Hi Waldo, Doesn't * record to .gsm file initially and then convert these to .wav later? I may be totally off the mark here, and if I am, I welcome the correction.
In that case, why not leave the files in .gsm format instead of translating them into another lossy format? Obviously if * records conversations as .wav files then I'd be leaning toward Speex (Vorbis) as it is a "suited to speech" compression format. Both Speex and ogg are Open Source, therefore patent issues are likely non-existent. MP3, otoh, is fine if you use one of their approved apps, and not if you use anything else. I'm steering clear of .mp3 (and have been for quite a few years now). -- Regards, Hilton Travis Phone: +61 (0)7 3344 3889 (Brisbane, Australia) Phone: +61 (0)419 792 394 Manager, Quark IT http://www.quarkit.com.au Quark Group http://quarkgroup.com.au/ Microsoft Small Business Specialists http://www.threatcode.com/ <-- its now time to shame poor coders into writing code that is acceptable for use on today's networks War doesn't determine who is right. War determines who is left. This document and any attachments are for the intended recipient only. It may contain confidential, privileged or copyright material which must not be disclosed or distributed. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > On Behalf Of Waldo Rubinstein > Sent: Tuesday, 8 November 2005 11:32 > > Wasn't aware of it, but if quality is good, it makes sense > since all I'm archiving is speech. > > Will evaluate further. > > Thanks, > Waldo > > On Nov 7, 2005, at 7:14 PM, Mark Edwards wrote: > > > I would recommend vorbis speex for this. > > You can get windows drivers to read speex files directly. > > > > Vorbis are the same bunch that develops ogg. > > > > Ogg and mp3 are more suited to music rather than speech. > > Speex is a much better fit for speech archiving. > > > > Mark > > > > > > -----Original Message----- > > From: BJ Weschke [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, 8 November 2005 5:52 AM > > > > You're probably not going to be violating any patent > > protections by using OGG instead of MP3. As far as > > compression goes, I've found the difference between > > the two of them to be negligible. I've always used > > OGG when possible to stay "IP safe". > > > > On 11/7/05, Waldo Rubinstein <[EMAIL PROTECTED]> wrote: > >> I'm trying to archive out call recordings and would > >> appreciate some feedback as to which audio compression is > >> more recommended MP3 or OGG. In the past, I've use lame > >> to convert to MP3, but I noticed the audio volume drops > >> significantly. Is it just a setting on the command line > >> of lame or is OGG better? Which achieves higher > >> compression rates while maintaining call quality? > >> > >> Thanks, > >> Waldo _______________________________________________ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users