Thanks for this!

Is it possible to change the octave? Can't get low enough for the Bizarre Love Triangle bass line.

There's ongoing work to add native Web MIDI support to Firefox.

To validate the implementation, we're wiring a Web MIDI producer to your synth and expecting it to work correctly, as it does on Chrome. However, it's not working correctly at the moment, as per this ticket.

Your review would be appreciated!

https://developers.google.com/web/updates/2017/09/autoplay-policy-changes#webaudio

See more at pixijs/sound#65

The $http promise success method has been deprecated and removed from Angular 1.6, causing ROM loading to fail when built with a recent version of Angular.

Thanks!

I'm on MacOs using Chrome, I have connected a AKAI professional LPK25 but I can't seem to get it working in dx7-synth-js. Hover it works fine in this demo: https://github.com/cwilso/midi-synth

FF 99 supports Web MIDI as per https://bugzilla.mozilla.org/show_bug.cgi?id=836897. However, there is a little song and dance needed to prompt the user for the Web MIDI permission, as per https://extensionworkshop.com/documentation/publish/site-permission-add-on/.

I've implemented this in my own app at infojunkie/ireal-musicxml@9616545. In a nutshell, here are the steps:

• Obtain a FF add-on (xpi file) called "site permission generator" that you host on your site, and that each user will download.
• To show a message on your app that the user needs to download this add-on, you detect an error during navigator.requestMIDIAccess() and you detect that FF is the user agent.
• The user downloads and installs the add-on, which then shows a second prompt to enable Web MIDI.
• The user needs to refresh the page. This time, the call to navigator.requestMIDIAccess() will succeed and Web MIDI will be enabled.

You can refer to my commit above for a template of this process. Hope this helps!

The code is amazingly well written and I'm learning it!

index.html in gh-pages uses bundle.js and works fine.

However the index.html in master still want to use bundle.js which is not yet complied. So, of course, the master branch is broken.

How to make index.html directly use source code(src/*.js) but not complied code(bundle.js)?

Cheers,

Kailang

After updating to Chrome 56, I'm still able to use the computer keyboard to trigger notes, and the demo buttons work as expected, but MIDI input seems to be ignored and nothing happens after selecting a MIDI file from the drop-down and pressing "play".

When using Chromium 55.0.2883.95 (which works), this message appears in the console, which may or may not be related:

MIDIMessageEvent.receivedTime is deprecated and will be removed in M56, around January 2017. See https://www.chromestatus.com/features/5665772797952000 for more details.

Hi,
in the envelope processing if "decayIncrement" becomes 0 the processing doesn't work correctly because it will never reach the next state because the level is not changed anymore (example would be levels=99,95,95,0 and rates=96,0,12,70)

• questor

I don't know if the original DX7 supported the All Sound Off CC message (type 120) but it would be useful to support it, especially that most Web MIDI implementations don't support the MidiOutput.clear() method which is supposed to clear the message queue on the sender side.

Supporting this message and/or All Notes Off (CC type 123) would help MIDI players achieve pause / stop functionality. Thanks!

Chrome: Version 77.0.3865.75 (Official Build) (64-bit)

When playing demo:

• high cpu usage
• choppy sound
• choppy sound improves by reducing operators enabled

The link "Live demo of DX7 Synth JS" on the README points to http://mmontag.github.io/dx7-synth-js/. The absence of https cuases recent version of Chrome to mark the app as insecure and hides the MIDI devices. Changing to https fixes this.