On Mon, 25 Oct 2004 11:06:40 -0400, Race Vanderdecken <[EMAIL PROTECTED]> wrote: > If you have not gotten your answer yet;
I have tried the sox parameters Nicolas recommended and the files did seem to be ok with that on my Powerbook. I am now waiting for the feedback from the customer. > I would take the .gsm files that Digium produced That's the trouble, the customer ordered them as WAV, not GSM. I am sure if Digium had been asked to deliver them in GSM format they would have been ok and matched the Asterisk sound library. > or converted > from the .WAV files and play them back on the Windows machine and then > compare that quality to the WAV on the Windows box. They checked the WAV files they got from Digium on their Windoze box and they said that they sounded alright. I have to take their word for it because I don't have any Windoze box. When I play them on my Powerbook the volume too hight and it's not as clear as other WAV files I have checked, but the only thing that matters is how they sound when Asterisk plays them. So, I have put those right into /var/lib/asterisk/sounds and let the IVR menu play them back with Background(filename) and *that* sounds terrible. The volume is much to high and the sound is like it was sent through one of those guitar fuzz boxes. So, I then tried to convert them to GSM format and while I was able to get the volume down, the fuzz box effect got worse and worse the more I tried. Hence the question what sox parameters others have used in such situations. > The .gsm should sound the same on the windows box as on the > phone. If the quality is worse then contact Digium. All I expected is to get .gsm files that sound the same as the .gsm files in the Asterisk sound library. I wasn't able to accomplish that. Hopefully, with the parameters from Nicolas, they will be on par with the Asterisk sound library now. > I used http://www.audioi.com/ 'Audio Converter and Ripper' to > convert .wav to .gsm. Thanks for the link. Funny that website doesn't mention platforms anywhere at all. I guess it would be considered misplaced if I asked them whether they have a Linux or OSX version ;-) I was using sox, because that's what is sitting on the Asterisk server. > 4. if there is much difference check the phone AUDIO CODECS in > asterisk, you might be converting from GSM to G729 on the fly That would be rather surprising because the caller to listen to the IVR is coming in on a PSTN line via Zaptel ;-) but thanks anyway, for you help. I will report back when I know the feedback from the customer. If the parameters posted by Nicolas did the trick, then I will update the Wiki with that as an "if anything else fails" tooltip ;-) rgds benjk -- Sunrise Telephone Systems, 9F Shibuya Daikyo Bldg., 1-13-5 Shibuya, Tokyo, Japan. NB: Spam filters in place. Messages unrelated to the * mailing lists may get trashed. _______________________________________________ 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
