2004-10-01 03:18:48 +00:00
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[speex]
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2005-08-26 20:14:06 +00:00
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; CBR encoding quality [0..10]
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; used only when vbr = false
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2004-10-01 03:18:48 +00:00
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quality => 3
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2005-08-26 20:14:06 +00:00
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; codec complexity [0..10]
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; tradeoff between cpu/quality
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complexity => 2
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; perceptual enhancement [true / false]
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; improves clarity of decoded speech
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2004-10-01 03:18:48 +00:00
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enhancement => true
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2005-08-26 20:14:06 +00:00
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; voice activity detection [true / false]
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2005-10-04 22:51:59 +00:00
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; reduces bitrate when no voice detected, used only for CBR
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; (implicit in VBR/ABR)
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2005-08-26 20:14:06 +00:00
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vad => true
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; variable bit rate [true / false]
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; uses bit rate proportionate to voice complexity
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vbr => true
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; available bit rate [bps, 0 = off]
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; encoding quality modulated to match this target bit rate
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; not recommended with dtx or pp_vad - may cause bandwidth spikes
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2004-12-30 01:40:47 +00:00
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abr => 0
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2005-08-26 20:14:06 +00:00
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; VBR encoding quality [0-10]
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; floating-point values allowed
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vbr_quality => 4
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; discontinuous transmission [true / false]
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; stops transmitting completely when silence is detected
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; pp_vad is far more effective but more CPU intensive
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2004-10-01 03:18:48 +00:00
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dtx => false
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2005-03-17 21:30:19 +00:00
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2005-08-26 20:14:06 +00:00
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; preprocessor configuration
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; these options only affect Speex v1.1.8 or newer
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; enable preprocessor [true / false]
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; allows dsp functionality below but incurs CPU overhead
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preprocess => false
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; preproc voice activity detection [true / false]
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; more advanced equivalent of DTX, based on voice frequencies
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pp_vad => false
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; preproc automatic gain control [true / false]
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pp_agc => false
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pp_agc_level => 8000
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; preproc denoiser [true / false]
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pp_denoise => false
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; preproc dereverb [true / false]
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pp_dereverb => false
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pp_dereverb_decay => 0.4
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pp_dereverb_level => 0.3
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2005-03-17 21:30:19 +00:00
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[plc]
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; for all codecs which do not support native PLC
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; this determines whether to perform generic PLC
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; there is a minor performance penalty for this
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genericplc => true
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