Greetings Chris,

Really have enjoyed playing with the Web Audio API and attempted to implement a few minor additions to your demo.

Extended the Gain LFO interface slightly by allowing the user to:

• Choose the type of oscillator affecting the amplitude
• Control the range or "depth" of the effect.

I am a fan of the sharp "cutting" effect of the square wave and thought it would be fun to toggle among all of the different types of LFO signals the API provides.

Created a simple mod delay, which adds "color" (chorus) to the delayed signal. This is loosely modeled after one of my favorite guitar pedals the Electro-Harmonix Memory Man, as made famous by U2's guitarist "The Edge". Took the basic chorus and introduced it into a delay signal chain. Not sure if my quick prototype measures to the original pedal, nonetheless gets the concept across. Motivated to explore more finely tuned future iterations.

Looking forward to keeping involved in the community, -Kyle Verrier

Currently, the error "The provided value 'undefined' is not a valid enum value of interface OscillatorType" is happening due to the use of enums like osc.SINE.

The oscillator node type should be a string (https://developer.mozilla.org/en-US/docs/Web/API/OscillatorNode/type)

What am I missing? This file is under the said directory but I'm not sure what the console errors are saying:

XMLHttpRequest cannot load file:/Audio-Input-Effects-master/sounds/cardiod-rear-levelled.wav. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https, chrome-extension-resource.

effects.js:191 Uncaught NetworkError: Failed to execute 'send' on 'XMLHttpRequest': Failed to load '/Audio-Input-Effects-master/sounds/cardiod-rear-levelled.wav'.

Thanks (for sharing!)

echoCancellation = false is the master constraint which turns off all audio processing which is necessary for this demo to work on Windows if audio ducking is enabled (which it is by default). Turning off Chrome audio processing also turns off audio ducking (part of it).

Details here.

Thank you Chris for this wonderful library of effects. I am working on a project which kind of simulates an online DAW. I was wondering how I would be able to automate effects which cannot be built using nodes which are "AudioParam" (Since only audio params possess the ability to schedule values on a timeline). For example - distortion or pitch shifting.

Thanks, Anand

Partly closes #16

It still needs a way to create the audio context only when the user has interacted, otherwise the user has to rapidly click the page before it loads

This is a tiny PR, but I thought it would be useful for people visiting the repository to have a link to the appspot page. Since the demo is not a gh-pages, it's not evident where it is hosted.

Cheers,

Hello,

This PR fixes the warning The provided value <int> is not a valid enum value of type OscillatorType. when changing the wave type on Gain LFO and LFO Filter. It used to get a numeric value from a select instead of the valid oscillator type strings.

Cheers!

Hello,

I believe the parameter in function createLPInputFilter is never used. The function seems to initialize the global variable without using the received parameter.

Cheers!

There seems to be an if/else checking for webkit that does the same thing in both cases. If it isn't necessary, perhaps it would be better to remove it?

i see you the step on the slider by 0.05. that means you are change the pitch by 1.025 each! 0.05 /2 is 0.025 + 1 = 1.025. if you want to change the pitch 5% then the step should be change by 0.1 each. 1.05 -1 is 0.05 x2 = step = "0.1"

Hi peeps,

Based on this project I've made my own repository with added functionalities (and modernisations to be compliant with modern browers, mainly Chrome).

Added options; Record the audio from your live performance. Choose a sound file instead of the microphone to add effects to.

The project: https://github.com/jonathanneels/Audio-Input-Effects Test it here: https://liveaudioeffects.herokuapp.com/

Enjoy!

Hello,

I noticed that the shaders are not loading because of a CORS error when accessing the app via http. The requests for the shaders are done with https. It is easily circumvented by just accessing the demo site with https, but since Google links to the http site, it may be desirable to support it as well.

XMLHttpRequest cannot load https://webaudiodemos.appspot.com/input/shaders/sonogram-fragment.shader. 
No 'Access-Control-Allow-Origin' header is present on the requested resource. 
Origin 'http://webaudiodemos.appspot.com' is therefore not allowed access.

Cheers!

http://webaudiodemos.appspot.com/input/

NavigatorUserMediaError constraintName: "" message: "" name: "PERMISSION_DENIED" proto: NavigatorUserMediaError

Cannot read property 'MAX_VERTEX_TEXTURE_IMAGE_UNITS' of null

At https://github.com/cwilso/Audio-Input-Effects/blob/master/js/visualizer/visualizer.js#L112