I've had that or a similar problem a lot - but only with ZynAddSubFX. I can
hardly open old projects that use Zyn because of this issue.


2014-07-11 16:09 GMT+02:00 Tobiasz Karoń <unf...@gmail.com>:

> Hey!
>
> A strange problem that I've been fighting with from times to times have
> just come back:
>
> I've been working on one track, when suddenly my left master channel got a
> strange DC offset visible on the ossciloscope, and no signal present (so I
> got just the right channel).
>
> After another while I've got the same thing in the right channel too:
>
> I've tried:
>
> 1. Muting FX-channels and instruments to find the "guilty signal source"
> 2. Using DC offset remover on master
> 3. Rendering to 32-bit and looking for the signal there
>
> No luck.
>
> Here's what it looks like:
>
> ​
>
> ​
> Binary analysis of a 32-bit WAV file shows that the file is simply full of
> nothing - there's no signal at all.
>
> $ cat unfa-CafeMusic-02-04.wav | hd
>> 00000000  52 49 46 46 7e 50 a5 21  57 41 56 45 66 6d 74 20
>> |RIFF~P.!WAVEfmt |
>> 00000010  10 00 00 00 03 00 02 00  88 58 01 00 40 c4 0a 00  |.........X..@
>> ...|
>> 00000020  08 00 20 00 66 61 63 74  04 00 00 00 00 aa 34 04  |..
>> .fact......4.|
>> 00000030  4c 49 53 54 26 00 00 00  49 4e 46 4f 49 53 46 54
>> |LIST&...INFOISFT|
>> 00000040  1a 00 00 00 4c 4d 4d 53  20 28 6c 69 62 73 6e 64  |....LMMS
>> (libsnd|
>> 00000050  66 69 6c 65 2d 31 2e 30  2e 32 35 29 00 00 50 45
>> |file-1.0.25)..PE|
>> 00000060  41 4b 18 00 00 00 01 00  00 00 21 e9 bf 53 f6 cd
>> |AK........!..S..|
>> 00000070  62 15 00 01 00 00 f6 cd  62 15 00 01 00 00 64 61
>> |b.......b.....da|
>> 00000080  74 61 00 50 a5 21 ff ff  ff ff ff ff ff ff ff ff
>> |ta.P.!..........|
>> 00000090  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
>> |................|
>> *
>> 00000880  ff ff ff ff ff ff f6 cd  62 15 f6 cd 62 15 47 78
>> |........b...b.Gx|
>> 00000890  62 15 47 78 62 15 a8 22  62 15 a8 22 62 15 1c cd
>> |b.Gxb.."b.."b...|
>> 000008a0  61 15 1c cd 61 15 9f 77  61 15 9f 77 61 15 34 22
>> |a...a..wa..wa.4"|
>> 000008b0  61 15 34 22 61 15 d9 cc  60 15 d9 cc 60 15 90 77
>> |a.4"a...`...`..w|
>> 000008c0  60 15 90 77 60 15 58 22  60 15 58 22 60 15 33 cd
>> |`..w`.X"`.X"`.3.|
>> 000008d0  5f 15 33 cd 5f 15 1f 78  5f 15 1f 78 5f 15 1d 23
>> |_.3._..x_..x_..#|
>> 000008e0  5f 15 1d 23 5f 15 2b ce  5e 15 2b ce 5e 15 49 79
>> |_..#_.+.^.+.^.Iy|
>> 000008f0  5e 15 49 79 5e 15 78 24  5e 15 78 24 5e 15 ff ff
>> |^.Iy^.x$^.x$^...|
>> 00000900  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
>> |................|
>> *
>> 21a55086
>>
> If you don't know: * - marks regions of empty data. The file size was
> about 500 MB (then somehow it grew to 1.5 GB), but all actual data fits in
> this email. I've 7-zipped it and attached too - it's under 200 kb.
>
> I'm attaching the project files - please open it and let me know what
> happens.
>
> On my system the file 02-04 doesn't sound, while the version 02-03 plays
> without any issues.
>
> I'm using LMMS 1.0.0 (I've just notified Falk TX to update to 1.0.2).
>
>
> I don't know if it's a problem of any plugin, or what. It sometimes
> happens in the middle of the track - I hae the signal to some point and
> then - void appears.
>
> I wonder if this is already fixed or still affects LMMS users.
>
> PS:
> I wanted to record a video showing what's up but it turned out unbearably
> distored right after LMMS finishes loading the project, so watch it if you
> want, but turn it down very quietly before you start:
> http://youtu.be/YgXWC91DWVc
>
> --
> Tobiasz *unfa*
>
> -----BEGIN GEEK CODE BLOCK-----
> Version: 3.1
> GIT/MU/P d->-- s+:-(--)> a? C++(+++)>$ ULC+(++)>$ !P? L+++>++++$ E? W++>$
> !N-? !o--? K-? !w-- O? !M-- V? PS++ PE++ !Y+ !PGP+? !t(+) 5? !X !R+ tv
> b+>+++ DI>+ D+ G e h-->- !r y--()
> ------END GEEK CODE BLOCK------
>
>
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