The Documentary Sound Guy Posted March 17 Report Share Posted March 17 1 hour ago, Jim Feeley said: I think it's reasonably helpful to make clear(ish) that at 0, 32-bit files match with 24-bit and 16-bit files. Is this actually defined in a spec somewhere? I'm inclined to think that one possible reason why the original poster needed 30dB of gain is because there *isn't* a defined way to align levels between 32-bit and 24-bit. My understanding is that every DAW has adopted a different convention for this conversion, and that this is part of the reason why it's such a headache to export levels "correctly" when dealing with 32-bit in post. I would love a better understanding of what's happening here. I believe using 32-bit float to represent PCM audio has been done since the '90s, (at least, I remember being able to save it in that format with the audio recorder in Win95), but I'm not sure if there's any official spec for how the format (or any digital format, 24-bit included) is supposed to translate into other formats. Don't we typically calibrate our meters so that +4dbV (aka line level or "analogue 0") = -20dbFS precisely *because* there isn't a spec to do this? (i.e. we've adopted that equivalence by industry convention precisely because there isn't actually any "official" spec that tells us how loud it's supposed to be? Quote Link to comment Share on other sites More sharing options...
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