androidandroid-ndkaudiotrackopensl

What should be reasons to use OpenSL ES instead of AudioTrack in Android?

Currently I'm using AudioTrack passing to it audio data from native layer to play.

It seems I can use OpenSL ES in the native layer instead of AudioTrack in Java. What are the supposed advantages OpenSL ES gives as opposed to AudioTrack?

Solution

  • OpenSL ES:

    Advantages:

    1. Low Level Audio API in Android
    2. Device Independent on Android Phones
    3. Good for Gaming

    Disadvantages:

    1. Supports only on 2.3+ os

    AudioTrack:

    Advantages:

    1. High Level API

    Disadvantages:

    1. Works on Java layer and Native code has to call javalayer to play audio.