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

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Issue

Table of Contents

At present, I’m currently using AudioTrack that is passing on audio data from the native layer and playing it back to.

It appears that I could use OpenSL ES in the native layer, instead in place of AudioTrack using Java. What are the supposed benefits that OpenSL ES has over to AudioTrack?

Solution

OpenSL ES

Advantages:

  1. API for Low-Level Audio on Android
  2. Device independent on Android phones
  3. Good for gaming

Disadvantages:

  1. Only supported on 2.3+ OS

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AudioTrack:

Advantages:

  1. API at High Level

Disadvantages:

  1. It works with Java layer. Native code must call Javalayer in order to listen audio.

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Conclusion

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