WebRTC's audio preprocessor. More...

#include <TeamTalk.h>

Public Attributes
struct {
TTBOOL bEnable
	Enable pre-amplifier. Replacement for TT_SetSoundInputGainLevel() More...

float fFixedGainFactor
	Gain factor. Default: 1. More...

}	preamplifier
	Configuration of WebRTC pre-amplifier. More...

struct {
TTBOOL bEnable
	Enable WebRTC echo canceller. The WebRTC echo canceller requires sound input and output devices are initialized using TT_InitSoundDuplexDevices(). This is because both input and output device must use the same sample rate. More...

}	echocanceller
	Configuration of WebRTC's echo canceller. See also TT_SetSoundDeviceEffects() More...

struct {
TTBOOL bEnable
	Enable WebRTC noise suppression. More...

INT32 nLevel
	Noise suppression level. 0 = Low, 1 = Moderate, 2 = High, 3 = VeryHigh. Default: 1. More...

}	noisesuppression
	Configuration of WebRTC's noise suppression. See also SpeexDSP. More...

struct {
TTBOOL bEnable
	Use WebRTC's voice detection to trigger CLIENTEVENT_VOICE_ACTIVATION. More...

}	voicedetection
	Configuration of WebRTC's voice detection. More...

struct {
TTBOOL bEnable
	Enable WebRTC's fixed digital gain. WebRTC's automatic gain control (AGC) More...

struct {
float fGainDB
	Gain level in dB. Range: 0 <= x < 50. Default: 0. More...

} fixeddigital
	Gain level for AGC. Only active when `bEnable` is true. More...

struct {
TTBOOL bEnable

float fInitialSaturationMarginDB

float fExtraSaturationMarginDB

float fMaxGainChangeDBPerSecond

float fMaxOutputNoiseLevelDBFS

} adaptivedigital
	Configuration for fine tuning gain level. More...

}	gaincontroller2
	Configuration of WebRTC's gain controller 2 for AGC. More...

struct {
TTBOOL bEnable
	Enable level estimater. When enabled TT_GetSoundInputLevel() will return a value based on WebRTC's level estimater. A WebRTC level estimater value of 0 will result in SOUND_VU_MAX and level estimater value of 127 will return SOUND_VU_MIN. More...

}	levelestimation
	Configuration of WebRTC's level estimater. More...

Detailed Description

WebRTC's audio preprocessor.

Use WebRTC's audio preprocessor, https://webrtc.org

Note that WebRTC's can only operate on 10 msec audio frame, so nTxIntervalMSec in AudioCodec must a multiple of 10.

WebRTCAudioPreprocessor is recommended to TT_SetSoundDeviceEffects() on desktop platforms.

Activate WebRTCAudioPreprocessor by calling TT_SetSoundInputPreprocessEx().

Definition at line 1311 of file TeamTalk.h.

Member Data Documentation

◆ bEnable

TTBOOL WebRTCAudioPreprocessor::bEnable

Enable pre-amplifier. Replacement for TT_SetSoundInputGainLevel()

Enable level estimater. When enabled TT_GetSoundInputLevel() will return a value based on WebRTC's level estimater. A WebRTC level estimater value of 0 will result in SOUND_VU_MAX and level estimater value of 127 will return SOUND_VU_MIN.

Enable WebRTC's fixed digital gain. WebRTC's automatic gain control (AGC)

Use WebRTC's voice detection to trigger CLIENTEVENT_VOICE_ACTIVATION.

Enable WebRTC noise suppression.

Enable WebRTC echo canceller. The WebRTC echo canceller requires sound input and output devices are initialized using TT_InitSoundDuplexDevices(). This is because both input and output device must use the same sample rate.

TT_EnableVoiceActivation() must still be called to activate voice detection event CLIENTEVENT_VOICE_ACTIVATION.

Enabling WebRTC's voice detection invalidates use of TT_SetVoiceActivationLevel()

Definition at line 1318 of file TeamTalk.h.

◆ fFixedGainFactor

float WebRTCAudioPreprocessor::fFixedGainFactor

Gain factor. Default: 1.

Definition at line 1320 of file TeamTalk.h.

◆

struct { ... } WebRTCAudioPreprocessor::preamplifier

Configuration of WebRTC pre-amplifier.

◆

struct { ... } WebRTCAudioPreprocessor::echocanceller

Configuration of WebRTC's echo canceller. See also TT_SetSoundDeviceEffects()

◆ nLevel

INT32 WebRTCAudioPreprocessor::nLevel

Noise suppression level. 0 = Low, 1 = Moderate, 2 = High, 3 = VeryHigh. Default: 1.

Definition at line 1341 of file TeamTalk.h.

◆

struct { ... } WebRTCAudioPreprocessor::noisesuppression

Configuration of WebRTC's noise suppression. See also SpeexDSP.

◆

struct { ... } WebRTCAudioPreprocessor::voicedetection

Configuration of WebRTC's voice detection.

◆ fGainDB

float WebRTCAudioPreprocessor::fGainDB

Gain level in dB. Range: 0 <= x < 50. Default: 0.

Definition at line 1370 of file TeamTalk.h.

◆

struct { ... } WebRTCAudioPreprocessor::fixeddigital

Gain level for AGC. Only active when bEnable is true.

◆ fInitialSaturationMarginDB

float WebRTCAudioPreprocessor::fInitialSaturationMarginDB

Definition at line 1379 of file TeamTalk.h.

◆ fExtraSaturationMarginDB

float WebRTCAudioPreprocessor::fExtraSaturationMarginDB

Definition at line 1381 of file TeamTalk.h.

◆ fMaxGainChangeDBPerSecond

float WebRTCAudioPreprocessor::fMaxGainChangeDBPerSecond

Definition at line 1383 of file TeamTalk.h.

◆ fMaxOutputNoiseLevelDBFS

float WebRTCAudioPreprocessor::fMaxOutputNoiseLevelDBFS

Definition at line 1385 of file TeamTalk.h.

Public Attributes