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  #1  
Old 01-20-2011, 07:52 AM
DJ Hellfire DJ Hellfire is offline
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Question Dithering...

Trying to understand more about dithering. Now, say I have all my stereo bounces of my project imported into a new session for mastering, the session is 24/48 like the original sessions of all the songs. I set up all my limiters and everything with Dithering turned on (to 16). Now once I have all the songs properly set and level overall and I bounce all the songs to a new audio track in the same session. Are those songs properly dithered? Or do you have to actually use Bounce to disk for true dithering to take place?
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  #2  
Old 01-20-2011, 09:07 AM
scenicrecords scenicrecords is offline
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Default Re: Dithering...

There are two ways to do this:

1. If you are recording back to another track, your file will still be at 24bit 48kHz. You would want to apply dither only if you are looking to go to 16bit 44.1kHz for CD. Once you record back to another track with your limiter, etc. (with dithering off in your limiter) you will then have your final track at 24bit 48kHz. You can then export the region as a file and select 16 bit 44.1kHz.

From the Reference Guide (Page 288):

In the Export Selected dialog, set the File Type,
Format, Bit Depth, and Sample Rate. In addition,
specify the Conversion Quality, and choose the
Destination Directory.
When you export regions to a lower bit depth,
Dither (with or without Noise Shaping) is applied
as shown in Table 16.
The Dither used for any conversion is the
Digidesign Dither plug-in (with or without
Noise Shaping enabled, as noted in Table 16).

Table 16. Dither and Noise Shaping with Export
Selected dialog

Bit Depth Dither Noise Shaping
24-bit to 24-bit No No
16-bit to 24-bit No No
24-bit to 16-bit Yes Yes
16-bit to 16-bit No No


2. Another option is to use the Bounce to Disk feature with the Dithering on in your Limiter and bouncing to the correct bit depth and sample rate. Double check your tops and tails of each track after your bounces.
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  #3  
Old 01-20-2011, 09:29 AM
DJ Hellfire DJ Hellfire is offline
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Default Re: Dithering...

Thanks! Yea, I know about the dither on export. That's how I've been doing it. I guess my second question then is whether it's better to use the dither in export, or better to use a limiters built in dither? Or does it not matter?

I guess what's throwing all this confusion in my head is some people saying they don't like BTD, because it's inaccurate or doesn't sound as good, and that they rather bounce to audio track. Then I see people say use the built in dither of the limiter. But then how do you dither with the limiter if you don't BTD???!!! Just too many different opinions I'm seeing I guess!
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Old 01-20-2011, 10:19 AM
Dorian Green Dorian Green is offline
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Default Re: Dithering...

I'm used to use Wavelab as my mastering stage software...But the process is the same in Protools.
First of all BTD your mixdown ay 48/24.
Open a new session with the same SR/BD
Import your bounced Stereo Track in that new session
Open a new Master track...Insert the plugin you need to do your mastering and at the very last insert put your Limiter/Dither or only Dither.Set it for 16bit truncation.
Bounce to disk..again...This time setting bounce options to 44.1/16.
That's it.
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Old 01-20-2011, 11:19 AM
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PT Lover PT Lover is offline
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Default Re: Dithering...

Quote:
Originally Posted by DJ Hellfire View Post
Trying to understand more about dithering. Now, say I have all my stereo bounces of my project imported into a new session for mastering, the session is 24/48 like the original sessions of all the songs. I set up all my limiters and everything with Dithering turned on (to 16). Now once I have all the songs properly set and level overall and I bounce all the songs to a new audio track in the same session. Are those songs properly dithered? Or do you have to actually use Bounce to disk for true dithering to take place?
I dither during export. No hassle.
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  #6  
Old 01-20-2011, 02:52 PM
DJ Hellfire DJ Hellfire is offline
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Default Re: Dithering...

Quote:
Originally Posted by PT Lover View Post
I dither during export. No hassle.
This is how I have always done it. But all these other "methods" get confusing!

Thanks guys!
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