Rust/Wasm AAC audio encoder claims 6x speedup over FFmpeg in head-to-head benchmarks

wavefnx · x · 2026-09-17

A developer shipped a Rust/Wasm AAC audio encoder, noting AAC is often missing in many environments where it's usually accessed via FFmpeg. Combined with their own MP4 parser, they now have a complete audio pipeline.

Benchmarks vs FFmpeg: 56.6ms vs 365.2ms, 138.5ms vs 659.7ms, 98.4ms vs 636ms. The author also discusses SNR nuances in audio encoding, arguing sound quality matters more than speed — though their implementation reportedly delivers both.

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