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NAT samplerate conversion drops 6dB of output level

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NAT samplerate conversion drops 6dB of output level

Postby highvoltage » Mon Mar 11, 2013 3:08 pm

So what's up with this?
It's been acting like this for years now. Is this gonna be addressed?
Im working at 44Khz, and i'd like to convert the 96K programs. Waiting for the Nebula conversion is NOT an option. At all. It halts my workflow so much that i don't even load those programs anymore.

I can manually open and raise every program PAD OUT to +6 dB, but that's a lot of work with today's huge libraries...

I don't even understand how nebula can convert it perfectly inside 'realtime', but NAT messes it up...
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Re: NAT samplerate conversion drops 6dB of output level

Postby enriquesilveti » Tue Mar 12, 2013 5:22 pm

highvoltage wrote:So what's up with this?
It's been acting like this for years now. Is this gonna be addressed?
Im working at 44Khz, and i'd like to convert the 96K programs. Waiting for the Nebula conversion is NOT an option. At all. It halts my workflow so much that i don't even load those programs anymore.

I can manually open and raise every program PAD OUT to +6 dB, but that's a lot of work with today's huge libraries...

I don't even understand how nebula can convert it perfectly inside 'realtime', but NAT messes it up...


Which Nebula product? Which Nebula version? Which NAT product? Which NAT version? Which emulation preset/s?
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Re: NAT samplerate conversion drops 6dB of output level

Postby Cupwise » Sun Mar 17, 2013 3:12 pm

i've noticed this for a long time too. i think it probably does it with any program, any time you convert from 96 to 44.1khz. because i always have to go through and adjust the output level for the 44.1 versions of sets that i make, separately from the 96khz ones. the 44.1khz ones are always lower. and the funny thing about that, is that i'm not even using NAT to do the conversion, i'm using SoX.

what i do is i sample and make a program in 96khz first. then i adjust the output level to be where i want it (close to 0db). then i save that as a program, and i convert the samples to 44.1khz. i use nat to turn crypt the samples into an n2p, and now when i load that into nebula, the output is right around 6db lower.

it seems like using the crypt function in NAT at 44.1khz lowers the level by 6db.
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Re: NAT samplerate conversion drops 6dB of output level

Postby highvoltage » Sun Mar 17, 2013 10:51 pm

enriquesilveti wrote:
Which Nebula product? Which Nebula version? Which NAT product? Which NAT version? Which emulation preset/s?


1.3.505
Both NAT and Nebula 3 Pro

All emulation presets so far.

96->44.1

(and as far as i remember 96->48khz too)
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Re: NAT samplerate conversion drops 6dB of output level

Postby dpclarkson » Thu Apr 04, 2013 11:55 pm

Same here; I first noticed it about 2 years ago, when converting
a couple of libraries (CDSM, AlexB) from 96 to 48K.
All I could do is to adjust the output PAD in the GLOB page manually with each program.
Kind of a hassle, but it's the only way to go I guess.
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