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And More Sample Rate Questions

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And More Sample Rate Questions

Postby richie43 » Wed Mar 30, 2011 5:11 am

I apologize for re-asking some things, but I am trying to wrap my head around using Nebula and sample rate conversion. I have purchased quite a few 3rd party libraries and have noticed that they use a variety of sample rates. If I typically record in 48kHz and want to use some Nebula libraries that are 44.1, 48, or 96 (or a combination of all), do I need to re-sample my audio to match the library setting? I would hope that Nebula's internal sampling engine would take care of this. I have not noticed any degradation of quality thus far, but I am wondering what other peoples opinions are. To manually re-sample each audio file seems to be a real work-flow killer. And what about mixing libraries that have sample rates differing from one another? Any opinions or experience with this would be greatly appreciated. By the way, I think that the Nebula concept and sound is brilliant, I just want to get the most I can from the great libraries out there.
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Re: And More Sample Rate Questions

Postby giancarlo » Wed Mar 30, 2011 5:48 am

what configuration for RATE CNV are you using now?
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Re: And More Sample Rate Questions

Postby richie43 » Wed Mar 30, 2011 6:25 am

Not to sound like an idiot, but I am not sure what the RATE CNV refers to. I am well versed in digital audio but fairly new to this awesome Nebula. Can you help me understand? And thanks for the quick response, it's quite impressive and reassuring when the developer personally responds!
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Re: And More Sample Rate Questions

Postby dpclarkson » Wed Mar 30, 2011 9:54 am

I have converted just about every library
that I own to 48khz in NAT.
This speeds up the loading-times dramatically,
when you're working at the same sampling-rate.
A batch conversion of all your audiofiles would
be ok too. It's a matter of choice.
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Re: And More Sample Rate Questions

Postby giancarlo » Wed Mar 30, 2011 11:50 am

richie43 wrote:Not to sound like an idiot, but I am not sure what the RATE CNV refers to. I am well versed in digital audio but fairly new to this awesome Nebula. Can you help me understand? And thanks for the quick response, it's quite impressive and reassuring when the developer personally responds!


maybe you are not aware about it, but in MAST page of nebula there is a RATE CNV parameter. Increase it, than push save. Nebula will start converting your library at loading time. Loading time will be slower but you don't need to do anything else.
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Re: And More Sample Rate Questions

Postby richie43 » Wed Mar 30, 2011 2:49 pm

dpclarkson wrote:I have converted just about every library
that I own to 48khz in NAT.
This speeds up the loading-times dramatically,
when you're working at the same sampling-rate.

I would love it if someone could guide me through this process.... Anyone?
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Re: And More Sample Rate Questions

Postby richie43 » Wed Mar 30, 2011 2:50 pm

giancarlo wrote:maybe you are not aware about it, but in MAST page of nebula there is a RATE CNV parameter. Increase it, than push save. Nebula will start converting your library at loading time. Loading time will be slower but you don't need to do anything else.

Ok, I understand this. Any suggestions to what value I increase this to?
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Re: And More Sample Rate Questions

Postby giancarlo » Wed Mar 30, 2011 4:39 pm

greater than the kernel size of the program you want to convert!
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Re: And More Sample Rate Questions

Postby richie43 » Wed Mar 30, 2011 6:51 pm

giancarlo wrote:greater than the kernel size of the program you want to convert!


Ok, the RATE CNV is measured in milliseconds. So how does this relate to kernel size? I randomly set the CNV to a high number, 5500ms, and the conversion is happening, but what do the parameters mean? Can I go lower and still get the conversion benefits? I guess I need you to explain in "stupid person" language. As I said, I am not new to digital audio, but I am very new to Nebula. I understand how to use Nebula but I do not understand the "inner workings". Thanks.
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Re: And More Sample Rate Questions

Postby Barendse » Wed Mar 30, 2011 7:20 pm

When you work at 44.1 put the slider about halfway. This will do for most programs. When you set it lower some reverb programs won't convert well.
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