12/31/2023 0 Comments 32 lives logic pro x![]() ![]() There is a commercial use for 32bit float audio files, and that is file exchange. Although there are now 32bit fixed-point AD converter (I don't know why yet, besides bragging rights). 24bit fix-point has a theoretical dynamic range of 144dB which is greater than the noise floor of the electrical components of an audio interface. ![]() There are no workable use cases for 32 bits transductors in the physical world. While I understand your request for 32 bits I/O audio encoding file exchanges. I suppose my bottom line is: I don't worry about things I can't control unless the actual recordings are clipped. Yes, it would be handy if Logic could import the 32 bit float files and not convert them but it's never been a problem for me as the final output song will always come down to a fixed bit depth. 32 bit float comes into its own whilst still inside the DAW. There's little point in having an extended dynamic range if it's not used. Last song I mixed I had to start with all faders (aside from the master) at -5dbfs. If the signals are hot (but not clipped) I pull all the faders down. If they are clipped then there's little chance of me doing a decent mix. the recordings are either clipped or they are not clipped. If the recorded tracks are not clipping at 32 bit float, they won't clip at 24 bit fixed. ![]() The quietest gear these days is still noisier than a 24 bit noise floor. The good news is that it doesn't need to be perfect. The thing with bit depth is that it will never ever be perfect no matter how much computer CPU cycles you throw at it unless the bit depth became infinite. Internally in logic, gains can be passed between plug-ins much safer as it's very easy to clip a plug-in. The greater dynamic range enables you to keep the tracking gains way lower and not suffer any noise. Your bit depth gives you greater dynamic range and you need that extended dynamic range as it is a multitrack recordiing. If you're at the point where you're being sent or are recording so hot that you are clipping your outputs then you need to grasp your gain structure. It has to, at some point come out into the real world and pass through your DA to get to the real world. On playback you can push the tracks way way louder, actually into the red but here's the catch. When you make a recording your AD would clip anything over 0dbfs. There are several parts in getting to grips with this. The higher the bit depth the greater the dynamic range, and the lower your noise floor. ![]() The bit depth is basically your noise floor. It's never been a problem for me when people send me songs to mix. I suspect it may have something to do with Midi types ( type 0, 1, 2 etc) which was a problem in the 90s and we had to convert all midi types to type 0 in order for it to trigger anything. I hope that the problem can be understood and I do apologize- It is rather difficult to explain this say bug in text. I can assign software instruments to that midi track (which works fine) in logic but the external gear doesn't play them, even though if I were to play along during playback, in logic's piano roll it shows that keys are being pressed by me but only the ones I play make a sound and not the ones that have been imported from the downloaded midi file. The midi notes played by me and the ones that I got from the net look identical on the logic pro, the piano roll opens both in an identical way, showing where it is placed and colors them based on velocity. However, the Moog doesn't respond if I drag midi notes from the downloaded midi file into that very same Moog line. I then try to record my own midi track on that same line using the Moog, making sure that it is communicating with logic - It works, it records the midi notes and it plays them when I playback that segment. I choose a bass sound on the Moog and drag the bass midi track from the now laid down midi track into that line hoping that the Moog responds - it doesn't. I then create an external instrument track, I hook up a Moog sub25 and connect it via USB to logic. The logic pro would then create several tracks corresponding to the instruments in that midi file and lays them down neatly. I download a midi file from the internet - say Sweet Dreams and import that file into logic pro. External gear doesn't respond to some downloaded midi files in Logic Pro X I think it's easier if I explain it in a story-like manner. ![]()
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