no need to dither when exporting to 24-bit from 32 bit float session?

[Artcutech]

reading up on it I'm fairly sure there is no reason why exporting final master from a 32-bit float session at 24 bit would need to be dithered, but just wanted to double check that in theory, exporting a 32-bit and a 24-bit final master from a 32-bit float session would be identical?

[Tarekith]

Maybe not bit for bit identical, but as close as you’re ever going to get. If I was really paranoid I would use triangular either with noise shaping turned off, but most of the time I don’t bother with dithering at all.

[Artcutech]

Maybe not bit for bit identical, but as close as you’re ever going to get. If I was really paranoid I would use triangular either with noise shaping turned off, but most of the time I don’t bother with dithering at all.

Thanks, makes sense.

[jlgrimes]

reading up on it I'm fairly sure there is no reason why exporting final master from a 32-bit float session at 24 bit would need to be dithered, but just wanted to double check that in theory, exporting a 32-bit and a 24-bit final master from a 32-bit float session would be identical?

The dithering noise (or distortion from truncation) would most likely be so low anyways to really affect anything for 24 bit.

It already is fairly low when doing 16 bit conversions.