I have been searching for some time now regarding what should be the correct settings when digitizing audio (mainly lp transfers) through the line-in input on a Mac Mini Quad Core coming from a receiver’s tape output. I’m currently running 10.4.3 and using Audacity 2.3.1. It’s my understanding that the Audacity settings should be 32 bit float and 44100 Hz for regular CD files so I would assume that the input for the Audio Midi Setup should be the same. Currently, it is set as 24 bit, 48000Hz.
Is there any reason to use 48000 Hz in Audio Midi Setup as well as Audacity since the resulting files will be for CD’s later not DVD’s. Thanks for any input.
Bill, thanks so much for the reply. That is what I was thinking. I’m not sure how the Audio Midi Setup preference ended up on 48000 unlesss it was when working with some DVD/Bluray files.
I realized I had one more question: since Audacity is recommended to use 32 bit float, does that mean the Audio Midi input has to also be set as 32 bit float at 44100 or is the 24 bit integer choice fine? In other words, do both settings have to match in Audio Midi and Audacity? The signal coming in is analog from a receiver so the optical is not being used if that matters.
The analog to digital converter built in to the Mac Mini is probably 16-bit integer. If so there is no advantage to setting up your input (in Audio MIDI Setup) to be other than 16-bit. Either it does the conversion to 32-bit float or Audacity does the conversion to 32-bit float.
– Bill