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Posts: 43
Joined: June 5, 2015 - 12:43
Re: VirtualMIDISynth/Chrome conflict?

I just upgraded to Windows 10 and the VirtualMIDISynth stopped working.

Suspecting that a driver hadn't been updated properly, I uninstalled the VMS completely and then installed the 1.14.0-beta1 version you gave me earlier in this thread.

This is just to let you know its working fine as far as I can see. :-)

If you'd like me to do any tests on it, just let me know.

Posts: 43
Joined: June 5, 2015 - 12:43
Re: VirtualMIDISynth/Chrome conflict?

I've just reinstalled CoolSoft_VirtualMIDISynth_1.13.2

Better to stick with the stable version, for the moment...

It currently looks as if its the Microsoft GS Wavetable Synth that is crashing my Web App. The VirtualMIDISynth is doing much better... :-)

The MSGSSynth just wasn't built for this kind of stress...

All the best,

James

Posts: 1972
Joined: March 25, 2012 - 01:19
Re: VirtualMIDISynth/Chrome conflict?

Thanks for reporting it.

Actually I'm on a very poor connection... will update on next week.

Posts: 43
Joined: June 5, 2015 - 12:43
Re: VirtualMIDISynth/Chrome conflict?

Just wanted to let you know that I have opened a new issue with chrome:

https://code.google.com/p/chromium/issues/detail?id=499279

This is the issue I ran into before uninstalling the VirtualMIDISynth and running into the above problems. Fortunately we've now sorted those out! :-)

I want to reinstall the VirtualMIDISynth when the new chrome bug has been sorted out. Will be in touch then, in case you still want me to try your beta...

All the best,

James 

Posts: 1972
Joined: March 25, 2012 - 01:19
Re: VirtualMIDISynth/Chrome conflict?

I hope that someone reading this forum could help...

Anonymous user
Re: VirtualMIDISynth/Chrome conflict?

I meant VMS. Yes.

It's a shame you don't know the Web Audio API.
I've never used it myself either. I'm working at the (much simpler) Web MIDI API level. The Web MIDI API is built on top of the Web Audio API.

I think of the Web Audio API as being a bit like Max implemented in Javascript. There's a good introduction to it here:
http://www.html5rocks.com/en/tutorials/webaudio/intro/?redirect_from_loc...

Maybe you know someone else who'd like to dive in there?

Posts: 1972
Joined: March 25, 2012 - 01:19
Re: VirtualMIDISynth/Chrome conflict?

When you say VMP you mean VMS (VirtualMIDISynth) right?

Well, WMP should have only one registry key under HKEY_CURRENT_USER.

notator wrote:
Another thing: What I really need is an online version of VMP. This would reside on the website next to the Assistant Performer and be able to play sounds (SoundFonts?) provided by the website owner. Such a device ought to be feasible using the Web Audio API. I've already asked for something like this at
https://github.com/WebAudio/web-midi-api/issues/124

Any ideas?

No, I really have no knowledge of Web Audio API, sorry.

Posts: 43
Joined: June 5, 2015 - 12:43
Re: VirtualMIDISynth/Chrome conflict?

That did the trick (on both W7 and W8.1). Thanks.

Actually all I did was rename the ActiveMovie key, then open my test Standard MIDI File with WMP. (I didn't want to spend time looking for WMP's configuration dialog...)

Is there another ActiveMovie key for 64bit systems? If there is, WMP has reset that too.

Next week I want to continue testing Chrome before reinstalling VMP on my W7 machine. I still think I may have overstressed Chrome at some point, and for that reason tried to uninstall VMP to create a vanilla system. That was before I opened the bug thread at Chrome.

The best thing for me to do, when Chrome has survived my stress tests, is install VMP on my main (W7) machine (where I need it because I need the low latency) but not on the W8 laptop. Then, if I run into a problem, I can find out easily whether the problem is in Chrome or VMP. VMP is going to get stress tested at some point too! :-)

Another thing: What I really need is an online version of VMP. This would reside on the website next to the Assistant Performer and be able to play sounds (SoundFonts?) provided by the website owner. Such a device ought to be feasible using the Web Audio API. I've already asked for something like this at
https://github.com/WebAudio/web-midi-api/issues/124

Any ideas?

Best
James

[Moderator edit: fixed link]

Posts: 1972
Joined: March 25, 2012 - 01:19
Re: VirtualMIDISynth/Chrome conflict?

AFAIK all the WMP user-mode settings are self contained into this registry key:

HKEY_CURRENT_USER\Software\Microsoft\ActiveMovie

In the FAQ I explained how to reset WMP default MIDI Out device, but maybe your config needs to be completely rebuilt.

You can try to:

  • delete the whole ActiveMovie key (or, better, rename it to ActiveMovie.original, just in case something goes wrong)
  • open WMP, then its configuration dialog
  • change anything, click Apply, revert your change and press Apply again
  • close WMP and reopen it

That registry key should have been rewritten by WMP with its default values.

Posts: 43
Joined: June 5, 2015 - 12:43
Re: VirtualMIDISynth/Chrome conflict?

Hi!

My application is now working flawlessly on Windows 8 too. Bravo! (I missed that I should reset the registry settings for the default MIDI Out configurations there too.)

The question remains as to why Windows Media Player is still refusing to play Standard MIDI files (on both Windows 7 and 8.1).
I imagine there are some more WMP registry settings that also need restoring... I never use WMP, but it would be nice to sort the problem out anyway.

I'll try your 1.14.0-beta1.zip at the beginning of next week.

All the best,

James