15 Dec
2011
15 Dec
'11
11:02 p.m.
Greetings everybody, midi folks in particular;
I have a .mid file that plays using the wrong instruments because it was
composed before GM.
Sent to the built in synth in an audigy2, it plays at normal speed but
wrong instruments.
Loaded into rosegarden (to fix this), it plays at about 1/100th speed.
This doesn't surprise me too much as the originating program dates to 1991
on a TRS-80 Color Computer 3 & GM was something we only got in the then
brand new Sound Canvas's and such. Obviously something in the header
doesn't meet .mid file specs. I did change the internal name from .ume to
.mid in a hex editor, and reloaded but other than the track title now
showing the correct string, no other effect.
In an effort to see what might be wrong, I fired up the print preview which
uses lilypond to generate the 'sheet' music. But from the looks of it, its
going to use 80% of all 4 cores of this phenom for several hours to render,
probably because of this same time error, (transport says its like nearly 3
hours long, but its a bit over 3 mins in actual play time) so the generated
pdf is likely to be 40Gb!
Does anyone know enough about this to tell me where, in rosegarden, to fix
this? Or do I need the hex editor again? Or, heaven forbid, its a bug in
rosegarden (shudder).
Thanks midi folks.
Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: <http://coyoteden.dyndns-free.com:85/gene>
It would seem that evil retreats when forcibly confronted.
-- Yarnek of Excalbia, "The Savage Curtain", stardate
5906.5
16 Dec
16 Dec
12:30 a.m.
On 12/15/2011 11:02 PM, gene heskett wrote:
Greetings everybody, midi folks in particular;
I have a .mid file that plays using the wrong instruments because it was
composed before GM.
Sent to the built in synth in an audigy2, it plays at normal speed but
wrong instruments.
Loaded into rosegarden (to fix this), it plays at about 1/100th speed.
This doesn't surprise me too much as the originating program dates to 1991
on a TRS-80 Color Computer 3& GM was something we only got in the then
brand new Sound Canvas's and such. Obviously something in the header
doesn't meet .mid file specs. I did change the internal name from .ume to
.mid in a hex editor, and reloaded but other than the track title now
showing the correct string, no other effect.
In an effort to see what might be wrong, I fired up the print preview which
uses lilypond to generate the 'sheet' music. But from the looks of it, its
going to use 80% of all 4 cores of this phenom for several hours to render,
probably because of this same time error, (transport says its like nearly 3
hours long, but its a bit over 3 mins in actual play time) so the generated
pdf is likely to be 40Gb!
Does anyone know enough about this to tell me where, in rosegarden, to fix
this? Or do I need the hex editor again? Or, heaven forbid, its a bug in
rosegarden (shudder).
Thanks midi folks.
Cheers, Gene
Can you read the file using frescobaldi for example and set the tempo?
If its not private/copyrighted, post the a link to the file.
Brendan
4:02 a.m.
On Thursday, December 15, 2011 09:18:14 PM Brendan Jones did opine:
On 12/15/2011 11:02 PM, gene heskett wrote:
Frescobaldi is not in the pclos repos, sorry.
I did just install 'abc2midi' which has some two way scripts in it, but I
haven't run it yet.
Greetings everybody, midi folks in particular;
I have a .mid file that plays using the wrong instruments because it
was composed before GM.
Sent to the built in synth in an audigy2, it plays at normal speed but
wrong instruments.
Loaded into rosegarden (to fix this), it plays at about 1/100th speed.
This doesn't surprise me too much as the originating program dates to
1991 on a TRS-80 Color Computer 3& GM was something we only got in
the then brand new Sound Canvas's and such. Obviously something in
the header doesn't meet .mid file specs. I did change the internal
name from .ume to .mid in a hex editor, and reloaded but other than
the track title now showing the correct string, no other effect.
In an effort to see what might be wrong, I fired up the print preview
which uses lilypond to generate the 'sheet' music. But from the
looks of it, its going to use 80% of all 4 cores of this phenom for
several hours to render, probably because of this same time error,
(transport says its like nearly 3 hours long, but its a bit over 3
mins in actual play time) so the generated pdf is likely to be 40Gb!
Does anyone know enough about this to tell me where, in rosegarden, to
fix this? Or do I need the hex editor again? Or, heaven forbid, its
a bug in rosegarden (shudder).
Thanks midi folks.
Cheers, Gene
Can you read the file using frescobaldi for example and set the tempo?
If its not private/copyrighted, post the a link to the
file.
Brendan
I expect it is copyrighted, its somebodies 'moused into Ultimuse-III'
version of Brian Wilson's California Girls. If Cher has her way, it will
never go out of copyright. :(
I just tried midi2abc on it, and get either an "unexpected byte = 0x22" or
a segfault. So either it has problems, or there is a bad byte(s) in this
archive. If that is so, then likely I have several dozen other .ume's that
I can load and re-export as .mid that will have the same set of symptoms.
Thanks Brendan.
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Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: <http://coyoteden.dyndns-free.com:85/gene>
A computer scientist is someone who fixes things that aren't broken.
11:06 a.m.
Hi,
On 15/12/11 22:02, gene heskett wrote:
Greetings everybody, midi folks in particular;
I have a .mid file that plays using the wrong instruments because it was
composed before GM.
Sent to the built in synth in an audigy2, it plays at normal speed but
wrong instruments.
Loaded into rosegarden (to fix this), it plays at about 1/100th speed.
This doesn't surprise me too much as the originating program dates to 1991
on a TRS-80 Color Computer 3& GM was something we only got in the then
brand new Sound Canvas's and such. Obviously something in the header
doesn't meet .mid file specs. I did change the internal name from .ume to
.mid in a hex editor, and reloaded but other than the track title now
showing the correct string, no other effect.
In an effort to see what might be wrong, I fired up the print preview which
uses lilypond to generate the 'sheet' music. But from the looks of it, its
going to use 80% of all 4 cores of this phenom for several hours to render,
probably because of this same time error, (transport says its like nearly 3
hours long, but its a bit over 3 mins in actual play time) so the generated
pdf is likely to be 40Gb!
Does anyone know enough about this to tell me where, in rosegarden, to fix
this? Or do I need the hex editor again? Or, heaven forbid, its a bug in
rosegarden (shudder).
Thanks midi folks.
Cheers, Gene
Maybe something like midicomp [1] could be useful to dig into the file
and see where the tempo problem is generated... It will convert midi
to/from human readable text.
Lorenzo.
[1] https://github.com/markc/midicomp
3:20 p.m.
On Friday, December 16, 2011 08:52:24 AM Lorenzo Sutton did opine:
Hi,
On 15/12/11 22:02, gene heskett wrote:
Thanks, got it and installed it, makes me ask WTH is:
0 TimeSig 4/4 24 8
0 Tempo 428571
0 Arb f8
2 Arb f8
4 Arb f8
6 Arb f8
8 Arb f8
10 Arb f8
12 Arb f8
14 Arb f8
16 Arb f8
18 Arb f8
20 Arb f8
22 Arb f8
24 Arb f8
26 Arb f8
28 Arb f8
30 Arb f8
32 Arb f8
34 Arb f8
all the Arb f8 junk that is not in a good file?
[root@coyote johnny_cash]# /usr/local/bin/midicomp californiaGirls.mid |
grep Arb|wc -l
6818
[root@coyote johnny_cash]# /usr/local/bin/midicomp smas6984.mid |grep Arb|
wc -l
0
The 2nd file is about 26 seconds of Tennessee Flat Top Box from Cash's
AmericanIV cd.
I constructed a new file, using grep -v Arb to remove that stuff, and now
Rosegarden is happy, and plays it at normal speed.
This is a very powerful way to fix buggy .mid files, thank you very much!
Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: <http://coyoteden.dyndns-free.com:85/gene>
Power corrupts. Absolute power is kind of neat.
-- John Lehman, Secretary of the Navy, 1981-1987
Greetings everybody, midi folks in particular;
I have a .mid file that plays using the wrong instruments because it
was composed before GM.
Sent to the built in synth in an audigy2, it plays at normal speed but
wrong instruments.
Loaded into rosegarden (to fix this), it plays at about 1/100th speed.
This doesn't surprise me too much as the originating program dates to
1991 on a TRS-80 Color Computer 3& GM was something we only got in
the then brand new Sound Canvas's and such. Obviously something in
the header doesn't meet .mid file specs. I did change the internal
name from .ume to .mid in a hex editor, and reloaded but other than
the track title now showing the correct string, no other effect.
In an effort to see what might be wrong, I fired up the print preview
which uses lilypond to generate the 'sheet' music. But from the
looks of it, its going to use 80% of all 4 cores of this phenom for
several hours to render, probably because of this same time error,
(transport says its like nearly 3 hours long, but its a bit over 3
mins in actual play time) so the generated pdf is likely to be 40Gb!
Does anyone know enough about this to tell me where, in rosegarden, to
fix this? Or do I need the hex editor again? Or, heaven forbid, its
a bug in rosegarden (shudder).
Thanks midi folks.
Cheers, Gene
Maybe something like midicomp [1] could be useful to dig into the file
and see where the tempo problem is generated... It will convert midi
to/from human readable text.
Lorenzo.
[1] https://github.com/markc/midicomp 
6:46 p.m.
Hi Gene (assuming you're my old Tandy Color Computer Friend) ...
Thanks, got it and installed it, makes me ask WTH is:
0 TimeSig 4/4 24 8
The last field here is the number of midi ticks per quarter note. My
program MMA generates this as 192 (ticks per "beat"). Others use 384.
I'd try changing this and see what happens.
0 Tempo 428571
With this and the BperQ value you can determine the tempo in Beats per
minute. But right now I forget the exact way :) In my programs a tempo
of 120 BPM has a value here of 500000.
In MMA this value is determined by taking the desired beats per minute
(BPM) and dividing that into 6000000. Problem right now is remembering
how i got the 6,000,000 value :)
0 Arb f8
If you look at the source for MF2M or midicomp this is generated by an
"arbitrary length" data message. I've never run into one in my stuff.
If you need to I can dig in some of my manuals and see if I can find
more ... but I'd guess it's some kind of junk.
2 Arb f8
4 Arb f8
HTH, Bob.
--
**** Listen to my CD at http://www.mellowood.ca/music/cedars ****
Bob van der Poel ** Wynndel, British Columbia, CANADA **
EMAIL: bob(a)mellowood.ca
WWW: http://www.mellowood.ca
9:53 p.m.
On Friday, December 16, 2011 03:21:40 PM Bob van der Poel did opine:
That line didn't trigger my curiosity because its exactly the same for a
commercially produced 26 second snippet of Tennessee Flat Top Box that I
grabbed from the J-Cash cd AmericanIV "The man comes around", released
after he died IIRC. He knew his time was near, and some of that is tear-
jerkingly sad, but its pure Johnny Cash too.
What is this MMA? I don't recall reading about it before. Something you
wrote? Humm, found you on google, listened to a snippet of cedars and
bought the cd. I'm a sucker for a well blown Sax! Great stuff IMO.
I stripped all those lines out of the .mid file, works well now except that
rosegarden has locked me up totally, 3 times while playing a song, in the
last 20 hours. 2 different songs. :)
Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: <http://coyoteden.dyndns-free.com:85/gene>
Of course, you UNDERSTAND about the PLAIDS in the SPIN CYCLE --
Hi Gene (assuming you're my old Tandy Color
Computer Friend) ...
I hope so Bob, although its been a decade or so since we last typed at each
other I think. Apparently you are not subscribed to Dennis's coco list at
maltedmedia.com though. Glad to see you got away from the Redmond
monolith.
Thanks, got it
and installed it, makes me ask WTH is:
0 TimeSig 4/4 24 8
The last field here is the number of midi ticks per quarter note. My
program MMA generates this as 192 (ticks per "beat"). Others use 384.
I'd try changing this and see what happens. 0 Tempo 428571
With this and the BperQ value you can determine the tempo in Beats per
minute. But right now I forget the exact way :) In my programs a tempo
of 120 BPM has a value here of 500000.
In MMA this value is determined by taking the desired beats per minute
(BPM) and dividing that into 6000000. Problem right now is remembering
how i got the 6,000,000 value :) 0 Arb f8
If you look at the source for MF2M or midicomp this is generated by an
"arbitrary length" data message. I've never run into one in my stuff.
If you need to I can dig in some of my manuals and see if I can find
more ... but I'd guess it's some kind of junk.
2 Arb f8
4 Arb f8
HTH, Bob.
10:21 p.m.
What is this MMA? I don't recall reading about it
before. Something you
It's "Musical Midi Accompaniment", a program to create MIDI backing
tracks based on chord sequences and rhythm templates. All Python. All
FREE :) Find it at http://www.mellowood.ca/mma
wrote? Humm, found you on google, listened to a
snippet of cedars and
bought the cd. I'm a sucker for a well blown Sax! Great stuff IMO.
And I thank you!
--
**** Listen to my CD at http://www.mellowood.ca/music/cedars ****
Bob van der Poel ** Wynndel, British Columbia, CANADA **
EMAIL: bob(a)mellowood.ca
WWW: http://www.mellowood.ca
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7 comments
4 participants
participants (4)
-
Bob van der Poel -
Brendan Jones -
gene heskett -
Lorenzo Sutton