Hi all,
I was playing with asterisk .gsm sound file to work for callback.
But the quality is very poor and sound is very low so we cannot clearly hear
what is sound played.
Is there any option in asterisk to increase the volume of the IVR files or any
suggestion to get maximum quality of sound?
Thank You
Abdul
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On Nov 19, 2007 3:45 AM, Abdul wrote:> Hi all, > > I was playing with asterisk .gsm sound file to work for callback. > > But the quality is very poor and sound is very low so we cannot clearly hear > what is sound played. > > Is there any option in asterisk to increase the volume of the IVR files or > any suggestion to get maximum quality of sound?I am not familiar with this particular file, but you can increase the volume of any sound file using sox (sound exchanger) util to double the volume (linear increase) sox -v 2.0 old_file new_file then use the new_file and see if volume improves. find out which codec is being used when the file is played, if using SIP : sip show channels I have found that a sound file transcoded to a less compressed code, sounds worse. so a gsm converted to ulaw sounds worse than the gsm. if it is a transcoding issue, get a file of the right codec. --
On Monday 19 November 2007 02:45:17 Abdul wrote:> Hi all, > > I was playing with asterisk .gsm sound file to work for callback. > > But the quality is very poor and sound is very low so we cannot clearly > hear what is sound played. > > Is there any option in asterisk to increase the volume of the IVR files or > any suggestion to get maximum quality of sound?Please downgrade to gcc 4.1. There is a known issue with gcc 4.2. -- Tilghman