The chord_detector from myers

Uncaught TypeError: Module.cwrap is not a function

Many thanks! I have followed the instructions carefully however, when I go to docs and run a python server, this is the error I'm getting

Any thoughts?

How it work ?

Hello @myers,

Thank you for sharing your work !
I would like to use your package but I have not arrived.

You say in the readme to do some stuff but I don't see where do theses things..
Could you help me?

Demo in mobile dorsnt work.

Hey cool project. I tried to get the demo working on my phone but it doesn't seem to work, at least for me. Is it just the demo/phone? Would love to use this library in the future.

Project setup

Do I need to install make and emsdk on my PC for building the project?

git submodule update --init # pull in Chord-Detector-and-Chromagram
npm run build # requires emscripten's emcc to be on your path

After I installed and setup make and emsdk I was able to run make on project root dir.


/chord_detector>> make

emcc -O3 vendor/Chord-Detector-and-Chromagram/libs/kiss_fft130/kiss_fft.c -o build/kiss_fft.o
shared:INFO: (Emscripten: Running sanity checks)

emcc: warning: object file output extension (.o) used for non-object output.  If you meant to build an object file please use `-c, `-r`, or `-shared` [-Wemcc]

emcc -O3 -I vendor/Chord-Detector-and-Chromagram/libs/kiss_fft130 -D USE_KISS_FFT vendor/Chord-Detector-and-Chromagram/src/Chromagram.cpp -o build/Chromagram.o

emcc: warning: object file output extension (.o) used for non-object output.  If you meant to build an object file please use `-c, `-r`, or `-shared` [-Wemcc]
emcc -O3 vendor/Chord-Detector-and-Chromagram/src/ChordDetector.cpp -o build/ChordDetector.o

emcc: warning: object file output extension (.o) used for non-object output.  If you meant to build an object file please use `-c, `-r`, or `-shared` [-Wemcc]

emcc -O3 --memory-init-file 0 chord_detector_wrapper.cpp -o index.js -s EXPORTED_FUNCTIONS="['_Chromagram_constructor','_Chromagram_destructor','_Chromagram_processAudioFrame', '_Chromagram_isReady', '_Chromagram_getChromagram', '_ChordDetector_constructor', '_ChordDetector_destructor', '_ChordDetector_detectChord', '_ChordDetector_getRootNote', '_ChordDetector_getQuality', '_ChordDetector_getIntervals']" -D USE_KISS_FFT -I vendor/Chord-Detector-and-Chromagram/src -I vendor/Chord-Detector-and-Chromagram/libs/kiss_fft130 build/*.o --post-js chord_detector.js

emcc: error: build/*.o: No such file or directory ("build/*.o" was expected to be an input file, based on the commandline arguments provided)

make: *** [index.js] Error 1

I ignored the error and tried running:

/chord_detector>> npm run build

npm WARN config global `--global`, `--local` are deprecated. Use `--location=global` instead.

> [email protected] build
> make; cd docs; browserify demo.js -o bundle.js

make: *** There is no rule to build the target `;'.  Stop.

I tried opening docs/index.html:

I get this errors:

bundle.js:8 

The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page.
(anonymous) @ bundle.js:8
j @ jquery-3.1.1.slim.min.js:2
k @ jquery-3.1.1.slim.min.js:2
setTimeout (async)
(anonymous) @ jquery-3.1.1.slim.min.js:2
i @ jquery-3.1.1.slim.min.js:2
fireWith @ jquery-3.1.1.slim.min.js:2
fire @ jquery-3.1.1.slim.min.js:2
i @ jquery-3.1.1.slim.min.js:2
fireWith @ jquery-3.1.1.slim.min.js:2
ready @ jquery-3.1.1.slim.min.js:3
R @ jquery-3.1.1.slim.min.js:3
bundle.js:61 

[Deprecation] The ScriptProcessorNode is deprecated. Use AudioWorkletNode instead. (https://bit.ly/audio-worklet)

When hitting play buttons in the console I get this error:

MediaElementAudioSource outputs zeroes due to CORS access restrictions for file:///.../chord_detector/docs/A-Chord.ogg

So I run a server for loading app.

bundle.js:61 

[Deprecation] The ScriptProcessorNode is deprecated. Use AudioWorkletNode instead. (https://bit.ly/audio-worklet)
(anonymous) @ bundle.js:61

bundle.js:63 

[874] onaudioprocess    // This fn keeps running after the played audio stops.

All audios only plays once. After playing all audios for the second time onaudioprocess and I get this errors:

bundle.js:20 
        
Uncaught DOMException: Failed to execute 'createMediaElementSource' on 'AudioContext': HTMLMediaElement already connected previously to a different MediaElementSourceNode.
    at HTMLAudioElement.<anonymous> (http://127.0.0.1:5500/docs/bundle.js:20:23)
    at HTMLAudioElement.dispatch (https://code.jquery.com/jquery-3.1.1.slim.min.js:3:10559)
    at q.handle (https://code.jquery.com/jquery-3.1.1.slim.min.js:3:8586)

Make fails with wasm-ld error

Running npm run build or simply make results in the error:

Exception in thread Thread-3:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib/python2.7/multiprocessing/pool.py", line 392, in _handle_results
    task = get()
TypeError: __init__() takes at least 3 arguments (1 given)

and the build never completes.

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Uncaught TypeError: Module.cwrap is not a function

How it work ?

Demo in mobile dorsnt work.

Project setup

Make fails with wasm-ld error

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