You can adjust the sample rate, bitrate, video codec and even channels for the stereo.
Vidmore Video Converter is a versatile and professional M4A to MP3 converter that supports more than 200 file formats and devices. The Ultimate Method to Convert M4A to MP3 Here are 3 frequently used methods you should know as below. In order to adjust the different parameters for MP3, you should choose the professional M4A to MP3 converters. Part 2: 4 Easy Methods to Convert M4A Audio to MP3