I recently took a short training workshop and we were using an earlier version of Audacity. Now back at work i’m using 2.1.1 and I created a file at a sample rate of 96000Hz and 24bit but in the export options I only see 16bit and 32bit float. Is it ok to export to a higher bit rate? Where did 24 bit go?
Is it bad to create the file at 24bit and export at 32bit float?
It’s not necessarily “bad”, but do you have a reason for it?
Normally, floating-point is used in certain circumstances for as a temporary format. For example, Audacity does it’s internal processing in floating-point. The main advantage for a temporary file is that it can go over 0dBFS.
It’s rarely used as a final or release format and there’s no reason to do so. There are no audio DACs that go over 0dB and very-few floating-point audio DACs, and none of them have true floating-point resolution/accuracy. In a computer, the driver will automatically convert the data to 16-bit or 24-bit integer as appropriate for the particular soundcard/DAC.