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Topic: MicroMPX (FM radio multiplex STL codec) (Read 460 times) previous topic - next topic
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MicroMPX (FM radio multiplex STL codec)

The codec encodes an FM stereo multiplex signal (mono audio + pilot tone, stereo difference signal, RDS) at 320 kbps, and there's also a lower bitrate version (MicroMPX+) which supports bitrates down to 176 kbps.
The authors of the codec claim that its artifacts, when they occur, are designed to be masked by imperfect FM radio reception.
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Please be aware that, especially at the lowest bitrates, certain benefits of MicroMPX might not be fully available. MicroMPX was made specifically for FM, which means that if it cannot encode at full quality, it adds artifacts that sound like FM reception artifacts, instead of way more annoying MP3/AAC-like artifacts.
https://www.thimeo.com/micrompx/
https://www.telosalliance.com/uploads/Omnia%20Products/Telos%20Alliance-NAB16-MPX%20Press%20Conference.pdf