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Fixed in Unity 5.1.2
Audio clip volume is normalized when "Force to Mono" is enabled on a 16-bit stereo wav
- Includes 2 pairs of audio clips that demonstrate the issue.
- Notice the difference in volume between each clip and its "forcemono" equivalent, even though the source wav data is exactly the same.
To reproduce from scratch:
- Create a 16-bit stereo wav file with very low volume; import it into Unity.
- View and listen to audio preview; note the volume is low.
- Check "Force to Mono" in the clip settings and click Apply.
- View and listen to audio preview; note the volume has been normalized.
To further investigate:
- Attenuate or amplify the original clip data; reimport into Unity.
- View and listen to audio preview with "Force to Mono" enabled; note the volume appears exactly the same as in previous steps (even though the wav has been modified).
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