Sound Amplifier and the new Dynamics Processing Effect
summary
Sound Amplifier is an Android P accessibility service that uses the new Dynamics Processing effect to boost soft speech and tame loud noise in real time, demonstrated improving intelligibility over noisy backgrounds. The effect is a four-stage pipeline (pre-EQ, multiband compressor, post-EQ, linked limiter) with per-channel, per-band controls via a config-builder API in android.media.audiofx, exposes two user sliders (tone and boost) that map to hundreds of presets, ships in AOSP but is OEM-replaceable, and works on headphones.
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chapters (9)
- 0:00Intro
- 0:20What is Sound Amplifier
- 8:02Human Ratio
- 13:01Dynamics Processing Effect
- 16:56Use Cases
- 25:46Multiband compressor
- 29:45Limiter
- 31:31More comments
- 32:59Summary
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