We are running CCM 3.2. Recently we had a company professionally record a CD for us. It sounds great until I Drop it into Call Manger and the file gets converted. The Music saounds fine, but the speakers voice is Very lispy. It's very annoying. Does anyone have ideas of what I can do. Sorry, kind of new to posting, please let me know of further needed information.
If you look in the tftppath folder of your CCM installation you will see the converted MOH .WAV files. CCM converts your nice professionally recorded 16bit stereo music into ALAW, ULAW and G.729 compressed 8bit mono formats for streaming compatibility to VoIP devices. Audio compression works by removing high and low end frequencies which results in a "washy" sound on high frequencies, hence the "lisp" you are hearing on the speakers voice.
Check the codec that the phone is using when listening to MOH.
You would probably need a dedicated streaming device to improve the quality of the MOH.
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