I??d suggest connecting the V50 out to a midi analyzer to see if the V50 sends an All Notes Off message when you switch the Tx Channel.

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Midi OX on a PC should tell you the truth. Then you can apply a midi filter in between the V50 midi out and Squarp midi in.

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Fr?n: [email protected] <[email protected]> F?r José Juan
Skickat: den 10 november 2022 08:33
Till: [email protected]; emilito7@...
?mne: Re: [YamahaDX] V50 bug (or feature?) in ROM V1.1

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Hello,?

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Is it possible a midi message filtering? You can filter the data that feed the V50 and exclude other than note, aftertouch, modulation wheel .

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Just a suggestion. AFAIK the v50 secuencer accepts external control, and that may mean the appearance of reset messages when receiving sequencer stop midi message.

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Wish it helps

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Cheers

JJ

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El mié, 9 nov 2022 17:26, Yann Kieffer <emilito7@...> escribió:

Hello,

I am the happy, and quite recent, owner of a Yamaha V50.

I bought it from the first-hand owner, and the instrument is in near-perfect condition.

I am using it to create live music, in tandem with an external sequencer - a Squarp Pyramid, to be precise - but my issue should definitely be visible with other sequencers as well!

So it is a DAW-less setup, and I will try to describe it now.

I am using only the V50 and the sequencer, no other piece of gear. The V50 is acting as "master keyboard", meaning that I set "LOCAL" to "Off" in the MIDI settings, and use the keyboard of the V50 to send the note informations to the sequencer. Then the sequencer feeds back the V50 with the note information (both simultaneous, and recorded), and the V50 acts as a multi-timbral instrument, playing different MIDI tracks simultaneously. Of course, I am connecting them by MIDI DIN cables, one cable for each direction.

Now to my particular issue with this setup.

There are several ways to use the Pyramid sequencer; the way I am using it is by recording different phrases into tracks by changing the track on the master keyboard. I am not touching the sequencer; the sequencer is recording on all tracks simultaneously, and I actually use a footswitch to activate/deactivate recording. Although the sequencer is listening to the 16 MIDI channels, I am sending information to only one MIDI channel; and to choose that channel, I switch the MIDI channel on the master keyboard itself.

So in the case of the V50, I am actually changing the MIDI channel named "TCh" in the MIDI settings; Tch could stand for Transmitting Channel I suppose!

When doing so, the synth part of the V50 - the sound generators - actually shuts off at once the very moment I am changing the channel. Of course, it is not very nice when several parts are playing, and they all shut up at once. At least, the music keeps on playing with the next NOTE ON messages coming in, but the resulting sound is definitely not very musical.

I think it weird that the sound generator should stop when switching the Tch channel, especially with LOCAL set to Off. I think that maybe, Yamaha engineers where thinking in the context of LOCAL being on, that in the case that a musician switches channels before letting go or some notes, then the NOTE OFF messages would go to the wrong track, and the notes would be stuck. (I haven't seen a feature in the V50 to stop stuck notes, by the way...) This is why I am referring in the title of this message to a possible feature.

Now, my ROM version is 1.1. I understand that the latest ROM is 1.3. And so, naturally, I am wondering whether this latest ROM features the same bug/feature, or not.

I am referring to the firmware as "ROM", but I have no actual idea whether it is an EPROM or a "mask ROM"; and whether it is socketed or soldered to the board; since I haven't tried opening my V50 yet.

Does anybody know how V1.3 behaves with regard to stopping all notes of the sound engine?

Thank you for reading,
Yann