[Asterisk-Users] How "expensive" are the
different codecs? (Regarding CPU time)
Michael Vogel
icarus at dabo.de
Wed Dec 15 09:23:38 MST 2004
el Flynn schrieb:
> at the CLI, type "show translation" and it will show a chart of how long
> (in milliseconds) it will take to translate from one codec to another.
Thanks! That helps me a lot. Am I right that this chart is calculated
depending my machine's speed:
#######################################################################
zhad*CLI> show translation
Translation times between formats (in milliseconds)
Source Format (Rows) Destination Format(Columns)
G723 GSM ULAW ALAW G726 ADPCM SLINR LPC10 G729A SPEEX ILBC
G723 - - - - - - - - - - -
GSM - - 13 13 47 15 12 43 - 253 124
ULAW - 41 - 1 36 4 1 32 - 242 113
ALAW - 41 1 - 36 4 1 32 - 242 113
G726 - 82 43 43 - 45 42 73 - 283 154
ADPCM - 43 4 4 38 - 3 34 - 244 115
SLINR - 40 1 1 35 3 - 31 - 241 112
LPC10 - 58 19 19 53 21 18 - - 259 130
G729A - - - - - - - - - - -
SPEEX - 52 13 13 47 15 12 43 - - 124
ILBC - 59 20 20 54 22 19 50 - 260 -
zhad*CLI>
#######################################################################
Encoding to speex or ilbc seems to be too heavy for my machine ;-)
Thanks!
Michael
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