[asterisk-config-auf.git] / etc-asterisk / codecs.conf

[speex]
; CBR encoding quality [0..10]
; used only when vbr = false
quality => 8

; codec complexity [0..10]
; tradeoff between cpu/quality
complexity => 8

; 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 => true

; variable bit rate [true / false]
; uses bit rate proportionate to voice complexity
vbr => true

; 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 => 8

; 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 => false
pp_agc_level => 8000

; preproc denoiser [true / false]
pp_denoise => true

; preproc dereverb [true / false]
pp_dereverb => false
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
Commit	Line	Data
b2e905a6 TN	1	[speex]
	2	; CBR encoding quality [0..10]
	3	; used only when vbr = false
	4	quality => 8
	5
	6	; codec complexity [0..10]
	7	; tradeoff between cpu/quality
	8	complexity => 8
	9
	10	; perceptual enhancement [true / false]
	11	; improves clarity of decoded speech
	12	enhancement => true
	13
	14	; voice activity detection [true / false]
	15	; reduces bitrate when no voice detected, used only for CBR
	16	; (implicit in VBR/ABR)
	17	vad => true
	18
	19	; variable bit rate [true / false]
	20	; uses bit rate proportionate to voice complexity
	21	vbr => true
	22
	23	; available bit rate [bps, 0 = off]
	24	; encoding quality modulated to match this target bit rate
	25	; not recommended with dtx or pp_vad - may cause bandwidth spikes
	26	abr => 0
	27
	28	; VBR encoding quality [0-10]
	29	; floating-point values allowed
	30	vbr_quality => 8
	31
	32	; discontinuous transmission [true / false]
	33	; stops transmitting completely when silence is detected
	34	; pp_vad is far more effective but more CPU intensive
	35	dtx => false
	36
	37	; preprocessor configuration
	38	; these options only affect Speex v1.1.8 or newer
	39
	40	; enable preprocessor [true / false]
	41	; allows dsp functionality below but incurs CPU overhead
	42	preprocess => true
	43
	44	; preproc voice activity detection [true / false]
	45	; more advanced equivalent of DTX, based on voice frequencies
	46	pp_vad => true
	47
	48	; preproc automatic gain control [true / false]
	49	pp_agc => false
	50	pp_agc_level => 8000
	51
	52	; preproc denoiser [true / false]
	53	pp_denoise => true
	54
	55	; preproc dereverb [true / false]
	56	pp_dereverb => false
	57	pp_dereverb_decay => 0.4
	58	pp_dereverb_level => 0.3
	59
	60
	61	[plc]
	62	; for all codecs which do not support native PLC
	63	; this determines whether to perform generic PLC
	64	; there is a minor performance penalty for this
65	genericplc => true