[asterisk-users] Record in mp3

Tilghman Lesher tilghman at mail.jeffandtilghman.com
Mon Apr 27 14:02:23 CDT 2009


On Friday 24 April 2009 18:35:16 Atis Lezdins wrote:
> > Secondarily, MPEG audio compression takes a lot of CPU.  Until the last
> > few years, desktop CPUs weren't even capable of doing realtime MPEG audio
> > compression, which is necessary if you're going to have the recording
> > ready by the time the audio input is terminated.  Above and beyond that,
> > even modern CPUs are limited in how many concurrent streams can be
> > MPEG-compressed, which may cause problems if you're encoding multiple
> > channels to MP3 at the same time.
>
> Well, actually it's lot of CPU for encoding 44kHz stream. I wonder how
> it would scale to encode 8kHz.. We currently do a daily routine to
> compress all ulaw files to mp3 at night time, and it takes ~6 hours of
> processing on 1 CPU (no parallel processing).
>
> Regarding legal reasons, can't it be linked with lame within
> asterisk-addons?

You're confusing licensing issues with patent issues.  No, linking it to
something else does not solve patent issues.

-- 
Tilghman



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