Hi Ben,
Thank you for your reply. I understand what you said but here is what I have done. In order to determine if checking normalization did anything at all, I set the RMS level to 70% (maximum) and to 1% (0% minimum) converting the very same file from .WMA to .WAV. On playing the two different Wave files using Windows Media Player, Windows Media Center or RealPlayer on Windows 7.0 Professional there is absolutely no discernible change in volume. The file converted to 1% is 84 bytes longer than the one converted to 70% so something has changed. I put both Wave files back into Switch and played them there but again no difference. This is for playing over a telephone line, so on conversion to .wav I am using the recommended settings: PCM uncompressed and 8000 Hz, 8 bits, Mono. I don't know if that would make any difference or that I am converting to .WAV. I believe I first checked this at the default setting for converting to .WAV which had higher values for the second set of settings (Hz, bits) as well as being stereo but again no difference. I am totally mystified here and would greatly appreciate your response again.
Mark