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Pops, clicks, inconcistency and digital noise

Pops, clicks, inconcistency and digital noise

2004-01-15 by digifran

I am having a desperate time running Yamaha C7 (beatuiful piano 
samples)for EXS24.
I run Win XP on a 1.7ghz pentium 4 processor.
Software: Logic Platinum 5
Initailly I had 256mg RAM

After taking about 20min to load into the sampler, when I pressed 
keys, the samples would play with pops, clicks and other digital 
noise.
I have tweaked the performance of the pc for high-end audio, but to 
no avail.
Time and Space (who sold me the CD) suggested I upgrade my RAM to 
512mg. So I did this (this cost £150) and now am running with a 
whopping 768mg RAM.

The samples load in faster, but when played, I still get digital 
noise, pops and clicks, so it makes them unplayable.

I called the support line again, and now he suggested (again) 
upgrading the RAM to one GIG. This shouldn't be necessary! If this is 
the case, there was nothing in the spec of this CD that said I needed 
ONE GIG RAM! 
I could very well buy this, but I'm afraid the problem will not be 
sorted.

Have you ever experienced this problem? Is there anyway I can tweak 
the PC or Logic so that the samples play clean?

I am exteremely grateful for your help!!
Many thanks


DigiFran

Re: [EXS] Pops, clicks, inconcistency and digital noise

2004-01-15 by Murray McDowall

"digifran" <slinkyfran@...> wrote: 
>
> I am having a desperate time running Yamaha C7 (beatuiful piano 
> samples)for EXS24.


>
> After taking about 20min to load into the sampler, when I pressed 
> keys, the samples would play with pops, clicks and other digital 
> noise.


To use big instruments like this you need to use Exs24's sample streaming
option. Currently EXS24 is trying to load the whole 1 Gig plus instrument into
RAM. 

To find the control panel for Virtual Memory, look in the Options menu on the
EXS24 - and set virtual memory to active. There are some other setting you can
play with too.

Have fun,
Murray

Re: [EXS] playing beautifully... playback something else?

2004-01-15 by darindervish

hey everyone-

                    i just picked up exs and it's sound great! for me it play's beautifully. when i record it seems to be o.k. in the event list, everything looks correct and plays correctly on other instruments but the sampler only plays one or two notes and sometimes nothing and on really slow stuff. again it plays just fine and has no latency for my playing.  on playback i'll have one note to try to line up a loops gate time with the measure and it just plays for whole length of the song and sometimes not at all. it happen to me in reason where recording and playback controlled two different perameters?

                                         peace to everyone -

                                                            darin

Re: [EXS] Pops, clicks, inconcistency and digital noise

2004-01-15 by Murray McDowall

At 05:24 PM 1/15/04 +0000, you wrote: 
>
> you are awesome, thank you, thank you...it is working much, much better...
> still, every once in a while it skips a sample, but hey!


The audio sample files for this instrument should ideally be on a second
audio;/samples drive but, whatever drive they are on,  you should defrag the
drive you install the files onto before you install a big instrument like that
and then again after. 

The idea is to get all the files laid down on the drive next to each other and
have no fragmented files - they will almost certainly cause a click.

Regards,
M

Re: [EXS] Pops, clicks, inconcistency and digital noise

2004-01-16 by Murray McDowall

At 09:07 PM 1/15/04 +0000, you wrote: 
>
> another question: I got the samples playing ok, but when recording, I get the
> message "disk is too slow or overload etc..." any ideas how I can get round
> this?


First thing to do is go into the Virtual Memory control panel pick Extensive
and Slow - that will maximise the preloaded buffer for each file. Once you are
using Virtual Memory you are working your hard disk very hard whenever the song
is playing. That is another reason why it is good to put your samples on a
separate drive - if it goes down you still have your system and can just
replace the drive and reinstall your samples,.

Using a  7200 RPM ATA disk will help. Are you using one - your system P4 1.7 is
a bit slow. P4 Willamette (slower than 2 GHz) processors suck actually
especially if you have PC133 RAM. If you want high performance you might need
an upgrade. 

Regards,
M

RE: [EXS] Pops, clicks, inconcistency and digital noise

2004-01-16 by Francis Rodino

-----Original Message-----
Show quoted textHide quoted text
From: Murray McDowall [mailto:murraymc@...] 


>First thing to do is go into the Virtual Memory control panel pick
>Extensive and Slow - that will maximise the preloaded buffer for each file. 
> Onceyou are using Virtual Memory you are working your hard disk very hard
> whenever the song
>is playing. That is another reason why it is good to put your samples on a
>separate drive - if it goes down you still have your system and can just
>replace the drive and reinstall your samples,.

>Regards,
>M

Thanks will try this.can you tell me, in the audio driver section in
logic, when would I click (or un-click)  large process buffer and large
disk buffer?
Are these significant features?
 
Many thanks
df

RE: [EXS] Pops, clicks, inconcistency and digital noise

2004-01-16 by Murray McDowall

At 04:28 PM 1/16/04 +0000, you wrote: 

>
> Thanks will try this.can you tell me, in the audio driver section in
> logic, when would I click (or un-click)  large process buffer and large
> disk buffer?
> Are these significant features?


Disk buffer is for audio tracks - storing more of your audio files in RAM when
a "large" buffer is selected. You will lose RAM if you choose this but work
your disk a little more efficiently. This will not effect your EXS24 playback
AFAIK. 

Process buffer - to work at low latencies ( eg 128/256 samples) I think you
might need a small buffer setting - if you are getting crackles try smaller. At
larger latencies you might get more out of your CPU choosing a medium of large
Processor buffer. 

There are a lot of variables in play though if you are running a bunch of 3rd
party plugins. I recently had an issue with a plugin which caused crackles with
some parameter settings unless the processor buffer was set to Small. This was
fixed after some correspondence with the developer.

You could simply try the different settings on a tune -- one where the
processor is maxing out -- and see if you can get a bit more out of it on one
setting compared to another. 

You could do a search of the list archives to find some more discussion of this
stuff but I haven't seen much myself. There is a paucity of info from Emagic on
anything like this.

Regards,
M

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