On Tuesday 13 April 2004 12:12 am, James Gardiner wrote: > Hi all, > I am not sure if tis is a bug but.. > Was learning about VM etc to see how it all worked, and I noticed the > following.. > > In the default install, the VM system leaves 3 different copies of the > Voice message. > Size filename > 13kb Msg0000.gsm > 13kb Msg0000.wav > 122kb Msg0000.WAV <- under UNIX we have case sensitive file names of > course. > > I wanted to have a look at these files so loaded them into SOUND FORGE 6. > This first thing I noticed was that the LARGER file is of much HIGHER > volume. Like it had been normalised to 100% > The smaller was file, when loaded into sound forge, did not load properly, > only the first 2 seconds loads. > > Can anyone explain these issues and why they exist? > > All in all, I was wondering what would be the best format for best quality > but with still great compression. > > I want to archive all calls for a period of time with self expire. (For > example dedicate 5 gig disk space to the last number of calls that can fit > in the 5gig.) I want to store the best quality possible but also make best > use of disk space, so I can store for even longer periods. I was > considering ogg but then is occurred to me that GSM or other codecs > designed for audio with this frequency response may be better. (But the GSM > file above is not as clear as the WAV ones produced.) > > I was also wondering if the VM system when emailing the audio can be setup > to use something like ogg or MP3? > > Comments appreciated, > James Gardiner That is a very interesting observation I had not seen yet.
There are certainly a few ways to do this. Here is an idea: run a cron job that downsamples the WAV file using sox, then compresses it, and deletes the redundant files. Make sure to have the cron job run during the least-busy part of the day. Yes, it is a crude solution. ;) Yet it may get you by until you get a better solution. Anon _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users