I have done it but not with just the phone. I play back the voice record as I record it in sound recorder on my computer. It creates the file in wav format. The you need to adjust it using dbpoweramp to 8000hz 8bit 1 channel mono

I've never heard that before. I know the i730 fairly well and don't think it's possible. It woudln't be much use if you could anyways, try using voice record and record a song. Somehow it filters out the music and actually just gets the voice.

I heard that you could use the voice record on the i730 and make a ringtone out of it.... Does anyone know about how to do that or if it is possible to do? Or does anyone know about how to do something like that?