[A] Midronome sends incorrect clock after stopping DAW (24P mode)

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MPrinsen
Posts: 72
Joined: 01 May 2023, 13:42

[A] Midronome sends incorrect clock after stopping DAW (24P mode)

Post by MPrinsen »

STATUS: bug was introduced in Firmware 3.0, on the 24P mode. Will be investigated and solved in a future version.

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Hi Simon,

I use the new 24P mode in 2.90 beta using Ableton Live 12 with the Midronome plugin.

Whenever I now stop Ableton Live 12, the Midronome does also stop as expected. However, it seems to still send a few pulses to my other gear before it sends a stop message, as my other gear then show a BPM of about 29.

This can be annoying whenever I want to start the outboard gear on their own without starting the DAW.

When I Start/Stop the Midronome on its own (without starting the DAW), it works as expected: the other gear will just stop and won't change the tempo.
Simon
Posts: 873
Joined: 09 Jan 2022, 22:08

Re: Midronome sends incorrect clock after stopping DAW (24P mode)

Post by Simon »

Hi Maarten,

Thanks for reporting. A few questions:
  • Is this new with FW 2.90, i.e. this is not the case with FW 2.0?
  • How is your other gear connected to the Midronome, via MIDI?
Thanks
Simon
MPrinsen
Posts: 72
Joined: 01 May 2023, 13:42

Re: Midronome sends incorrect clock after stopping DAW (24P mode)

Post by MPrinsen »

Simon wrote: 30 May 2024, 13:44 Hi Maarten,

Thanks for reporting. A few questions:
  • Is this new with FW 2.90, i.e. this is not the case with FW 2.0?
  • How is your other gear connected to the Midronome, via MIDI?
Thanks
Simon
I think so, but not 100% sure. I compared the 24P mode in 2.90 vs the 2.4.P. mode in 2.0. Maybe the original 24P mode in 2.0 had the same issue already?

I will do some more testing. Is it possible to downgrade to 2.0 without any troubles?
Simon
Posts: 873
Joined: 09 Jan 2022, 22:08

Re: Midronome sends incorrect clock after stopping DAW (24P mode)

Post by Simon »

Thank you Maarten, that would be great!
Yes you can freely upgrade and downgrade, no problem there ;)
MPrinsen
Posts: 72
Joined: 01 May 2023, 13:42

Re: Midronome sends incorrect clock after stopping DAW (24P mode)

Post by MPrinsen »

Hi Simon,

I did some more testing.

First of all, I connected my Midronome directly to my Hapax midi input with a DIN cable.

Then I started playback in my DAW at 130 BPM, using the "old" Midronome plugin to send pulses.

Midronome starts, Hapax starts as well and everything works fine, running at 130 BPM.

Then I stop playback in my DAW, Midronome correctly shows STOP on the display and stops sending clock. Hapax also stops playing, but the tempo drops to about 30 BPM.

Then I disconnected my Hapax and connected my Iridium directly to Midronome instead. Same issue, but the tempo doesn't drop as low as Hapax: it drops to 113 BPM.

It seems that Midronome sends 1 or a few pulse(s) after the STOP message or something, which causes the BPM calculation of the external device to drop.

Then I downgraded Midronome to 2.0 and tested both 24P and 2.4.P. mode and both were doing perfectly: when pressing stop in my DAW, everything stops correctly and the tempo stays at 130 BPM.

So it is an issue introduced since 2.9.0 beta and also present in 3.0.0 (tested both versions - both exactly the same issue).


It is a bit cumbersome, for multiple reasons:

- When I want to save a project or patch etc., often the BPM is also saved within the project/patch. So I have to manually change the tempo back to the BPM I want when saving, or (if possible) I need to save during playback.
- I often switch back and forth between having the DAW as midi clock master to using my hardware as master clock. Obviously this is painful if you need to manually adjust the BPM every time you switch back to your hardware.
- It can cause unwanted audio artefacts, like a time synced delay feedback tripping because of the sudden tempo drop.
- And I'm sure there are more reasons which I can't come up with.

However, it is not a major issue. It would be nice if it will be fixed in the future though.
Simon
Posts: 873
Joined: 09 Jan 2022, 22:08

Re: Midronome sends incorrect clock after stopping DAW (24P mode)

Post by Simon »

Awesome Maarten, thank you, much appreciated. Yes this sounds like a bug introduced in the 3.0 firmware, I'll investigate and get back to you here.

PS: topic moved to bugs category where it belongs ;)
MPrinsen
Posts: 72
Joined: 01 May 2023, 13:42

Re: Midronome sends incorrect clock after stopping DAW (24P mode)

Post by MPrinsen »

Simon wrote: 05 Jun 2024, 21:27 Awesome Maarten, thank you, much appreciated. Yes this sounds like a bug introduced in the 3.0 firmware, I'll investigate and get back to you here.

PS: topic moved to bugs category where it belongs ;)
Awesome!
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