23 Aug
2003
23 Aug
'03
5:19 a.m.
Hi
I'm trying to get *any* input/output (MIDIin/audio out) going with
smurf, but didn't succed so far. Is there any trick that one should know
of? I don't need anything fancy, simply to be able to press a note on my
Evolution keyboard and hear the sound comming from smurf as I edit. My
soundcard is set up with ALSA + OSS emulation and works with other apps.
I do realize that smurf is so old it's dead. What are other, more recent
applications for editing soundfonts?
I'm on debian/unstable...
Thanks in advance for any advice.
--
peace, love & harmony
Atte
23 Aug
23 Aug
6:13 a.m.
Smurf isn't really dead, it has just changed name and expanded it's horizon
somewhat.
The new name is Swami, http://swami.sf.net.
/Robert
lördag 23 augusti 2003 09:06 skrev Atte André Jensen:
Hi
I'm trying to get *any* input/output (MIDIin/audio out) going with
smurf, but didn't succed so far. Is there any trick that one should know
of? I don't need anything fancy, simply to be able to press a note on my
Evolution keyboard and hear the sound comming from smurf as I edit. My
soundcard is set up with ALSA + OSS emulation and works with other apps.
I do realize that smurf is so old it's dead. What are other, more recent
applications for editing soundfonts?
I'm on debian/unstable...
Thanks in advance for any advice.
6:41 a.m.
Hallo,
Atte André Jensen hat gesagt: // Atte André Jensen wrote:
I do realize that smurf is so old it's dead. What
are other, more recent
applications for editing soundfonts?
I'm on debian/unstable...
Smurf is now called Swami. I didn't use it, but AFAIK it now uses the
fluidsynth engine to actually play notes.
ciao
--
Frank Barknecht _ ______footils.org__
10:19 a.m.
New subject: [linux-audio-user] It is half audio
If you've been wanting to see this as bad as I have:
http://www.mainconcept.com/mainactor_linux.html
It looks really nice.
8:58 p.m.
On Sat, 23 Aug 2003 10:27:43 +0200
Frank Barknecht <fbar(a)footils.org> wrote:
Hallo,
Atte André Jensen hat gesagt: // Atte André Jensen wrote:
I'll give it a look. Thanks...
--
peace, love & harmony
Atte
I do realize that smurf is so old it's dead.
What are other, more
recent applications for editing soundfonts?
I'm on debian/unstable...
Smurf is now called Swami. I didn't use it, but AFAIK it now uses the
fluidsynth engine to actually play notes. 
24 Aug
24 Aug
3:13 a.m.
New subject: [linux-audio-user] Invert And Mix
I'm making copies of a sound file and I want to confirm by sight and sound
that the original and the copy are bit-for-bit accurate.
Are there any Linux audio applications that would allow me to invert a WAV
file and sum it (mix it) with another file and then display the resulting
waveform? If they're identical I'd get a flat line (the two would sum to
silence); if not I'd hear see and hear noise. With a graphic display I'd
also be able to see if there are any patterns to the errors.
Thanks!
Len Moskowitz
3:52 a.m.
New subject: [linux-audio-user] Invert And Mix
--- Len Moskowitz <vze24hrw(a)verizon.net> wrote:
I'm making copies of a sound file and I want to
confirm by sight and
sound
that the original and the copy are bit-for-bit accurate.
Are there any Linux audio applications that would allow me to invert
a WAV
file and sum it (mix it) with another file and then display the
resulting
waveform? If they're identical I'd get a flat line (the two would
sum to
silence); if not I'd hear see and hear noise. With a graphic display
I'd
also be able to see if there are any patterns to the errors.
For one: Sweep with "swh-plugins".
Select all, copy, "Process-->Inverter", "Edit-->Paste Mix".
Kevin
=====
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forgotten." - Mallarme
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8:05 a.m.
New subject: [linux-audio-user] Invert And Mix
On Sun, 24 Aug 2003 00:59:27 -0400
"Len Moskowitz" <vze24hrw(a)verizon.net> wrote:
I'm making copies of a sound file and I want to
confirm by sight and
sound that the original and the copy are bit-for-bit accurate.
Why not use diff?
--
peace, love & harmony
Atte
8:56 a.m.
New subject: [linux-audio-user] Invert And Mix
On Sun, 24 Aug 2003 11:52:33 +0200
Atte Andr Jensen <atte(a)ballbreaker.dk> wrote:
On Sun, 24 Aug 2003 00:59:27 -0400
"Len Moskowitz" <vze24hrw(a)verizon.net> wrote:
Diff really only works on text files.
However, the diff algorithm is definitely the right idea.
Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo nospam(a)mega-nerd.com (Yes it's valid)
+-----------------------------------------------------------+
"I've got an idea! Sun, Oracle, and IBM hold down MS while Linux
gets to kick them!" -- Lou Grinzo on LinuxToday.com
I'm making copies of a sound file and I want
to confirm by sight and
sound that the original and the copy are bit-for-bit accurate.
Why not use diff?
9:33 a.m.
New subject: [linux-audio-user] Invert And Mix
On Sun, 24 Aug 2003 20:40:42 +1000
Erik de Castro Lopo <erikd-lad(a)mega-nerd.com> wrote:
Diff really only works on text files.
However, the diff algorithm is definitely the right idea.
Not diff you burk!
rsync :
http://samba.anu.edu.au/rsync/tech_report/
Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo nospam(a)mega-nerd.com (Yes it's valid)
+-----------------------------------------------------------+
"Hundreds of thousands of people couldn't care less about Kylix
and what it runs on. It's there for the dying breed of die-hard
Pascal fanatics who missed their 20 year window to migrate to C
and C++." -- Kaz Kylheku in comp.os.linux.development.apps
11:40 a.m.
New subject: [linux-audio-user] Invert And Mix
On Sun, 2003-08-24 at 04:17, Erik de Castro Lopo wrote:
On Sun, 24 Aug 2003 20:40:42 +1000
Erik de Castro Lopo <erikd-lad(a)mega-nerd.com> wrote:
Erik,
How could I make this work for two wave files that are supposed to be
bit-for-bit copies, but one is delayed by a Jack buffer delay? (Or some
other fixed, but unknown, amount.)
Thanks,
Mark
Diff really only works on text files.
However, the diff algorithm is definitely the right idea.
Not diff you burk!
rsync :
http://samba.anu.edu.au/rsync/tech_report/
Erik
2:11 p.m.
New subject: [linux-audio-user] Invert And Mix
Mark wrote:
How could I make this work for two wave files that
are supposed to be
bit-for-bit copies, but one is delayed by a Jack buffer delay? (Or some
other fixed, but unknown, amount.)
Under Windows, I use Wavelab or Cool Edit to trim the initial silence so
that the starting samples in the two files line up.
This morning I'm trying to do the same with Audacity.
Len Moskowitz
2:36 p.m.
New subject: [linux-audio-user] Invert And Mix
On Sun, 2003-08-24 at 08:57, Len Moskowitz wrote:
Mark wrote:
Len,
Yes. I do the same thing by hand with Sound Forge, but that's not
automatic. For instance, I start recording on one machine before I start
playing on the first machine, so I get an unknown amount of opening
silence on the second recording. I'll be sending from one machine to the
other over ADAT, so I expect that the digital data will be identical,
but not time aligned.
I was looking for a solution that was possibly more like 'diff',
where it finds where the differences begin in two text files even if the
line numbers are different. When I read through the rsync description I
didn't see that it would do that, but possibly it does.
Thanks,
Mark
How could I make this work for two wave files
that are supposed to be
bit-for-bit copies, but one is delayed by a Jack buffer delay? (Or some
other fixed, but unknown, amount.)
Under Windows, I use Wavelab or Cool Edit to trim the initial silence so
that the starting samples in the two files line up.
This morning I'm trying to do the same with Audacity.
Len Moskowitz 
3:45 p.m.
New subject: [linux-audio-user] Invert And Mix
On Sun, Aug 24, 2003 at 09:19:56 -0700, Mark Knecht wrote:
I was looking for a solution that was possibly more
like 'diff',
where it finds where the differences begin in two text files even if the
line numbers are different. When I read through the rsync description I
didn't see that it would do that, but possibly it does.
This script turnes a pair of wav files into a pair of text files with one
sample per line and diffs them, it is pretty simple and did the job, but
its not very efficient. I used it to check dodgy spdif cables :)
run it with eg. "./audio-diff file1.wav file2.au"
it doesnt like float wav files though, cos it uses sox.
audio-diff:
-- cut --
#!
sox $1 /tmp/$$-a.dat
sox $2 /tmp/$$-b.dat
diff /tmp/$$-a.dat /tmp/$$-b.dat
rm -f /tmp/$$-a.dat /tmp/$$-b.dat
-- cut --
- Steve
4:23 p.m.
New subject: [linux-audio-user] Invert And Mix
On Sun, 2003-08-24 at 10:31, Steve Harris wrote:
On Sun, Aug 24, 2003 at 09:19:56 -0700, Mark Knecht
wrote:
Steve,
The beauty of the Linux command line! I love it!
Presumably if one file had a few seconds of silence at the start of
end I could just delete that by hand in vi? I don't know how far off in
lines diff can handle looking for a first match, but a few seconds could
end up being 100K lines...
Thanks,
Mark
I was looking for a solution that was possibly
more like 'diff',
where it finds where the differences begin in two text files even if the
line numbers are different. When I read through the rsync description I
didn't see that it would do that, but possibly it does.
This script turnes a pair of wav files into a pair of text files with one
sample per line and diffs them, it is pretty simple and did the job, but
its not very efficient. I used it to check dodgy spdif cables :)
run it with eg. "./audio-diff file1.wav file2.au"
it doesnt like float wav files though, cos it uses sox.
audio-diff:
-- cut --
#!
sox $1 /tmp/$$-a.dat
sox $2 /tmp/$$-b.dat
diff /tmp/$$-a.dat /tmp/$$-b.dat
rm -f /tmp/$$-a.dat /tmp/$$-b.dat
-- cut --
- Steve 
4:35 p.m.
New subject: [linux-audio-user] Invert And Mix
The beauty of the Linux command line! I love it!
Presumably if one file had a few seconds of silence at the start of
end I could just delete that by hand in vi?
How about using dd? You could set the block size ("bs=") based on the
sample size and rate and "seek=" past the silence.
-Peter
25 Aug
25 Aug
7:14 a.m.
New subject: [linux-audio-user] Invert And Mix
On Sun, Aug 24, 2003 at 11:03:43 -0700, Mark Knecht wrote:
Presumably if one file had a few seconds of silence
at the start of
end I could just delete that by hand in vi? I don't know how far off in
lines diff can handle looking for a first match, but a few seconds could
end up being 100K lines...
I think diff would handle it fine, it doesn't have much choice, but you
would get bored paging through all those zeros.
I guess an easy fix would be to crunch up all the 0.0's so that instead of
0.0 0.0
0.0 0.0
...
40000 times
you got
0.0 0.0 40000
(run length encoding) so diff would just sho the difference in the numer,
rather than listing all the lines. It would be a trivial awk script I
think, an exercise for the reader :)
- Steve
10:25 a.m.
New subject: [linux-audio-user] Invert And Mix
--- Steve Harris <S.W.Harris(a)ecs.soton.ac.uk> wrote: > On Sun, Aug
24, 2003 at 11:03:43 -0700, Mark Knecht wrote:
hi,
you could pipe the diff output to 'uniq -c' command here?... with the
-c parameter it counts the input (see manpage). example:
[12] HOME> cat > uneek1
0
0
0
0
0
0
0
0
0
0
1
2
3
[13] HOME> cat > uneek2
1
2
3
[14] HOME> diff uneek1 uneek2
1,10d0
< 0
< 0
< 0
< 0
< 0
< 0
< 0
< 0
< 0
< 0
[15] HOME> diff uneek1 uneek2 |uniq -c
1 1,10d0
10 < 0
a perfect match (with only a starting silence in one of the files)
should result in only one line of counted zero's in the uniq's
results. i think. =)
gr, ALEX
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Presumably
if one file had a few seconds of silence at the
start of
end I could just delete that by hand in vi? I
don't know how far
off in
lines diff can handle looking for a first match,
but a few
seconds could
end up being 100K lines...
I think diff would handle it fine, it doesn't have much choice, but
you would get bored paging through all those zeros.
I guess an easy fix would be to crunch up all the 0.0's so that
instead of
0.0 0.0
0.0 0.0
...
40000 times
you got
0.0 0.0 40000
(run length encoding) so diff would just sho the difference in the
numer, rather than listing all the lines. It would be a trivial
awk script I think, an exercise for the reader :)
- Steve
24 Aug
24 Aug
11:14 a.m.
New subject: [linux-audio-user] Invert And Mix
I see that Audacity offers an invert function as an effect. Does Audacity
edit at the sample level so that I can precisely match up the start of the
files before inverting and summing?
Thanks!
Len Moskowitz
3:46 p.m.
New subject: [linux-audio-user] Invert And Mix
On Sun, Aug 24, 2003 at 09:00:04 -0400, Len Moskowitz wrote:
I see that Audacity offers an invert function as an
effect. Does Audacity
edit at the sample level so that I can precisely match up the start of the
files before inverting and summing?
Yes it does.
- Steve
6:19 p.m.
New subject: [linux-audio-user] Invert And Mix
Steve Harris <S.W.Harris(a)ecs.soton.ac.uk> wrote:
I see that Audacity 1.2.0-pre1 offers vertical zooming while previous
revisions do not. That would make it easier to edit at the sample level.
Len Moskowitz
> I see that Audacity offers an invert function as
an effect. Does
Audacity
> edit at the sample level so that I can precisely
match up the start of
the
files before
inverting and summing?
Yes it does.
7763
days inactive
7765
days old
linux-audio-user@lists.linuxaudio.org
20 comments
11 participants
participants (11)
-
Alex Timmer -
Atte André Jensen -
Erik de Castro Lopo -
Frank Barknecht -
kevin ernste -
Len Moskowitz -
Mark Knecht -
Peter Hutnick -
Robert Jonsson -
RTaylor -
Steve Harris