most likely your prompts are 8 kbps u-law, to very your format, just download an existing prompt and run it in vlc player. Go to TOOLS>CODEC INFORMATION (CTRL+J) and this will display what codec is being used, as per below.
|Fig.1 CODEC information in VLC player|
Now, when you have a new prompt and it is not in the same codec as the codec that UCCX/IPIVR uses, it will either NOT play, or sound like a power tool. To convert it, easy use, sound recorder, yes windows. (Apple OS? dunno, mate, try google). No need to download any wav. editing software like audacity or anything.
Open the wav. file in question an save it, but Change the codec, as per below.
|Fig. 2 CODEC conversion using sound recorder|
As you can see I am saving this file CCIT ulaw, 8 kbps sampling (8bit) i.e. 64kbps.
It is that easy!
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