manually adjustable pre-gain for microphone/line level adjustment is available for input signals up to 22dBV/24dBu. It is a digitally controlled analogue gain stage. Pre-Gain can be used with both Gain and AGC.

Parameter Name	Parameter Range	Parameter Definition
Pre-Gain	-6/0/34/40 dB	The Pre-Gain parameter offers a selection of four gain levels for the microphone level, line level, and hot signal source (e.g., DJ setup).

Gain

Gain is available for all input channels with a range of -35 and 35 dB for the LUNA series. It is also possible to adjust the input gain automatically.
Note: NWP series have -15 and 15dB of gain range.

Parameter Name	Parameter Range	Parameter Definition
Gain	+/-35 dB +/-15 dB	Input signal up to 22dBV/24dBu

Automatic Gain Control (AGC)

All inputs contain the possibility to enable Automatic Gain Control (AGC). This continuously adjusts the input gain, ensuring a constant output level while the input level varies. The gain adjustments are made in extremely small step adjustable sizes ensuring high-quality audio, even during gain changes.

Parameter Name	Parameter Range	Parameter Definition
Target (A)	-20 - 6 dB	The Target parameter specifies a signal's target level before entering the Matrix. Continuously, the signal matching the level specified by the target parameter will be attempted to adjust.
Max Gain (B)	0 - 30 dB	The Max Gain parameter specifies the maximum gain adjustment which can be achieved between the input level and the target level. This can be used to prevent excessive noise or microphone feedback when, for example, a microphone is not being used. Note that this setting may prevent the AGC from reaching the target level, but this behavior is desirable to achieve the best overall sound.
Hold (C)	0.1 - 60 second	The Hold parameter specifies the AGC hold time during which no action will be taken when the output level falls below the target output level. This is used to prevent the gain from modulating on low frequencies which may cause distortion. For line signals, it is recommended to specify a long hold time to prevent the AGC from adjusting the volume during quiet music passages.
Decay (D)	5 - 200 dB/sec	The Decay parameter specifies the time the AGC will take to increase the gain, raising the signal from the current level (below the target level) to the target level. A slow Decay setting can be used if a fixed output level should be maintained, while a fast Decay setting can be used to compress the dynamic range of speech.
Attack (E)	5 - 200 dB/sec	The Attack parameter specifies the reaction time in which the AGC starts attenuating after a sudden increase in input level above the target level. The attack time should be fast to avoid any distortion caused by clipping, but when the attack time is too fast, the AGC will overreact to short peaks, causing audible distortion.
Threshold (B)	-90 - 30 dB	The Threshold parameter specifies the level at which the noise gate will be enabled. When the level of the applied input signal is below the set threshold level, the noise gate will be enabled. This will cut off the signal, resulting in no noise on the outputs. To avoid unwanted noises (noise gate opening and closing rapidly) when the signal level is close to the threshold level, the noise gate function uses a time-out period in combination with hysteresis.
Gain Freeze	Selection	The Gain Freeze will freeze the reached gain level and keeps it fixed.
Gain Recovery	Selection	The Gain Recovery will recover the reached gain level back to 0dB.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Volume

Sound Processing

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Sets the attenuation of the input source in the Input Block and the mixer output in the Zone Block.
Note: Volume in Zone Block has the identical functionality as the master volume of the mixer.

Parameter Name	Parameter Range	Parameter Definition
Volume	-90 – 0 dB	Sets the attenuation level of the audio block.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

Mixer

Sound Processing

---

The mixer function makes it possible to create a mix of all available audio inputs for an output. Using the universal network/PoE wall panel controller NCP105, available sources, 5 mixed scenes and an off state can be selected easily in a zone.
Note: Volume in Zone Block has the identical functionality as the master volume of the mixer. 

Parameter Name	Parameter Range	Parameter Definition
Channel Volume Slider	-90 – 0 dB	The channel volume slider sets the mix level of the mapped source.
Route	Enable/Disable	The attenuation value of the source selected with the route becomes 0dB, and the attenuation value of the other mapped sources decreases to -90dB or in other words muted.
Scene	Apply/Save	Up to 5 mixing scenes can be saved and recalled.
Master Volume Slider	-90 – 0 dB	The master volume slider sets the mixer or zone output level. In the zone block, the master volume slider and volume settings are identical.
Master Mute	Enable/Disable	The master mute mutes the mixer or the zone output.

Training Video

You can click on the video or scan the code to watch the training video of this DSP feature.
  Category by audac

How to Assign Unique Device IDs for Identical Devices in AUDAC Touch™

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