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Emax Sample Release High Pitch Noise

2014-07-05 by bry_204@...

Hi all,

Just wondering if this high pitched noise a the end of this sample is normal? I've noticed if I shorten the length of the MIDI note, the noise will go away. It's like it's some kind of high pitched noise that gets triggered after the same is finished playing. If the key is held down, you hear the noise.

I've attached both versions with the longer notes, and shorter.

https://www.dropbox.com/s/xr3bcyg7tfisci6/909HH_D1V1_Emax_31kHz.wav

https://www.dropbox.com/s/ p8hyskae17i69yw/909HH_D1V1_ Emax_31kHz-1.wav

Re: [emax] Emax Sample Release High Pitch Noise

2014-07-05 by Michael Laursen

It sounds like the Room where the sample is recorded.

  BTW: a good method to check for residues of the valuable bits in a 
sample; is to reverse the sample - in the analog department if I 
remember correctly there is two ways to reverse a sample, digital module 
and somewhere in the analog department that makes it non permanent.  By 
reverseing the sound you can hear if there is unneeded bits in the end.

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On 05-07-2014 05:07, bry_204@... [emax] wrote:
>
> Hi all,
>
> Just wondering if this high pitched noise a the end of this sample is 
> normal? I've noticed if I shorten the length of the MIDI note, the 
> noise will go away. It's like it's some kind of high pitched noise 
> that gets triggered after the same is finished playing. If the key is 
> held down, you hear the noise.
>
> I've attached both versions with the longer notes, and shorter.
>
> https://www.dropbox.com/s/xr3bcyg7tfisci6/909HH_D1V1_Emax_31kHz.wav
>
>
> https://www.dropbox.com/s/ p8hyskae17i69yw/909HH_D1V1_ 
> Emax_31kHz-1.wav 
> <https://www.dropbox.com/s/p8hyskae17i69yw/909HH_D1V1_Emax_31kHz-1.wav>
>
>
>
>
>

Re: [emax] Emax Sample Release High Pitch Noise

2014-07-05 by JAMIE logan

does it happen on all voices have you sampled rubbish at the end the vca in the ssm chip is analog and emu never fitted antialiasing filters in the the emax range in most synths theye have brick wall filters that are set to 10khz to 16khz depending on what frequency range of rom samples used this stops all digital harsh noise that is out side of this frequency range

in the emax your supposed to use the filter cutoff to remove the digital noise as those filters have a range from 40hz to 16khz frequency range just set them until you cant here the noise and also set the filter cutoff to envelope amount have less release than the vca and the filter will cutoff the noise before the vca has finished

if its only happening at the end and not during the sample we can say its not the dac as if it was you would have noise all through the sample does it happen on every voice or just one try truncating the sample emu when truncating leave several samples after the end or loop end for interpolation of the loop se if that stops it or have you already truncated it and it loops perfectly and just causes the noise after the end of the sample

listening to the samples they sound ok with either i would say that you have got some sample crap that you have recorded maybe some noise in the instrument but the shorter version does not sound any shorter than the longer version so move the sample end until you dont get the blip and truncate

your emax sound clear

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On 5 July 2014 09:25, Michael Laursen michael@... [emax] <emax@yahoogroups.com> wrote:

It sounds like the Room where the sample is recorded.

BTW: a good method to check for residues of the valuable bits in a sample; is to reverse the sample - in the analog department if I remember correctly there is two ways to reverse a sample, digital module and somewhere in the analog department that makes it non permanent. By reverseing the sound you can hear if there is unneeded bits in the end.

On 05-07-2014 05:07, bry_204@... [emax] wrote:

Hi all,

Just wondering if this high pitched noise a the end of this sample is normal? I've noticed if I shorten the length of the MIDI note, the noise will go away. It's like it's some kind of high pitched noise that gets triggered after the same is finished playing. If the key is held down, you hear the noise.

I've attached both versions with the longer notes, and shorter.

https://www.dropbox.com/s/xr3bcyg7tfisci6/909HH_D1V1_Emax_31kHz.wav

https://www.dropbox.com/s/ p8hyskae17i69yw/909HH_D1V1_ Emax_31kHz-1.wav

Re: Emax Sample Release High Pitch Noise

2014-07-05 by krikor kouchian

this sounds like regular emax sound to me.
at least mine is acting like that. You will find that if you process the emax sound a lot afterwards they are very noisy, but that’s the way the machine is...

--
http://www.krikor.fr
+33632199413

For Live&Dj bookings contact: cedric@...

Re: Emax Sample Release High Pitch Noise

2014-07-05 by bry_204@...

Hey guys, thanks for all the replies. I tried truncating the sample last night in the Emax, I was able to remove it that way. I also noticed that, it was only a problem when I sampled that hat in at 31 kHz.

I tried sampling it in at different rates, what is real weird is I sampled it in at 41 kHz then dropped it to 31 kHz after internally. When I did it this way, there was no noise. Can't remember if I did this on a kick or that hat, fact is it didn't have the weird high pitch noise when I did it that way. No clue as to why.

I'll try doing the reverse sample as well.

Yea I know about the Emax being noisy, I won't even use the main left/right outputs on mine. Guess I'm too used to modern clean digital, this is my first sampler. I do love the end results it's able to produce though, even just mapping one sample out across an octave and comparing its pitch shifting algorithm compared to pitching the sample in Ableton sounds entirely different. (in a real pleasing way)

Re: [emax] Re: Emax Sample Release High Pitch Noise

2014-07-05 by JAMIE logan

analog filters add analog noise but remeber when every thing was tape and tape had a roll of about 15khz or 30khz as in sampling and why vinyl sounded good the problem is everything is sampled so high today that you pick up even more hiss

the reason for high sample playback rates is not for recording but for computation the faster the frequency range and oversampling the less error is for computing and less aliasing but also in digital system they use fft to remove the partials from the sound the further they go up the keyboard they have less partials so that no aliasing happens this is called band limited and was first used in synths like the dw8000 dwgs system

but if sampling hi hats to make them crunchy because they do have high frequency content raging in the 15khz to 20khz range if you sample them at 22050hz then you will get a natural distortion or crunch as they call it in hip hop

and this distortion can be pleasing to the hear just listen to the mirage 8bit sampler or the EII they sound great unlike the clinical samplers of today that sound sterile

but i can tell you you emax is quiet compared to some i have serviced so i dont see any problems with it and to me its the analog his that makes it sound warm and why so many people are aiming for the old sampler sounds as software just does not hack it

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On 5 July 2014 15:19, bry_204@... [emax] <emax@yahoogroups.com> wrote:

Hey guys, thanks for all the replies. I tried truncating the sample last night in the Emax, I was able to remove it that way. I also noticed that, it was only a problem when I sampled that hat in at 31 kHz.

I tried sampling it in at different rates, what is real weird is I sampled it in at 41 kHz then dropped it to 31 kHz after internally. When I did it this way, there was no noise. Can't remember if I did this on a kick or that hat, fact is it didn't have the weird high pitch noise when I did it that way. No clue as to why.

I'll try doing the reverse sample as well.

Yea I know about the Emax being noisy, I won't even use the main left/right outputs on mine. Guess I'm too used to modern clean digital, this is my first sampler. I do love the end results it's able to produce though, even just mapping one sample out across an octave and comparing its pitch shifting algorithm compared to pitching the sample in Ableton sounds entirely different. (in a real pleasing way)