search for: speex_set_abr

...o, I'm new in using speex and programming with it. So, please help me to be more clear about it. I'm trying to write a voice decoder and encoder program using libspeex and using its variable bit-rates feature. At the encoder section I set the bit-rate of the output stream by setting "SPEEX_SET_ABR" option using this command: speex_encoder_ctl(enc_state,SPEEX_SET_ABR,&Avr_BR); and Avr_BR is a variable holding my favourit bit-rate for example 33000 bps. Am I on right track up to this part? This encoded frame will enter the decoder as an input frame. I think there should be an option w...

Hi, I'm trying to cover all Speex configuration options to set quality/mode/bitrate in my application and I was wondering if the following all makes sense: - abr_bitrate - use average bitrate and set it using bitrate parameter - SPEEX_SET_ABR - cbr_bitrate - use constant bitrate and set it using bitrate parameter - SPEEX_SET_BITRATE - cbr_mode - use constant bitrate and set it using mode parameter - SPEEX_SET_MODE - cbr_quality - use constant bitrate and set it using quality parameter - SPEEX_SET_QUALITY - vbr_bi...

On 2010-04-11 10:09, Randy Yates wrote: > If I specify VBR mode via > > speex_encoder_ctl(pSpeexEncoder, SPEEX_SET_VBR,&isTrue); Try: speex_encoder_ctl(pSpeexEncoder, SPEEX_SET_ABR, &desiredRate);

...X > VBR + VAD (or "VBR without DTX", added in speex-1.0rc3) > VBR + VAD + DTX (ie. normal VBR) > > Quality/bitrate: > > for CBR: either SPEEX_SET_QUALITY (int) or SPEEX_SET_BITRATE > > for VBR: either SPEEX_SET_VBR_QUALITY (float) or SPEEX_SET_ABR > > AFAIK setting BITRATE or ABR will _override_ QUALITY or VBR_QUALITY > respectively. > > Conrad. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-request@xip...

Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> writes: > Quality and bit-rate are different ways of specifying exactly the same > thing. Complexity is orthogonal. That clears it up - thanks. Is this in the manual? --Randy > > Jean-Marc > > On 2010-04-03 08:28, Randy Yates wrote: >> Jean-Marc: I know you're seeing these - how about a response? >>

Hi, Is there are document where the interaction between all the configuration options of speex is explained? Speex seems to have CBR, VBR and ABR. You can also use SPEEX_SET_QUALITY (SPEEX_SET_VBR_QUALITY) and SPEEX_SET_BITRATE which I suppose can't be set at the same time. Is there a list of possible combinations somewhere? I also have another question related to jitter. To minimize jitter,

...D: st->vad_enabled = (*(long*)ptr); break; case SPEEX_GET_VAD: (*(long*)ptr) = st->vad_enabled; break; case SPEEX_SET_DTX: st->dtx_enabled = (*(long*)ptr); break; case SPEEX_GET_DTX: (*(long*)ptr) = st->dtx_enabled; break; case SPEEX_SET_ABR: st->abr_enabled = (*(long*)ptr); st->vbr_enabled = 1; { int i=10, rate, target; float vbr_qual; target = (*(long*)ptr); while (i>=0) { speex_encoder_ctl(st, SPEEX_SET_QUALITY, &i); speex_encoder_ctl...