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by Jperkinski_Archive
bishopdante wrote:In my own experience 320kbps mp3 is not actually necessarily as bad as 16 bit red book CD quality or DAT. I don't disagree with this, especially if the mp3 is encoded from an un-dithered 32-bit floating point source. It can be hard to tell a difference between 16-bit PCM WAV and a well encoded 320kbps mp3. Like most things, mp3 gets a bad wrap when it's poorly done but it's not always terrible. The bigger issue the broker sending mp3s is that they were probably the extremely loud/limited/smashed digital masters (encoded from 16-bit WAVs no less). Whether it's a WAV or mp3, a digital master is likely not going to translate very well to vinyl.Making a vinyl pre-master that is optimized to translate well to vinyl can really go a long ways. This often means removing or greatly easing up on the digital limiting and average loudness to a more natural state. The lacquer cutter/DMM engineer will determine the loudness of the actual vinyl, and often times stuff that is brick-walled with a high RMS level makes for a quieter and less exciting cut. Other loudness factors with vinyl are length of the sides and how much bass info you have/need/want.In recent years, I started to up-sample everything to 96k with Weiss Saracon (or sometimes RX5 or Myriad/Goodhertz) before starting the mastering process. The up-sampling alone of course doesn't make it sound better (and can make it sound worse if you use a mediocre sample rate converter) but the digital and analog processing that follows the up-sampling can have great benefits.This of course also makes it possible to submit a 24-bit/96k WAV vinyl pre-master for lacquer (or DMM) cutting.Most good lacquer cutters and pressing plants will work with this no problem but there are still a few budget/old-school/whatever places out there that ask you to mail them a CD-R which is of course limited to 16-bit/44.1k, but the norm is submitting hi-res digital WAV files via Dropbox/WeTransfer/FTP to whoever is doing the cutting. They can play the 96k audio into the lathe.The other thing is that lacquers (and DMM) can be cut from 24-bit/high sample rate sources. Best to keep things at 24-bit (or even 32-bit floating point) for obvious reasons...plus if the cutting engineer needs to make any adjustments digitally they are not starting from a 16-bit dithered source as any digital adjustments in any modern DAW/app will increase the bit-depth to 32-bit floating.I once wrote this article to help my mastering clients and other engineers not be disappointed with their vinyl pressing after spending thousands of dollars on it:https://theproaudiofiles.com/the-importance-of-lacquer-cutting-for-vinyl/