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jmh

Decoding speed test to find most battery-efficient audio format

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If there was a way to measure how fast the player can decode selected audio file, users could make more informed decision on which audio format to use with their devices. As you know, the faster something can be decoded, the less effective CPU-power its playback requires. I'd love to choose my audio format and settings with knowledge about its effect on battery life.

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I've not done it formally, but I do know that Vorbis -q 0.5 and HE-AAC -q 0.35 has about the same decoding complexity. HE-AAC v2 -q 0.5 will have a much, much higher complexity (battery drains 2.5x as fast)

On my HTC One X (with custom kernel and rom) Vorbis and HE-AAC above will consume about 10% battery per hour.

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