Re: [Rosegarden-devel] midi playback issue

[vlada S. <vl...@ro...>]

On Thu, 26 Aug 2004 04:27:58 -0400, Silvan  
<dmm...@us...> wrote:

> On Wednesday 25 August 2004 01:46 pm, vlada Savic wrote:
>
>> sometimes, when playing midi composition, rg has some kind of strange
>> sustain like effect! Panic button helps. This usually happens when  
>> messing
>> around with device assignment from sudio, or device manager.
>> I know this is up to rg! Happens when using hardware and soft synth.
>
> Sounds like you're getting a note started, which sends a note on, and  
> then
> flipping to another channel.  The note off gets send to the wrong  
> channel,
> and the original note continues to drone forever.  That's just MIDI for  
> you.
> Or else you've got the sustain stuck.  That happens rather easily too.
> Especially if you're jumping around in a composition that uses the  
> sustain
> pedal frequently.

There's no sustain effect at all; nor program/channel change! Stop doesn't  
help. Sustain-like effect remains of the same tracks after stop/rew! As I  
have said, only panic make things better (at least for some time).

>> Notation expands segments itself. 5 beat note in 4/4 bar. sometimes  
>> you're
>> unable to reassign instruments to channel (I really dont have a clue
>> what's wrong here - tracks 1 and 2 have the same channel, then "move"  
>> trk
>> 2 to different channel and reassign to diff. instrument - now trk1 have
>> the same instrument as 2 , or something... It is hardly reproducable,  
>> but
>> annoying; I haven't find any workaround yet, except copying of segments,
>> deleting track... and so on).... blah, blah
>
> Could it be user error?  It took me a long time to finally get it  
> through my
> head that the instrument and the channel don't necessarily correspond to  
> each
> other.  You assign to a device.  A device has 16 instruments.  Every
> instrument gets a program and a channel.  You can have instrument 6  
> assigned
> to play out channel 14 if you want.
>
> It sounds like you're assigning tracks 1 and 2 to the same instrument.   
> Call
> it instrument 3.  By default, instrument 3 plays on channel 3.  Now you  
> go to
> track 2 and change the channel dial to 5, and then you find that track 1  
> has
> also changed to 5.  Because tracks 1 and 2 are both playing through
> instrument 3, which is playing out channel 5.

Back to school!! :) Is that chapter of your manual finished? I have been  
always thinking of channel as "older" than instrument :(

>> But, I must admit that everything related to audio is much better now
>> (except softsynths - that's probably 455MHz CPU related :-) )!
>
> Good grief.  You want to ignore what I just said about running three  
> copies of
> QSynth then.  It had my 2 GHz machine bogged to a crawl.

I MUST ignore what you've said! grrr :(

Vlada

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