Meta's AI Audio Codec Achieves 10x Better Compression Than MP3

Meta's AI Audio Codec Achieves 10x Better Compression Than MP3

By Marcus Bennett

November 20, 2024 at 04:49 AM

Meta has developed an AI-powered audio compression method called 'EnCodec' that claims to achieve 10x better compression than MP3 while maintaining high audio quality.

Person using audio production software

Person using audio production software

EnCodec uses a three-part system to compress audio:

  • An encoder that converts uncompressed audio into a lower frame rate representation
  • A quantizer that compresses the signal while preserving essential information
  • A decoder that reconstructs the audio in real-time using neural networks

Audio compression comparison graph

Audio compression comparison graph

The system employs discriminators in a cat-and-mouse game to ensure the reconstructed audio remains perceptually similar to the original. It's the first neural network-based compression system capable of handling 48 kHz stereo audio, slightly higher than CD quality (44.1 kHz).

Primary applications include:

  • Improving voice call quality over poor network connections
  • Enabling high-fidelity audio in metaverse experiences
  • Delivering quality audio with minimal bandwidth requirements

While still in research phase, EnCodec represents a significant advancement in audio compression technology that could revolutionize digital audio transmission and storage.

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