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clipping.png (1,793 bytes) |
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What do you expect? Do you prefer the signal being clamped to the available range? Is there a benefit compared to not wrapping around? The same happens for 24bit or any integer file-format for values above 0dBFS. |
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I think clamping to available range would be preferable as it sounds less unpleasant. Many audio CDs are mastered now with deliberate clipping, but I suspect usually without this wraparound effect ;-) |
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Could the levels exceeding 0 dB just be leveled to 0 dB. This would be consistent to how other DAWs work and because of this users probably expect it to work this way. The distortion caused by driving the signal above 0 dB would also be quickly heard and corrected by the user. |
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Would it be possible to just do a range conversion ? Max value 32bit = Max value 16bit. This would always keep the maximum available dynamic range. Everything going above would be clipped as usual - no inversion. |
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> Max value 32bit = Max value 16bit Nominal maximum in 32 bit float is +/- 1.0, but it can go many orders of magnitude above that without clipping (at least until it reaches the DAC). In integer format +/- 1 gives you only one bit of resolution. |
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> Could the levels exceeding 0 dB just be leveled to 0 dB. That would be appropriate for integer formats, but not floating point. |
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If at all, this has to happen right before the data goes to disk, ideally in libsndfile. |
- Anonymous
