Re: [Hydrogen-devel] Beta version of Hydrogen and Midi Clock.

Philipp Müller Wed, 13 Aug 2025 13:29:06 -0700

Hey Jazi,

Hmm.. Hard to tell. There were a lot of changes for 2.0 and since it isnot feature-complete yet, it is not properly tested on all platforms either.

Could you increase the log level [1]? Maybe this will give us some extraclues. Failing to connect to the audio interface itself should not bethe cause of the crash. Do these [::connect] errors occur in Hydrogen1.2.X as well?

Also, does the crash happen during startup or while you are performing aspecific user interaction? Is Hydrogen already receiving MIDI messagesduring startup? If so, could you try without.

I'll check using my Windows laptop too. But I do attend a course thisweek and may not have time to do so till Sunday/Monday.


Thanks for testing and sorry about the trouble. All the best,

Phil

[1]https://github.com/hydrogen-music/hydrogen/wiki/Accessing-log-messages-of-Hydrogen#windows


On 8/12/25 22:25, jazi4--- via Hydrogen-devel wrote:

Hi Phil ,
Great to hear about the Midi Clock.

Unfortunately Hydrogen-2.0.0-pre-alpha-8b2e673ba-win64.exeinstallation on Windows 10

would not start - here is the contents of the logfile:

(E) [Filesystem::drumkit_list] drumkit [Jazz Funk Kit] is not usable

(E) [PortAudioDriver::connect] Can't use device 'Speakers (FocusriteUsb Audio)', using default stream(E) [PortAudioDriver::connect] Can't use device 'Speakers (FocusriteUsb Audio)', using default stream(E) [PortAudioDriver::connect] Can't use device 'Speakers (FocusriteUsb Audio)', using default stream(E) [::static int H2Core::AudioEngine::audioEngine_process(uint32_t,void*)] [PortAudio|PortMidi] Failed to lock audioEngine in allowed 10ms, missed buffer

(E) [::void handleFatalSignal(int)] Fatal signal 11
Stop logger

(I installed it into a different folder from existing Hydrogen v1.2.6Installation)Tried 3 different audio outputs and they all had the same error "Can'tuse device 'Speakers (xxxx)', using default stream"

Any idea what I could do to get it to run withour Error?

Kind Regards
Jazi

On 09/08/2025 at 6:37 PM, "Philipp Müller" <[email protected]> wrote:

Hey Jazi,

I have a first draft of a prototype featuring a MIDI clock
implementation (AppImage [1], macOS [2], Windows exe [3]).

There is most probably still some work to do in order to make the
synchronization real tight. Hydrogen is not yet designed to offer
real time support of MIDI messages [4].

Could you check how synchronization is handled at your end? I
managed to borrow a synth supporting MIDI clock messages but my
setup is far from ideal.

Please note that this is part of a development code for version
2.0. When using the application linked in [1]-[3] you can only
open your drumkits and those songs touched with a more or less
recent version of Hydrogen from the 1.2.X release line. So, better
make a backup of the `.hydrogen` folder beforehand. See [5] for
details.

All the best,

Phil

[1]

https://ci.appveyor.com/api/buildjobs/eyx484y447f5lxuo/artifacts/Hydrogen-2.0.0-pre-alpha-8b2e673ba-x86_64.AppImage
[2]

https://ci.appveyor.com/api/buildjobs/l89r8q1jvqqcueea/artifacts/Hydrogen-2.0.0-pre-alpha-8b2e673ba.dmg
[3]

https://ci.appveyor.com/api/buildjobs/8frx59sw2sr9mdn2/artifacts/Hydrogen-2.0.0-pre-alpha-8b2e673ba-win64.exe
[4] https://github.com/hydrogen-music/hydrogen/pull/2187
[5]

https://github.com/hydrogen-music/hydrogen/wiki/What's-new-in-version-2.0%3F-How-to-migrate%3F

On 6/16/25 14:42, jazi4--- via Hydrogen-devel wrote:

Have subscribed to 1644 - this will be a great addition and allow
using Hydrogen in Sync with DAWs and other Apps.
VST would really only be needed for Apps that have no Midi Clock
sync , where Hydrogen VST version would follow App's Transport.
Running Windows 10 x64
Jazi

On 15/06/2025 at 7:17 PM, "Philipp Müller" <[email protected]>
wrote:

Hey,

MIDI Clock is already on the shortlist for the 2.0 release
(see [1]). If you already have a Github account, you can
subscribe to the ticket and will receive notifications
when its state does change.

VST/LV2 plugin, however, is not planned yet. Actually, I'm
a bit at a loss in this regard. Should the whole
application as is be converted into a plugin? Or rather
just the sequencer while both the pattern and song editor
should be omitted?

Beta testing would be great! The main branch contains the
latest version and I could provide you with an executable
if you tell me which OS you are working on.

All the best,

Phil

[1] https://github.com/hydrogen-music/hydrogen/issues/1644

On 6/14/25 19:51, jazi4--- via Hydrogen-devel wrote:

Hi ,
Thank you for creating Hydrogen.
I am interested on how you are progressing with Midi
Clock ?
Also wonder if you will be creating a Hydrogen VST3
Plugin ?
I am available to Beta Test your latest versions.
Kind Regards
Jazi

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Re: [Hydrogen-devel] Beta version of Hydrogen and Midi Clock.

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