[asterisk-users] Call Recording audio file quality query

[William Stillwell]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Ishfaq Malik
> Sent: Tuesday, February 08, 2011 6:10 AM
> To: asterisk-users at lists.digium.com
> Subject: [asterisk-users] Call Recording audio file quality query
> 
> Hi
> 
> We're getting requests coming in for higher quality audio in our call
> recordings. We currently use MixMonitor and everything is being saved
> in
> it's native 8000Hz, 16 bit wav format.
> 
> I have seen information on using Monitor and specifying a conversion to
> mp3 when the call ends and the 2 channels get mixed but surely the 2
> channels are already saved as 16bit 8000Hz wav files so the quality is
> lost already?
> 
> Is there any way of making high quality recordings of call content?
> 
> We're currently using asterisk 1.4 and soon upgrading to 1.8
> 
> Thanks in Advance
> 
> 

Switch everything to ulaw/alaw codecs, and stop using highly compressed
codecs

As for 16bit, 8khz, that is as high as your going to get in the telephone
world.