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RE: Importing & Exporting Repeater WAVs



Excellent post, Tim.

I'm only writing because I wanted to echo that I, too, would like to be 
able
to use Acid loops in Repeater, and vice versa.

Are you working on this, Damon?

Kevin

> I eventually want to compose loops in ACID and import them onto tracks in
> Repeater to use in live applications.  I would also like to dump
> my Repeater
> loops onto my PC and add them to a loop library.  But this is much easier
> imagined than done (especially when I am new to both ACID and Repeater!)
>
> First, I tried to export files from my Repeater to my PC.  Once I
> got my CFC
> reader/writer installed it was no problem at all - just drag and
> drop.  But
> the first thing I noticed was a discrepancy between Repeater's
> loop lengths
> and ACID's calculation of the loop length.  They are way off and I can't
> seem to find a pattern that explains the discrepancy.  I included some
> numbers to see if one of you brainiacs can figure it out.
>
> Also, when I play Repeater WAVs in ACID (as well as n-Track)
> there is space
> at the end of the loop that makes it basically unusable.  This is
> sometimes
> accompanied by a 'click' sound that is definitely not very musical.  Of
> course, I could edit the file to make it sound like a seamless loop, but
> then I would end up with a file that is no longer the same size as the
> original - which prevents, as you may know, Repeater from being able read
> the file.  So if want to be able to use a loop on Repeater again, I 
>better
> not touch it.  But if I want to be able to use it in ACID, I have to edit
> it.
>
> I wrote down the info that Repeater displays about a loop and
> compared it to
> how ACID and n-Track view the WAV files that comprise the loop.  Like I
> mentioned, there is a big difference.  Here are the Repeater stats for 
>the
> first 10 loops on my CFC card.  All bpm's are native tempos.
> Please keep in
> mind that I used loop multiply and resample on some tracks, but
> that doesn't
> explain the discontinuity.
>
>              Repeater Loop/Track Stats
> Folder    #bars  time sig   bpm   #tracks
>
> LOOP1      32       4/4     93.0     4
> LOOP2       4       3/4     90.3     4
> LOOP3       2       4/4    131.0     1
> LOOP4       8       4/4     69.8     2
> LOOP5       2       3/4     88.6     2
> LOOP6       1       7/8     94.7     2
> LOOP7       4       3/4     84.0     3
> LOOP8       4       4/4    107.0     1
> LOOP9       4       4/4    119.9     1
> LOOP10      5       2/4    161.0     4
>
>
> And here are the WAV's as I saw them on my computer:
>
>
>      WAV         General WAV info    ACID analysis of WAV
> (loop#.track#)   length     size       beats       bpm
>
>     1.1          00:06:04    527k       8          78.3
>     1.2          01:22:25   7135k       ?           ?
>     1.3          01:22:25   7135k       ?           ?
>     1.4          01:22:25   7135k       ?           ?
>
>     2.1          00:05:00    431k       8          95.7
>     2.2          00:04:08    367k       8         112.4
>     2.3          00:08:05    703k      16         117.5
>     2.4          00:08:05    703k      16         117.5
>
>     3.1          00:04:19    399k       8         103.4
>
>     4.1          00:07:24    671k      16         123.1
>     4.2          00:27:26   2399k      64         137.8
>
>     5.1          00:05:00    431k       8          95.7
>     5.2          00:04:08    367k       8         112.4
>
>     6.1          00:05:12    463k       8          89.1
>     6.2          00:04:19    399k       8         103.4
>
>     7.1          00:04:19    399k       8         103.4
>     7.2          00:05:06    447k       8          92.3
>     7.3          00:04:25    415k       8          99.4
>
>     8.3          00:10:01    863k      16          95.7
>
>     9.1          00:08:27    767k      16         107.7
>     9.2          00:08:27    767k      16         107.7
>
>    10.1          00:03:27    335k       8         123.1
>    10.2          00:04:19    399k       8         103.4
>    10.3          00:04:03    351k       8         117.5
>    10.4          00:04:03    351k       8         117.5
>
>
> I noticed that a couple of WAVs were actually the same exact
> size/length as
> a WAV in another loop.  Ah!  My lucky break.  I could test WAV 'imports'
> that were not only the same file size, but they were generated on 
>Repeater
> itself.
>
> First I simply copied and pasted the same WAV and renamed it with another
> track number.  For instance, in LOOP3 I copied TRACK1.wav and renamed the
> copy TRACK2.wav.  This didn't work.  I assume that's because the new 
>track
> had no track info file.
>
> Then I resampled track 1 to track 2.  This gave me two tracks of the same
> size and two Repeater generated info files to match each track.
> I took the
> CFC out and connected it to my PC.  Then I copied TRACK1.wav from LOOP7
> (which is exactly the same size), renamed it TRACK2.wav and
> dropped it into
> the LOOP3 folder.  Bingo.  It played back without any alteration in pitch
> and generally sounded like the same audio sample.  But it still
> didn't line
> up properly.  I can only attribute this to the fact that I was still 
>using
> the info file that was created for LOOP3.  According to Repeater,
> LOOP3 is 2
> bars of 4/4 @ 131bpm and LOOP7 is 4 bars of 3/4 @ 84bpm.  So even though
> ACID saw both files as the same length, number of beats and bpm, Repeater
> saw a difference.  And the difference that was distinguished by Repeater
> affected the LPA trim points which affected the way the WAV played back.
>
> Also, tracks 3 and 4 of loop 10 are resamples of track 1 and 2,
> respectively, but they are a different size than either of the originals.
> Weird.  Even weirder is that they are the *same* size, even though the
> originals were different.  Very weird.  Perhaps resamples are new
> recordings
> of the original LPA'd audio files (i.e. they are the same size
> because both
> originals are bound to the trim points of the loop during playback).  But
> then why does track 1 sound the same as the track 3 resample on the
> Repeater?  And why do both files share the same awkward
> hesitation in ACID?
> That's downright super freaky weird.
>
> So my questions remain:
>
> Is there a way to edit the proprietary files in the loop folders to 
>handle
> imported WAVs?
>
> Is there a way to create these files to accompany ACID loops for
> import into
> Repeater?
>
> Is there a way to alter the WAV file on Repeater so that the start and 
>end
> points of the loop are the same as the start and endpoints of the
> WAV?  This
> would allow for accurate playback on my PC without having to change the
> file.
>
> Is it possible to 'Repeaterize' ACIDized WAVs for play back on a 
>Repeater?
>
> I'm also wondering if there is a looping program that lets you specify 
>the
> *exact* file size to 1/100th of a second?  Does ACID Pro do this?
>
> Anywho, I'm tired and need to sleep.  I'm still buzzing from the events 
>in
> New York and DC.  However, I think I'm finally exhausted enough to go lie
> down.  I hope this info can be of use to someone.  That's why I posted 
>it.
> I am actually more confused than anything (which is probably
> obvious to the
> discriminating reader).  But my efforts are sincere. :)
>
> --
> Tim
>