Voxengo

Creator: Ivo

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Date: Jul 10, 2006, 10:09pm, edited 2 time(s), last modified on Jul 10, 2006, 10:10pm

What does r8Brain Pro do when converting 24 (32) bit files to 16 bit (comparing to the usual dither etc.) ?

Creator: Aleksey Vaneev

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Date: Jul 11, 2006, 3:32am

It applies a plain 2 LS bits TPDF dither. It does not perform noise-shaping.

Creator: riderelli

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Date: Aug 8, 2006, 9:00pm, edited 1 time(s), last modified on Aug 8, 2006, 11:17pm

Aleksey Vaneev: It applies a plain 2 LS bits TPDF dither. It does not perform noise-shaping.

Hi Aleksey,

is it possible to introduce a check-box to disable dithering at all?

I am experimenting various type of dithering and since dither must be applied before 24 to 16 bit truncation to be effective, I would like to have the possibility to not dither twice.

Thank you in advance.

Cheers,

andrea

Creator: Aleksey Vaneev

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Date: Aug 9, 2006, 2:26am

Please use 32-bit floating output. There is no other way to disable dithering.

Creator: riderelli

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Date: Aug 9, 2006, 10:24am, edited 1 time(s), last modified on Aug 9, 2006, 10:35am

Aleksey Vaneev: Please use 32-bit floating output. There is no other way to disable dithering.

So, starting with a 96KHz/24bits track first I have to r8brain convert to 44.1KHz/32bits (floating), then back to DAW diher to 16Bits and finally truncate to 16bits again from DAW. Right?

Thank you again for your advice,

andrea

P.S.: I think such practice (and the relative information about r8brain dither mode) should be mentioned into r8brain help file in the Troubleshooting tips and additional information final section. It should be very helpfull, I think. Thanks!

Creator: Aleksey Vaneev

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Date: Aug 10, 2006, 12:59am

riderelli: So, starting with a 96KHz/24bits track first I have to r8brain convert to 44.1KHz/32bits (floating), then back to DAW diher to 16Bits and finally truncate to 16bits again from DAW. Right?

Yes, this is right.

Creator: riderelli

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Date: Aug 10, 2006, 2:02am

Thank you very much, Aleksey!

Creator: Aleksey Vaneev

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Date: Aug 10, 2006, 6:04am

You are welcome!

Creator: neilwilkes

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Date: Aug 24, 2006, 3:59pm

riderelli: So, starting with a 96KHz/24bits track first I have to r8brain convert to 44.1KHz/32bits (floating), then back to DAW diher to 16Bits and finally truncate to 16bits again from DAW. Right?

Er, no.
Once you are at 32/44.1, you go back into the DAW & dither to 16 bits.
Where does this truncation come from - you will only be truncating if you don't dither from 32FP to 16 fixed.

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Creator: Aleksey Vaneev

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Date: Aug 25, 2006, 12:28am, edited 1 time(s), last modified on Aug 25, 2006, 12:28am

Neil, actually all plug-ins work in 32-fp resolution even if they are dithering. That is why a further truncation to 16 bit is necessary (file bit-depth conversion). Of course, this won't generate truncation artifacts since prior 16-bit dithering was applied.