Hi, I am trying DENOISE and AGC to some sip channels for ‘internal’ calls. I have the SPEEX installed and the codecs.conf as below:
[speex]
; CBR encoding quality [0…10]
; used only when vbr = false
qualiity => 9
; codec complexity [0…10]
; tradeoff between cpu/quality
complexity => 6
; perceptual enhancement [true / false]
; improves clarity of decoded speech
enhancement => true
; voice activity detection [true / false]
; reduces bitrate when no voice detected, used only for CBR
; (implicit in VBR/ABR)
vad => false
; variable bit rate [true / false]
; uses bit rate proportionate to voice complexity
vbr => false
; available bit rate [bps, 0 = off]
; encoding quality modulated to match this target bit rate
; not recommended with dtx or pp_vad - may cause bandwidth spikes
abr => 0
; VBR encoding quality [0-10]
; floating-point values allowed
vbr_quality => 10
; discontinuous transmission [true / false]
; stops transmitting completely when silence is detected
; pp_vad is far more effective but more CPU intensive
dtx => false
; preprocessor configuration
; these options only affect Speex v1.1.8 or newer
; enable preprocessor [true / false]
; allows dsp functionality below but incurs CPU overhead
preprocess => true
; preproc voice activity detection [true / false]
; more advanced equivalent of DTX, based on voice frequencies
pp_vad => true
; preproc automatic gain control [true / false]
pp_agc => true
pp_agc_level => 8000
; preproc denoiser [true / false]
pp_denoise => true
; preproc dereverb [true / false]
pp_dereverb => true
pp_dereverb_decay => 0.4
pp_dereverb_level => 0.3
[plc]
; for all codecs which do not support native PLC
; this determines whether to perform generic PLC
; there is a minor performance penalty for this
genericplc => true
I’ve tried to add this to /extensions_custom.conf under [from-internal] and/or [macro-dial-one] but have not seen DENOISE or AGC in the dial setup
; denoise
exten => s,n,Set(DENOISE(rx)=on)
exten => s,n,Set(DENOISE(tx)=off)
; agc
exten => s,n,Set(AGC(rx)=8000)
exten => s,n,Set(AGC(tx)=off)
I only have SIP clients but a phone in a very noisy area. Where do i need to add the denoise/agc options for it actually to take effect?
Thanks