26 Jan
2015
26 Jan
'15
10 p.m.
If a MIDI message is received calling for a voice bank that doesn't exist what
do people think should happen?
Leave everything exactly as it is
Chose a bank closest numerically to the one called for
Switch to a default bank
Any of the above with a warning message
--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
26 Jan
26 Jan
10:21 p.m.
I think that most synths just ignore the message. If you have a debug
on/off switch it might be proper to log it.
On Mon, Jan 26, 2015 at 3:00 PM, Will Godfrey
<willgodfrey(a)musically.me.uk> wrote:
If a MIDI message is received calling for a voice bank that doesn't exist what
do people think should happen?
Leave everything exactly as it is
Chose a bank closest numerically to the one called for
Switch to a default bank
Any of the above with a warning message
--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
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--
**** Listen to my FREE 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
10:22 p.m.
On Mon, 26 Jan 2015, Will Godfrey wrote:
If a MIDI message is received calling for a voice bank
that doesn't exist what
do people think should happen?
Leave everything exactly as it is
Chose a bank closest numerically to the one called for
Switch to a default bank
Any of the above with a warning message
In general, I would expect that if something fails, nothing happens, but I
do get a warning. If on the other hand, the app can be run command line
only for headless use, an option (-q) to fail silently makes sense.
By "nothing happens", I mean that everything remains as is.
My reasoning is that if there is some change in sound, then my first
impression is that my bank change worked. Then if the sound I do get is
not what I expected, I think I have loaded the wrong bank or set of banks
rather than there being something wrong with the bank itself. If the sound
does not change then there is audible feedback that something has not gone
as expected.
These are just my expectations as a user. I don't know if there is a
"right way".
--
Len Ovens
www.ovenwerks.net
10:34 p.m.
On Mon, 26 Jan 2015 14:21:50 -0800 (PST), Len Ovens wrote:
These are just my expectations as a user. I don't
know if there is a
"right way".
Full ACK with Bob and you. The problem is that some synth have got no
banks, but voices, so in practise it happens, that the bank command is
ignored, but anyway a voice number is selected. Some synth btw. don't
come with a display that could output a warning. My Matrix-1000 doesn't
have such a display, OTOH it comes with sound banks, but those sound
banks don't provide general MIDI sounds, so this could be an additional
issue ;).
10:45 p.m.
On Mon, 26 Jan 2015 23:34:34 +0100, Ralf Mardorf wrote:
On Mon, 26 Jan 2015 14:21:50 -0800 (PST), Len Ovens
wrote:
PS: I've got a Casio were the bank select is a very short SysEx. Bank
select in general is an issue, because there are several ways how banks
has to be selected, just the voice select is the same for all synth.
Many synth don't provide general MIDI banks, especially the old synth
that were build before general MIDI was introduced. IOW it's common
that bank select is ignored and voice select will isn't ignored.
Usually a synth does change it's sound, by ignoring he bank select, but
taking care about the MIDI channel's voice select.
These are just my expectations as a user. I
don't know if there is
a "right way".
Full ACK with Bob and you. The problem is that some synth have got no
banks, but voices, so in practise it happens, that the bank command is
ignored, but anyway a voice number is selected. Some synth btw. don't
come with a display that could output a warning. My Matrix-1000
doesn't have such a display, OTOH it comes with sound banks, but
those sound banks don't provide general MIDI sounds, so this could be
an additional issue ;). 
10:58 p.m.
On Mon, Jan 26, 2015 at 10:00:49PM +0000, Will Godfrey wrote:
If a MIDI message is received calling for a voice bank that doesn't exist what
do people think should happen?
Leave everything exactly as it is
Chose a bank closest numerically to the one called for
Switch to a default bank
Any of the above with a warning message
AFAICS, switch to an empty patch (no sound)
-- Alexandre
11:03 p.m.
On Mon, 26 Jan 2015 23:57:57 +0100, Alexandre Ratchov wrote:
On Mon, Jan 26, 2015 at 10:00:49PM +0000, Will Godfrey
wrote:
No, if the voice number doesn't exist, then there's no way to select it
and the synth does use the current sound and not try to select something
that doesn't exist. But I guess the problem is bank select and not
voice select. Sure, if an empty, or INIT VOICE sound exists for the
program change, it will be selected. For a DX7 it would be an annoying
sine wave.
If a MIDI message is received calling for a voice bank that doesn't
exist what do people think should happen?
Leave everything exactly as it is
Chose a bank closest numerically to the one called for
Switch to a default bank
Any of the above with a warning message
AFAICS, switch to an empty patch (no sound)
11:32 p.m.
Summarized:
If a bank doesn't exist, respl. the bank select command is freakish,
it's ignored.
If a "program change" select an existing voice, for what sound bank
ever, the "program change" isn't ignored. The "program change"
will be
selected, even if the bank doesn't exist. If a synth doesn't provide
128 voices, so that even a "program change" from 0 to 127 could fail,
it stays with the current sound and doesn't select the closest
available sound.
That is what I experienced with all averaged and freakish synth since
the 80s when MIDI was invented.
27 Jan
27 Jan
3:15 p.m.
Thanks everyone for your comments. It seems we all pretty much agree - is this a
first for LAU? :)
--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
8:18 a.m.
Will Godfrey wrote:
If a MIDI message is received calling for a voice bank
that doesn't exist what
do people think should happen?
The XG specification thinks that for some banks (SFX), you get no sound,
while for other banks (melodic/drums), the bank change is ignored.
Regards,
Clemens
3382
days inactive
3383
days old
linux-audio-user@lists.linuxaudio.org
11 comments
6 participants
participants (6)
-
Alexandre Ratchov -
Bob van der Poel -
Clemens Ladisch -
Len Ovens -
Ralf Mardorf -
Will Godfrey