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.
On Mon, Nov 22, 2010 at 7:58 AM, Vilius Adamkavicius <[email protected]> wrote: > 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 alaw wav > since we are using alaw on both parties, but its not. > Thanks, > Vilius. > On 22 November 2010 14:19, Joel Maslak <[email protected]> wrote: >> >> 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 >> <[email protected]> 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 recordings using wav CPU load >> > is >> > significantly higher (around 2 times more) than using gsm. Even writing >> > call >> > recordings to /dev/null makes a big difference in CPU load. >> > What could be the reason for this? Is Asterisk updating wav headers >> > every >> > time it writes? >> > What would be recommended hardware setup for over 60 simultaneous call >> > records? >> > Regards, >> > Vilius. >> > >> > >> > >> > -- >> > _____________________________________________________________________ >> > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> > New to Asterisk? Join us for a live introductory webinar every Thurs: >> > http://www.asterisk.org/hello >> > >> > asterisk-users mailing list >> > To UNSUBSCRIBE or update options visit: >> > http://lists.digium.com/mailman/listinfo/asterisk-users >> > >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> New to Asterisk? Join us for a live introductory webinar every Thurs: >> http://www.asterisk.org/hello >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users > > > > -- > Vilius Adamkavicius > InVADE Technical Support > > > 3 Berkeley Crescent, Bristol United Kingdom BS8 1HA > > Company Registration Number: 3660482 > Registered in England and Wales > this email, and any attachment, is intended only for the attention of the > addressee. Its unauthorised use, disclosure, storage or copying is not > permitted. If you are not the intended recipient, please destroy all copies > and inform the sender by return email. If you have received this email in > error, please return it to the sender and highlight the error. We accept no > legal liability for the content of the message. Any opinions or views > presented are solely the responsibility of the author and do not necessarily > represent those of InVADE. We cannot guarantee that this message has not > been modified in transit, and this message should not be viewed as > contractually binding. Although we have taken reasonable steps to ensure > that this email and attachments are free from any virus, we advise that in > keeping with good computing practice the recipient should ensure they are > actually virus free. > > international phone number +44(0) 117 33 555 00 > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
