When using the built-in iTunes conversion algorithm, will it treat the parent file (the AAC 320 (VBR) file) as a lossless file, and then downsample to creat the AAC 320 version?
Since this is not a lossless file, no.
Namely, I just don't want to lose any audio quality when doing a conversion -
Going from lossy to lossy you will lose audio quality. Now, whether you can actually hear that loss or not is up for debate, but cross converting from lossy to lossy is generally not a good idea if your purpose is to not lose quality. Your best course of action is to re-rip the tracks from the CDs.
Hi Michael --
Thanks for the response. I figured that any invocation of the iTunes conversion tool would result in a down-sampled file. I was hoping for a smarter algorithm that could detect the inherent bit-rate of the source file, but if the algorithm inherently downsample regardless, then yes, I will need to just re-import, since I don't want to lose audio quality.
I figured that any invocation of the iTunes conversion tool would result in a down-sampled file..... if the algorithm inherently downsample regardless, then yes, I will need to just re-import, since I don't want to lose audio quality.
Format conversion in iTunes does not down-sample the file. Unless you force a change by setting the options, the sample rate remains whatever it was, which is usually 44.1 kHz.
As Michael notes, converting one lossy format to another may entail a loss of audio quality. Is there some reason you don't just keep the AAC/320 VBR files that you have?
Thanks for the reply, I appreciate it. I was mainly just wondering for my own sake - and I'm kind of (yes, I'll admit) OCD; I have decided to downsample from lossless to save a bit on laptop hard drive space, but I still connect to high end speakers (either through wireless into high-end DAC converters, or directly) so it's nice to have as high of quality of a downsampled file for the audio quality.
Thanks again for the reply!