For the records / archive:
24 bits gives you a dynamic range to record a needle drop as well as a jet plane take off at a very close distance,
WITHOUT CHANGING THE RECORDING LEVELS.
(assuming you have a mic that is capable of it as well)
not many people acutally would do this.
24 bits is for situations that require unattended recording,
(like recording huge amount of channels by one person), or to make sure incidental peaks aren’t overmodulated (smalling with doors etc…)
This requires of course to set the recording level way lower than normal.
Now this works all swell, and with todays storage the increased size / bandwith is not an issue anymore, but to have any improvement over 16 bits, you indeed have to record at way lower levels than normal.
This means a lot more work in post, as most of the stuff needs a huge gain, and for most output you have to do a downsample to 16 bit anyways.
In other words, for most common jobs 24 bits is overkill, but can be handy if you follow the rules. Again, if you record 24 bits, record 20 dB lower than you would do normally.
Bouke
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