asterisk/codecs.conf@f4a0b439d0fb (annotated)
asterisk/codecs.conf
Fri, 15 Oct 2010 19:06:09 +0200
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 15 Oct 2010 19:06:09 +0200
- changeset 263
- f4a0b439d0fb
- permissions
- -rw-r--r--
Correct shared library and plugin link logic, as well as informal text.
Update file server URL, update build resource estimations, correct RPATH
logic, allow for qmake(1) static to shared library changes via CONFIG
argument, correct documentation broken title and index links, correct
shared library install path, install only one set of (correct) plugins,
install the designer shared library (as required by QtCreator), announce
features related to shared linking using qmake(1), and correclty
substitute hard coded paths in prl and la library files.
| michael@202 | 1 | ;[speex] |
| michael@202 | 2 | ; CBR encoding quality [0..10] |
| michael@202 | 3 | ; used only when vbr = false |
| michael@202 | 4 | ;quality => 3 |
| michael@202 | 5 | |
| michael@202 | 6 | ; codec complexity [0..10] |
| michael@202 | 7 | ; tradeoff between cpu/quality |
| michael@202 | 8 | ;complexity => 2 |
| michael@202 | 9 | |
| michael@202 | 10 | ; perceptual enhancement [true / false] |
| michael@202 | 11 | ; improves clarity of decoded speech |
| michael@202 | 12 | ;enhancement => true |
| michael@202 | 13 | |
| michael@202 | 14 | ; voice activity detection [true / false] |
| michael@202 | 15 | ; reduces bitrate when no voice detected, used only for CBR |
| michael@202 | 16 | ; (implicit in VBR/ABR) |
| michael@202 | 17 | ;vad => true |
| michael@202 | 18 | |
| michael@202 | 19 | ; variable bit rate [true / false] |
| michael@202 | 20 | ; uses bit rate proportionate to voice complexity |
| michael@202 | 21 | ;vbr => true |
| michael@202 | 22 | |
| michael@202 | 23 | ; available bit rate [bps, 0 = off] |
| michael@202 | 24 | ; encoding quality modulated to match this target bit rate |
| michael@202 | 25 | ; not recommended with dtx or pp_vad - may cause bandwidth spikes |
| michael@202 | 26 | ;abr => 0 |
| michael@202 | 27 | |
| michael@202 | 28 | ; VBR encoding quality [0-10] |
| michael@202 | 29 | ; floating-point values allowed |
| michael@202 | 30 | ;vbr_quality => 4 |
| michael@202 | 31 | |
| michael@202 | 32 | ; discontinuous transmission [true / false] |
| michael@202 | 33 | ; stops transmitting completely when silence is detected |
| michael@202 | 34 | ; pp_vad is far more effective but more CPU intensive |
| michael@202 | 35 | ;dtx => false |
| michael@202 | 36 | |
| michael@202 | 37 | ; preprocessor configuration |
| michael@202 | 38 | ; these options only affect Speex v1.1.8 or newer |
| michael@202 | 39 | |
| michael@202 | 40 | ; enable preprocessor [true / false] |
| michael@202 | 41 | ; allows dsp functionality below but incurs CPU overhead |
| michael@202 | 42 | ;preprocess => false |
| michael@202 | 43 | |
| michael@202 | 44 | ; preproc voice activity detection [true / false] |
| michael@202 | 45 | ; more advanced equivalent of DTX, based on voice frequencies |
| michael@202 | 46 | ;pp_vad => false |
| michael@202 | 47 | |
| michael@202 | 48 | ; preproc automatic gain control [true / false] |
| michael@202 | 49 | ;pp_agc => false |
| michael@202 | 50 | ;pp_agc_level => 8000 |
| michael@202 | 51 | |
| michael@202 | 52 | ; preproc denoiser [true / false] |
| michael@202 | 53 | ;pp_denoise => false |
| michael@202 | 54 | |
| michael@202 | 55 | ; preproc dereverb [true / false] |
| michael@202 | 56 | ;pp_dereverb => false |
| michael@202 | 57 | ;pp_dereverb_decay => 0.4 |
| michael@202 | 58 | ;pp_dereverb_level => 0.3 |
| michael@202 | 59 | |
| michael@202 | 60 | |
| michael@202 | 61 | ;[plc] |
| michael@202 | 62 | ; for all codecs which do not support native PLC |
| michael@202 | 63 | ; this determines whether to perform generic PLC |
| michael@202 | 64 | ; there is a minor performance penalty for this |
| michael@202 | 65 | ;genericplc => true |
