Sound Amplifier is a new accessibility service built to demonstrate the capability of Android’s new Dynamics Processing Effect in the Audio Framework. Sound Amplifier helps users focus on the sounds they want to listen to regardless of poor acoustic conditions or distractive noise. Dynamics Processing offers powerful audio post-processing with a flexible API that allows developers to adjust an audio stream’s dynamic range and frequency response, with the same precision sound engineers can have with high end mixing boards. The API can be used to improve any listening experience as demonstrated by the Sound Amplifier. It has a multi-stage processing architecture including dual multi-band equalizers, multi-band compression, and a linked limiter. This session includes demos of the Sound Amplifier and dives into the API, as well as other potential uses by third party developers of the effect.
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