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Subject: Cutting Silence

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Original Message 1/17 05-Aug-98 @ 06:40 PM - Cutting Silence

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I got this box and I want to sample the drum sounds before I take it back.
I'll record all the hits in a long file in sondforge than i'll individually select each sample
and make its its own file. But tthat file with one sample won't start at the beginning.
I will have silence in the beggining and end. Is there a way in soundforge or any other
program to cut away all silence of a file leaving nothing but the audio data??

t

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Message 2/17 06-Aug-98 @ 01:00 AM - RE: Cutting Silence

Purple Haze

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I've been recording a whole bunch of stuff from the mc505 which I've got to give back one of these days and I've got the same problem.
I was thinking about getting the file(s) with all the hits and drums and stuff in wavesurgeon and cutting it up in there. But that will ofcourse leave a silence after each sample.

Let me know if you find a good solution.

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Message 3/17 06-Aug-98 @ 02:26 AM - RE: Cutting Silence

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O.k I think I have a way to do it but I haven't tested it yet.

Use wavesurgeon or whatever to cut data at the hit so the file starts at the hit... But there is
data in the back right. So reverse the file and use wavesurgeon again. YOu might want to use
cooledit or soundforge or whatever to do a batch reversal of the files once you wavesurgeoned them
then after the second wavesurgeon you should reverse it back to normal using the batch process.
Try.. If somebody got something better than this don't hesitate to submit it!!!

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Message 4/17 06-Aug-98 @ 06:36 AM - RE: Cutting Silence

buggo

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fuck it...jsut get into cool edit or something and trim the samples; it takes only a few seconds per sample. Cool edit has this "save selection" button where you can highlight a selection (a drum hit for example), listen to it, and save just the selection; you don't have to start a new file or anything, you just specify a file name that you wanna save the sound as...

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Message 5/17 06-Aug-98 @ 09:17 AM - RE: Cutting Silence

bill

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hasn't soundforge got an auto-truncate if you can't be bothered? you could get the long file, split it into regions, use batch convert to export to multiple files, then this auto-trim/chop thing.

but i'd do it by hand if i were you. you'll get to know your samples better as well.....and they might not all be the right volume so you can normalise them as well....

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Message 6/17 06-Aug-98 @ 12:31 PM - RE: Cutting Silence

kilo

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the A3000 does that job, on the fly as it records from a disk... heh....so you can go off to the pub while it records 128 mb of samples

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Message 7/17 06-Aug-98 @ 01:12 PM - RE: Cutting Silence

bill

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smug git. i've been saving for the a3000 for all of three weeks now. but i will have the last laugh. trouble is, buying the a3000 will mean selling the emax really, and i don't know if i want to part with it now.....oh well, i guess i'm being stupid, as there's no choice between the two really is there....

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Message 8/17 06-Aug-98 @ 02:37 PM - RE: Cutting Silence

Richie

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Hold on... With soundforge, if you highlight a section of silence then hit the delete button on the keyboard, well believe it or not the highlighted section becomes deleted.

Use the zoom in/out buttons that are at the bottom of the wave display window to, er zoom in and out.

And also, highlight the whole drum sample (including silence at beginning and end) then use the "truncate" function to do it automatically.

Richie

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Message 9/17 06-Aug-98 @ 10:02 PM - RE: Cutting Silence

buggo

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i'm well impressed...your mastery of sound forge is unsurmounted...

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Message 10/17 13-Aug-98 @ 12:14 PM - RE: Cutting Silence

Hilevelt

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Well, I've tried many of the techniques suggested (thanks all); in the end it went like this:

1. recorded about 100 drum samples, each less than a second in length with about 4 seconds in between

2. cut up and saved as individual wav's in wave surgeon.

3. batch truncated in sound forge

4. one by one copied each separate file into one large file (all the samples compiled back together but without the silence)

5. cut up AGAIN in recycle and exported/keymapped to my sampler

This is all well and good, and was much faster than I've been able to do it before (about 1/2 an hour), but the problem's pretty fuckin' obvious. Step 4 is a complete waste and took up the majority of the work, but is necessary for having recycle keymap the whole thing for me, which is way faster than assigning samples one by one, even on an a3000.

So is there any way of auto-assembling the files back together? Possibly even outside of wav editors, after all I've seen programs that join other same-type files together, are these feasible? Does there exist a universal "joiner" for all file types?

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Message 11/17 13-Aug-98 @ 02:20 PM - RE: Cutting Silence

ivan

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There's file joiners as PD programs for almost every computer, from Atari to UNIX. I don't know of any automagic program, but with a bit of scripting it might happen...

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Message 12/17 13-Aug-98 @ 02:51 PM - RE: Cutting Silence

bill

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hilevelt - not sure if this will work because i don't have soundforge on this machine, but....

the big editing jobs in sf work most effeciently if you use regions. i'm guessing here but....

1) record you drum hits as you did - 100 hits, each with what, 4 sec space between?

2) set a region marker at the beginning and end of each sample - you'll get two regions for every sample - one of silence and one of the sample. there might even be a command in soundforge that allows you to "snap" to the next lagr volume.....dunno about that though

3) delete all the silent regions (double click on a region and it just highlights - hit delete). you're left with one big wav file which is split into regions. you can either save this off and go and split it into the parts in recycle OR

a) i'm sure soundforge itself has sampler-dump functions, youshould check these out if you haven't already....

b) because each sample is contained in a discreet region, it's incredibly simple to edit one sample and not the rest - say you wanted reverb on some snares or compression on all the kicks

anyway (this post is getting towards the long side now)
if you wanted to build a large file anyway i think that you can do it in soundforge through the "playlist" function. sorry this is all so vague - i haven't got scsi-connectiion to my sampler - but the moral is that at a guess i would say that you can do all you want (including the splitting samples, truncating, reodering if that took your fancy, exporting to sampler) from soundforge.

or maybe not.....

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Message 13/17 13-Aug-98 @ 04:56 PM - RE: Cutting Silence

===

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With cooledit all you have to save the small files into one big one is just highlight
all the small files and open. The files are one after the other with markers sperating them.

I'm not sure if soundforge does it like that. There maybe some kind of open-append
command

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Message 14/17 13-Aug-98 @ 05:02 PM - RE: Cutting Silence

Richie

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Charmed I'm sure buggo.

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Message 15/17 15-Aug-98 @ 08:29 PM - RE: Cutting Silence

Hilevelt

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PERFECT!!! The cool edit trick worked perfectly, I mapped out 56 drum samples in about 10 minutes (only took so long 'cause I was still working out the details). Thanks no-name!

BTW, checking out a buddy's a3000, it cuts up the sample but doesn't take out all the wasted dead air, so you're going to need to use this trick anway, kilo. That little Yammy trick is unique & superior to recycle or ws in some ways, but it only cuts in predetermined divisions and doesn't "read" the beats.

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Message 16/17 16-Aug-98 @ 01:59 AM - RE: Cutting Silence

kilo

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are you sure\/... anyways... my mates yam,aha has fucked up again with the disk drive....second one.... seems a bit wierd... it told him to change it for a new one, father that getting it fixed again.....any problems with others?

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Message 17/17 16-Aug-98 @ 07:27 AM - RE: Cutting Silence

Hilevelt

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The a3000 apparently leaves the original loop intact, and then pulls divisions out of it. Basically, it's kinda like the amen s/w, it assigns different parts of the sample to midi notes and plays back the sections, so it's not actually cutting anything up (or out) at all. At least that's what I got from the manual, but not actually owning one, I'm obviously not an authority.

Anyway, I've got 3 friends w/ a3000's and no fuck ups yet. I still like my k2rs.

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