lawajava
This question I think probably is too simple, but here goes...
Are there really noticeable advantages to recording audio tracks in 24 bit and then in the final mix dithering down to 16 bit?
I've been recording audio in 16 bit and it's been sounding great. Even though I have plenty of disk space and RAM I'm trying to get some opinions as to whether I really should be recording the audio tracks in 24 bit.
Here's how I approach it ...
I try to keep my system recording and rendering at the same bit depth through the entire project. So ...... if you use any FX that utilize 32bit processing, in theory, it would be best to record to a 32bit file. Most FX do process in 32bit or higher.
All of my projects are 96kHz/32bits. If I am going to burn the project to CD, I will export it to 44.1kHz/16Bit with dithering. If I am going to create an MP3, I export it at the full project setting
without dither. Then I load the .wav in to Sound Forge and create an MP3 from that file. You do not have to reduce bit depth when creating an MP3 so dithering and converting to 16bit is not necessary. To make the best possible sounding MP3, I always use the original, undithered 96kHz/32bit .wav file.
Another way to look at it is, you never really hear what you record in the digital domain. You hear a facsimile of it ... or, a representation. So, the higher the quality of that representation, the more detail you will get of the signal you recorded.
The other thing to remember is, especially for guitar players and singers, the higher your sample rate, the lower your latency will be.
The other thing that effects all of this is the quality of the A/D D/A converters in your sound card. I while back I did a test using different sample rates at 24bits. I discovered that bass frequencies sounded better on my Fast Track Ultra with the project set to 96kHz as apposed to 44.1kHz. And I also discovered that the high end sounded better when the project was set to 44.1kHz as apposed to 96kHz. I used test tones I created in Sound Forge to do the tests. The differences were minimal, so I stuck with 96kHz because of the lower latency.
If you are recording at 16bits, you are introducing dithering before you even export, especially if you are using ASIO drivers ... they are 24bit. And if it sounds good to you, it just goes to show how minimal all of this really is ... I have lots of recordings I did with a piece of crap onboard sound card embedded on my motherboard and when I throw them on a CD mixed with new stuff I did at 96/32, I can't hear a difference. Especially cruising down the road in the car. So yeah, 24 bit will definitely sound better than 16bit but 32bit is the best choice if your system can handle it ...