Displaying 2 results from an estimated 2 matches for "ilbc_ms".
2007 May 16
0
draft-ietf-avt-rtp-speex-01.txt
...if they receive packets each 30ms...
The sound cards play 2/3 of data received... This happen more
than you would imagine. Look at this implementation of current
iLBC in asterisk:
http://www.asteriskpbx.org/doxygen/trunk/codec__ilbc_8c-source.html
The initEncode is called with a #define
#define ILBC_MS 30
/* #define ILBC_MS 20 */
static int ilbctolin_new(struct ast_trans_pvt *pvt)
{
struct ilbc_coder_pvt *tmp = pvt->pvt;
initDecode(&tmp->dec, ILBC_MS, USE_ILBC_ENHANCER);
return 0;
}
The above means: If you negotiate a different packetisation interval:...
2007 May 16
2
draft-ietf-avt-rtp-speex-01.txt
> Page 3:
>
> To be compliant with this specification, implementations MUST support
> 8 kHz sampling rate (narrowband)" and SHOULD support 8 kbps bitrate.
> The sampling rate MUST be 8, 16 or 32 kHz.
>
> There is a type above after (narrowband), there is a " extra character.
>
> I don't understand what is the motivation to specify "SHOULD