I have several pieces of audio which I have converted to M4R format to use as a ringtone. The program I am using allows me to convert these using a bitrate of up to 512Kbps, so I have converted these using a high quality. The original recording was high quality. They play great on my computer, but once they are on my iPhone 4S, the quality is poor. I have tried converting from both high quality MP3 and WAV formats to MP4 format. All of them I have done so far sound like being heard on an AM radio and sound very muffled. Am I doing something wrong or does conversion to this format just automatically cause a loss of quality?
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