Difference between revisions of "Voice Activity Detection (VAD)"
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== Configuration == | == Configuration == | ||
The Voice Activity Detection configuration is done from [[EMT overview | EMT]]. | The Voice Activity Detection configuration is done from [[EMT overview | EMT]]. | ||
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| + | * '''Enable''' Tick off to Enable or Disable the feature | ||
| + | * '''Minimum amplitude (dB):''' Choose the trigger amplitude | ||
| + | * '''Minimum duration of audio (ms):''' Choose for how long the sampled amplitude must be above the "Trigger amplitude" before triggering the '''On Action''' | ||
| + | * '''Minimum time before reactivation (ms):''' Choose how long to wait before enabling VAD after triggering the '''On Action''' | ||
| + | * '''Report DAK key off after (ms):''' This parameter sets the duration of the '''On Action''' presence | ||
== Availability == | == Availability == | ||
Revision as of 13:47, 20 September 2017
This article explains the principle of how the Voice Activity Detection (VAD) works.
Voice Activity Detection (VAD) or Sound Detection is a feature available for analog audio inputs.
Voice Activity Detection samples the peak amplitude detected at the analog audio input every 30 ms and converts it to dB.
If the sampled amplitude is continuously above a trigger amplitude for a set duration, then the programmed On Action is triggered.
Configuration
The Voice Activity Detection configuration is done from EMT.
- Enable Tick off to Enable or Disable the feature
- Minimum amplitude (dB): Choose the trigger amplitude
- Minimum duration of audio (ms): Choose for how long the sampled amplitude must be above the "Trigger amplitude" before triggering the On Action
- Minimum time before reactivation (ms): Choose how long to wait before enabling VAD after triggering the On Action
- Report DAK key off after (ms): This parameter sets the duration of the On Action presence
Availability
This function is available from Exigo 1.3.3 and newer.
