[asterisk-users] core show translation - difference in Asterisk Versions

Salman Zafar msalman212 at gmail.com
Wed Nov 21 01:42:49 CST 2012


Hello All,
           I was wondering if somebody could elaborate the change in
translation of codecs specifically the amount of time increased in Asterisk
11. For example

*Asterisk 11*
*            **alaw **speex *
*gsm     **15000 **15000 *
*ulaw    9150   15000*
* *
*Asterisk 1.6.x*
*            **alaw **speex *
*gsm     **2         12002 *
*ulaw    1         12002*

I did recalculate the translation for 60 or 1 seconds but nothing changes
on Asterisk 11 (VM, Cloud or even physical machine). Is it slin?, adding
this overhead or there is something I am overlooking?.
*
*
*Asterisk 11.0.1 => core show translation **(in microseconds)*

            *gsm  ulaw  alaw  g726 adpcm  slin lpc10  g729 speex speex16
 ilbc g726aal2  g722 slin16 testlaw speex32 slin12 slin24 slin32 slin44
slin48 slin96 slin192*
      *gsm     *- 15000 *15000 *15000 15000  9000 15000 15000 *15000   *23000
15000    15000 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
     *ulaw *15000     -  9150 15000 15000  9000 15000 15000 15000   23000
15000    15000 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
     *alaw *15000  9150     - 15000 15000  9000 15000 15000 15000   23000
15000    15000 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
     *g726 *15000 15000 15000     - 15000  9000 15000 15000 15000   23000
15000    15000 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
    *adpcm *15000 15000 15000 15000     -  9000 15000 15000 15000   23000
15000    15000 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
     *slin  *6000  6000  6000  6000  6000     -  6000  6000  6000   14000
 6000     6000  8250   8000    6000   14000   8000   8000   8000   8000
8000   8000    8000
    *lpc10 *15000 15000 15000 15000 15000  9000     - 15000 15000   23000
15000    15000 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
     *g729 *15000 15000 15000 15000 15000  9000 15000     - 15000   23000
15000    15000 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
    *speex *15000 15000 15000 15000 15000  9000 15000 15000     -   23000
15000    15000 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
  *speex16 *23500 23500 23500 23500 23500 17500 23500 23500 23500       -
23500    23500 15000   9000   23500   23000  17500  17000  17000  17000
 17000  17000   17000
     *ilbc *15000 15000 15000 15000 15000  9000 15000 15000 15000   23000
  -    15000 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
 *g726aal2 *15000 15000 15000 15000 15000  9000 15000 15000 15000   23000
15000        - 17250  17000   15000   23000  17000  17000  17000  17000
 17000  17000   17000
     *g722 *15600 15600 15600 15600 15600  9600 15600 15600 15600   15000
15600    15600     -   9000   15600   23000  17500  17000  17000  17000
 17000  17000   17000
   *slin16 *14500 14500 14500 14500 14500  8500 14500 14500 14500    6000
14500    14500  6000      -   14500   14000   8500   8000   8000   8000
8000   8000    8000
  *testlaw *15000 15000 15000 15000 15000  9000 15000 15000 15000   23000
15000    15000 17250  17000       -   23000  17000  17000  17000  17000
 17000  17000   17000
  *speex32 *23500 23500 23500 23500 23500 17500 23500 23500 23500   23500
23500    23500 23500  17500   23500       -  17500  17500   9000  17000
 17000  17000   17000
   *slin12 *14500 14500 14500 14500 14500  8500 14500 14500 14500   14000
14500    14500 14000   8000   14500   14000      -   8000   8000   8000
8000   8000    8000
   *slin24 *14500 14500 14500 14500 14500  8500 14500 14500 14500   14500
14500    14500 14500   8500   14500   14000   8500      -   8000   8000
8000   8000    8000
   *slin32 *14500 14500 14500 14500 14500  8500 14500 14500 14500   14500
14500    14500 14500   8500   14500    6000   8500   8500      -   8000
8000   8000    8000
   *slin44 *14500 14500 14500 14500 14500  8500 14500 14500 14500   14500
14500    14500 14500   8500   14500   14500   8500   8500   8500      -
8000   8000    8000
   *slin48 *14500 14500 14500 14500 14500  8500 14500 14500 14500   14500
14500    14500 14500   8500   14500   14500   8500   8500   8500   8500
 -   8000    8000
   *slin96 *14500 14500 14500 14500 14500  8500 14500 14500 14500   14500
14500    14500 14500   8500   14500   14500   8500   8500   8500   8500
8500      -    8000
  *slin192 *14500 14500 14500 14500 14500  8500 14500 14500 14500   14500
14500    14500 14500   8500   14500   14500   8500   8500   8500   8500
8500   8500       -

*Asterisk 1.6.2.x => core show translation **(in microseconds)*

           *g723   gsm  ulaw  alaw g726aal2 adpcm  slin lpc10  g729 speex
 ilbc  g726  g722 siren7 siren14 slin16*
     *g723*     -     -     -     -        -     -     -     -     -     -
    -     -     -      -       -      -
      *gsm     *-     -     2     *2     *4001     2     1  4001  4001
12002  8002  *4002     *2      -       -      2
     *ulaw     *-     2     -     1     4001     2     1  4001  4001 12002
 8002  4002     2      -       -      2
     *alaw     *-     2     1     -     4001     2     1  4001  4001 12002
 8002  4002     2      -       -      2
 *g726aal2     *-     2     2     2        -     2     1  4001  4001 12002
 8002  4002     2      -       -      2
    *adpcm     *-     2     2     2     4001     -     1  4001  4001 12002
 8002  4002     2      -       -      2
     *slin     *-     1     1     1     4000     1     -  4000  4000 12001
 8001  4001     1      -       -      1
    *lpc10     *-  4002  4002  4002     8001  4002  4001     -  8001 16002
12002  8002  4002      -       -   4002
     *g729     *-     2     2     2     4001     2     1  4001     - 12002
 8002  4002     2      -       -      2
    *speex     *-     2     2     2     4001     2     1  4001  4001     -
 8002  4002     2      -       -      2
     *ilbc     *-  4001  4001  4001     8000  4001  4000  8000  8000 16001
    -  8001  4001      -       -   4001
     *g726     *-     2     2     2     4001     2     1  4001  4001 12002
 8002     -     2      -       -      2
     *g722     *-     2     2     2     4001     2     1  4001  4001 12002
 8002  4002     -      -       -      1
   *siren7     *-     -     -     -        -     -     -     -     -     -
    -     -     -      -       -      -
  *siren14     *-     -     -     -        -     -     -     -     -     -
    -     -     -      -       -      -
   *slin16     *-  4003  4003  4003     8002  4003  4002  8002  8002 16003
12003  8003  4001      -       -      -

-- 
Regards

**************************
Muhammad Salman
***************************
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