Hello,
Here's a problem which is driving me crazy. I've spent a couple dozen hours experimenting and also searching the Web to see if anyone else has encountered it. No luck in either case thus far.
I have a score with three parts: dulcimer, upright bass and percussion. During playback, the first note of the score is missed by some instruments, but completely at random. Sometimes, all three parts play correctly from the start, and at other times some of the three instruments skip their first note, in various combinations. I've not been able to detect the pattern.
The three parts have been quantized and I've made sure the Play Head starts from zero. Still, erratically the very first note of any or all of the parts fails to play.
By the way, I've tried different hardware synths (two different Casios, Yamaha DB50XG, Behringer Odyssey, etc.). The problem also shows up when using Fluidsynth as a plugin. And, I've also swapped different USB MIDI adapters, from two different manufacturers.
Having said that, aseqdump indicates the data seems to flow properly:
----Here's what I see when starting up aseqdump:
----And here's what appears for the dulcimer part when I play the composition and stop it after several notes:
The first note is note 60, velocity 127, and is a dotted quarter note.
I should mention that I only recently changed over from Cakewalk running on a DOS computer (!) to Linux Mint. Everything worked well on the old computer for almost 30 years, and I was hoping that Qtractor would do the same. I'm still a neophyte on Qtractor, though, and fairly new to Linux Mint as well.
If it makes a difference, I'm using the Qtractor 1.2.0-4.1 appimage, and my OS is:
Kernel: 6.8.0-47-generic arch: x86_64 bits: 64 compiler: gcc v: 13.2.0 clocksource: acpi_pm
Desktop: Xfce v: 4.18.1 tk: Gtk v: 3.24.41 wm: xfwm4 v: 4.18.0 with: xfce4-panel
tools: light-locker vt: 7 dm: LightDM v: 1.30.0 Distro: Linux Mint 22 Wilma
base: Ubuntu 24.04 noble
I do have a work-around, but it really disrupts the workflow. If I shift all the tracks over one measure and insert a dummy first note at the start of the first measure, then everything works. I can trim off the phony first measure when done recording. But I'd rather things just work properly in the first place like they did with Cakewalk.
So, any suggestions?
Thomas Henry
Whoopee!
Whoopee!
After finishing my post, above, I noticed there was a new version of Qtractor available. I downloaded the AppImage and tried it out at once.
Unbelievably, it fixes the problem I was having with an initial note being missed, at least so far. I'll keep testing, but this seems well worked out now.
A lesson learned: always check for new revisions. And of course, a big thank-you to the generous developer for his dedication to this admirable project!
Thomas Henry
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