Re: [asterisk-users] Call recording format

2010-11-22 Thread Joel Maslak
What format are the actual calls in? Are they in G.711u/a format or are they in something else (perhaps gsm?) format? I'm asking to find out if Asterisk would need to transcode them. On Mon, Nov 22, 2010 at 6:47 AM, Vilius Adamkavicius vilius.adamkavic...@invade.net wrote: Hi All, We have a

Re: [asterisk-users] Call recording format

2010-11-22 Thread Vilius Adamkavicius
Hi Joel, We have a meetme on which we are landing two G.711 alaw calls, one coming from TDM another from SIP. Once we those parties are in the conference we are adding one more leg using Local channel and starting to record it. Surely it would be logical if it would be less overhead recording

Re: [asterisk-users] Call recording format

2010-11-22 Thread David Backeberg
On Mon, Nov 22, 2010 at 8:47 AM, Vilius Adamkavicius vilius.adamkavic...@invade.net wrote: Hi All, We have a requirement to record over 60 simultaneous calls. Our recording facilities are implemented using Monitor() over AMI. The thing we have noticed that making 60 simultaneous call

Re: [asterisk-users] Call recording format

2010-11-22 Thread Vilius Adamkavicius
Hi David, Looking at MOS G.711alaw wav most definitely has the higher score than gsm. Moreover recording in gsm is more CPU intense than wav. Therefore your suggestion to do more CPU intense recording and afterwards use system resources to convert it back to wav is not a solution. Also some of

Re: [asterisk-users] Call recording format

2010-11-22 Thread Tzafrir Cohen
On Mon, Nov 22, 2010 at 03:28:27PM +, Vilius Adamkavicius wrote: Hi David, Looking at MOS G.711alaw wav most definitely has the higher score than gsm. Moreover recording in gsm is more CPU intense than wav. Therefore your suggestion to do more CPU intense recording and afterwards use

Re: [asterisk-users] Call recording format

2010-11-22 Thread Joel Maslak
WAV or wav? One of these has GSM-encoding inside a WAV formatted envelope. That said, I wouldn't expect that to have any noticeable CPU utilization above that of GSM. If you are using the non-GSM version of WAV, then I am as baffled as you - hopefully someone who knows more about this can help.

Re: [asterisk-users] Call recording format

2010-11-22 Thread Vilius Adamkavicius
We are using wav, not WAV. I believe WAV is the one with GSM. Its a very good idea to compare WAV against wav, will run some tests and come back with outcome, will try Tzafrir's suggestion as well. Thanks guys Vilius. On 22 November 2010 16:31, Joel Maslak jmas...@antelope.net wrote: WAV or