MQA works by folding and compressing high-resolution audio files. According to Wikipedia, MQA encoding hierarchically compresses the relatively little energy in the higher frequency bands into data streams that are embedded in the lower frequency bands using proprietary dithering techniques, allowing for an apparent reduction in sample rate and hence file size. It's not lossless, but it's claimed to be better than lossless. In this case, converting the MQA files to a more universal format like FLAC, MP3, or OGG is recommended. However, it becomes pointless if you have an MQA sound source but do not have a player/device that can decode MQA.

To experience better sound quality than a CD, you need to use a specialized MQA Core Decoder, MQA Renderer, or MQA Full Decoder for MQA decoding, that is, reopening the folded data to reveal the original master recording. The biggest advantage of MQA is the ability to enjoy high-resolution sound sources with a smaller file size. Unlike lossless audio formats, MQA offers an even better audio quality by folding high-frequency and ultra-high-frequency data above CD sound quality, and hiding it within general frequency data, such as FLAC, ALAC, or CDDA. Master Quality Authenticated, aka MQA, is an audio technology that uses a proprietary algorithm to compress hi-res files to fit within the same size as a CD quality file. One technology that has been making waves in this space is MQA. While audiophiles have always appreciated high-quality audio, the advent of streaming services like TIDAL and has made it accessible to a broader audience. In recent years, high-resolution audio has become a buzzword in the music industry.

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