mirror of
https://github.com/asterisk/asterisk.git
synced 2025-10-31 02:37:10 +00:00
8e3af106db
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6426 65c4cc65-6c06-0410-ace0-fbb531ad65f3
65 lines
1.6 KiB
Plaintext
Executable File
65 lines
1.6 KiB
Plaintext
Executable File
[speex]
|
|
; CBR encoding quality [0..10]
|
|
; used only when vbr = false
|
|
quality => 3
|
|
|
|
; codec complexity [0..10]
|
|
; tradeoff between cpu/quality
|
|
complexity => 2
|
|
|
|
; 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 => 4
|
|
|
|
; 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 => false
|
|
|
|
; preproc voice activity detection [true / false]
|
|
; more advanced equivalent of DTX, based on voice frequencies
|
|
pp_vad => false
|
|
|
|
; preproc automatic gain control [true / false]
|
|
pp_agc => false
|
|
pp_agc_level => 8000
|
|
|
|
; preproc denoiser [true / false]
|
|
pp_denoise => false
|
|
|
|
; 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
|