I Need Help with Sampling!

blackmetalgodz · Post by **blackmetalgodz** » Fri Jul 18, 2008 7:11 pm

Ok, i've successfully made a multisample of a harpsichord sound from a cheap Yamaha children's keyboard but if i just strike the key quickly it only plays a quick sound and ends abruptly, but if i hold down the key it plays the entire sample. On the keyboard the sound originally came from, when you strike a key quickly the sound still plays and fades out...it doesn't end abruptly like on the sampled version. Is there any way i can make the sample keep playing after i let go of the key but get softer and fade out like on the original keyboard?

shrike · Post by **shrike** » Fri Jul 18, 2008 7:37 pm

If you didn't make any program setting to initialized program you assigned your harpsichord to, then it's normal program behavior of that program. You have to make needed program settings for your sound to continue and fade as you want it to. You manage this in P3 Filter, P4 Amp, P7 IFX and P8 MFX (you have to add some reverb) sections in Program edit menu.

Or you can use some preset program in Extreme which has sound shaping similar to your harpsichord and instead of it's preset multisample you can reprogram it to use your multisample. Then everything should work fine with minimum effort. Extreme probably already has some harpsichord program, I don't use that sound so don't know for sure, but check Voice name list or browse through Extreme's sounds.

blackmetalgodz · Post by **blackmetalgodz** » Fri Jul 18, 2008 7:42 pm

ok i will try changing the settings. thanks, i'll let you know if i have any more problems

blackmetalgodz · Post by **blackmetalgodz** » Fri Jul 18, 2008 9:16 pm

ok now i'm having another problem, even though i never got to straighten out the first problem. after i turn off the power and turn it back on the program is still there but then when i try to play it no sound comes out. it works right after i convert it to a program but then after i turn it off and back on no sound comes out. please help

shrike · Post by **shrike** » Fri Jul 18, 2008 9:31 pm

Samples and multisamples are operated in RAM of Extreme and this RAM, as any other RAM, doesn't hold data after power shut down. This means you have to save your multisample/s as .ksc structure (go to MEDIA, tab Save, choose "Save sampling data") and then after boot up you have to load your .ksc data from media to RAM. Unfortunately, there is no way for any auto-load sequence or something similar.

When you make your program out of multisample, you have to save that program in Extreme's internal memory (upper right dropping menu, option to write it internally). It will stay there after power shut down, but in order to prevent erasing that program with some other, save your .pcg (program, combi, global) data to MEDIA also.

Your questions have already been answered many times, browse older posts in this section and read those guides that came with your Extreme, things will be much easier for you.

Regards,

shrike

RVNOak · Post by **RVNOak** » Fri Jul 18, 2008 9:35 pm

I still forget to load my .ksc files from time to time from media mode. That's why I have a checklist I go through before every show I play.

shrike · Post by **shrike** » Fri Jul 18, 2008 9:58 pm

RVNOak,

you can easily simplify this process. Simply make one folder where you will have .ksc, .sng and .pcg files. Screens will remind you what to load.

RVNOak · Post by **RVNOak** » Fri Jul 18, 2008 10:42 pm

That's what I mean, I forget to check the box

blackmetalgodz · Post by **blackmetalgodz** » Sat Jul 19, 2008 6:22 pm

ok well i successfully figured out how to save and load samples but now i have another problem. i was sampling a strings sound from my old keyboard and when i made it loop the sound i started the loop well into the sample and ended it before the original sample ended but when it loops it works fine except you hear a click or a pop whenever the loops starts again. is there any way to fix this and get a continuing loop without a click or pop?

shrike · Post by **shrike** » Sat Jul 19, 2008 9:17 pm

Looping samples properly isn't something one can achieve in few tries. It is long and precise process of finding loop points that match perfectly one with another.

I suggest you to use some PC audio editor because it's easier to see the waveform on PC then on Extreme's screen (which is small compared to PC's screen). There you'll be able to find loop points better.

You can also use Awave Studio (I wrote about it in previous posts) or Seamless Looper (Sharp wrote about it in his posts) - both softwares will try to find loop points automatically, with more or less satisfying results. Browse through older posts or go to "Search".

Triton76 · Post by **Triton76** » Fri Aug 08, 2008 9:20 pm

for your original question, just turn the release knob clockwise til you like the sound then save the program.

For loop points it's trial and error. I find something decent then start zooming in and keep trying

shrike · Post by **shrike** » Sat Aug 09, 2008 8:58 am

For loop points it's trial and error.

This is the main reason why some samples, available from net, are bad. Meaning they do not loop properly, there are glitches or sound interruptions when audited on quality gear.

As for samples used as tone generators:

Loop points have to be set on exact locations where waveform repeats it's own oscillation structure. There is no trial and errors in this process.

While editing some waveform in some audio editor, one has to actually see the waveform in different resolutions, zoom out completely to get some inaccurate point where loop could be set, then zoom all the way in to set it precisely. Wave oscillation has to have exactly the same amplitude structure on the loop start and in the loop end point.

Depending is the wave based on only one frequency or two or more overlapping frequencies, loop points may be set in quarter of a second duration in the case of one frequency sample, or even 5 to 10 seconds of duration in the case of overlapping frequencies (when waveform consists of two frequencies with different octave position). I have samples up to 100 kB, maybe 0,5 seconds long which are perfectly looped. But some other are almost 1 MB and 10 seconds long - so much time were needed for sample to start repeating it's oscillation structure.

Samples as melody samples (some melody chopped and looped to repeat itself) are much easier to be looped and samplers even have crossfade functions which comes in hand while looping.