On Sun, 2014-03-23 at 09:41 -0500, Jeremiah Benham wrote: > I may be a bit confused. I thought this was all dependant upon how the > modwheel is set on the midi controller.
Well, it doesn't matter how you last left the mod wheel - only changes to the mod wheel that you make after starting Denemo are registered. > When I do midi input I put the modwheel half way if I was in the key > of c and then move it up if I start to see flats when sharps are > expected and visa versa. I was not sure if that is how it is supposed > to work but I think I remember Richard talking about this once so I > tried it and it worked. yes, the default callback for the mod wheel does exactly that. I didn't mention it because there is a threading bug with audio output which makes it crash on occasions. (It makes notes of different pitches to let you know which range of sharps/flats you have set, higher ones for sharper ranges). In fact I recently had this threading bug bite me while entering figured bass by MIDI filter, which also uses a timer to turn off a midi note. I discovered something remarkable: as I was running under gdb the segfault from the threading bug left me at the gdb prompt. I executed the following: call gtk_main() this also returned me to the prompt (the note was still playing) but after a couple more invocations the program was running again and I could save my work. I didn't write to the list about this yet, as I don't want to give the impression that this is something a typical user is likely to encounter, but it is a serious worry. I have been over the threading code, as best I can and did not see where the trouble lay. The crash occurs in the function scheme_output_midi_bytes() where the data are nonsensical - it is in a timer callback to turn of a note that has been started earlier. If anyone can review the code to see where the threading bug arises I would sleep easier at night. Richard _______________________________________________ Denemo-devel mailing list [email protected] https://lists.gnu.org/mailman/listinfo/denemo-devel
