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IP IVR voice Prompt audio format

I'm currently writing an IVR Script, and I want to know if it is posible to change the Prompt audio format from CCITT u-law 8 KHz, 8Bit, Mono 7 kb/sec, to another format like GSM 6.10, and still be playable from the IVR.

Or if there are any cisco java classes that I could call from my IVR script to change the audio format of a file from GSM to CCITT u-law? Or a third party tool CLI that could do the trick that you recommend?

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Community Member

Re: IP IVR voice Prompt audio format

Adding to Jenny's question, Can i use PCM format instead of CCITT U-law ? cause when i convert my PCM files to CCITT U law the Voice quality gets poorer.

Community Member

Re: IP IVR voice Prompt audio format

PCM will not fly. Contact me at matthew_weiner@yahoo.com. I may be able to fix it for you.

Community Member

Re: IP IVR voice Prompt audio format

I do not know if you can play gsm 6.10 from the IVR, but what is the extension of the gsm file type?

Community Member

Re: IP IVR voice Prompt audio format

The extension is ".wav "

I have uploaded the GSM file as a voice prompt, but the ivr server just skips it when it's time to play it... So I'm wondering if there is a codec or a way of telling the server to play the GSM format.

Community Member

Re: IP IVR voice Prompt audio format

You will need to save as ccitt-ulaw from a format that be recognized by the player (check into Sound Forge by Sonic Foundry). I would recommend that you record in 16 bit and save as the ccitt format (8k bandwidth, 8 bit mono). If you need fancy fades (music under voice) or other conversion services I can help you. other than thta go to mono and re-record as 16 bit, then down convert. You will lose some quality, but in a pinch if you cannot re-record, go analog.

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