Conversion: amr to mp3 converter is a tool which is meant to convert adaptive multi-rate (amr) files to mp3 and inversely this program is useful whether you want to change your favorite mp3 into ringtones for phones or transform your speech recordings to mp3 files simple: this software is incredibly easy to use. Download converter amr to mp3. Amr to mp3 - convert file now view other music file formats technical details the amr codec uses eight source codecs with bit-rates of 122, 102, 795, 740, 670, 590, 515 and 475 kbit/s and has a sampling frequency of 8khz which is filtered to 200-3400 hz.
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