On Mon, 2007-03-05 at 08:37 +1100, Erik de Castro Lopo wrote: > I would be **very** surprised if it was. For a normalised WAV file > the maximum value would be 1.0 which will correspond to a pcm24 > value of 0x7ffffff. i see no problem with that value, assuming you mean it represent 2^24-1. do you? > The float32 file could also contain a sample > with a value of 1/(2^25) which is smaller than the pcm24 value of > 0x1. Hence, float32 -> pcm24 -> float32 is not lossless. IEEE 32 bit floating point has 1 sign bit and 23 bits of mantissa. i don't see how you can get 1/(2^25) out of that. the small representable value with an effective non-unity exponent (i.e. ignoring the bias stuff) is 1/(2^23), isn't it? awaiting enlightenment ....
