audio-preview
You can play your audio file and preview its info on VS Code.
You can also check waveform and spectrogram.
Supported Audio Files: wav
, mp3
, aac
, ogg
, flac
, opus
, m4a
, sph
... etc.
Note
Please consider using the built-in audio playback feature as well.
When we developed this VS Code extension, VS Code did not bundle ffmpeg and had no audio playback capabilities.
However, with updates, a built-in audio playback feature has been added.
While this extension has finish its purpose, we will continue to maintain it slowly.
Features
How to preview audio.
Note: You can play audio without waiting for finish decoding.
If this extension does not open by default, edit settings.json
like below.
"workbench.editorAssociations": {
"*.wav": "wavPreview.audioPreview"
},
Settings
You can configure these options in settings.json
or VS Code's GUI.
Configuration is completely optional.
There is no need to configure anything if you are just using this extension.
You can analyze audio automatically when you open it.
"WavPreview.autoAnalyze": true
You can configure default value of analyze settings like example below.
"WavPreview.analyzeDefault": {
// Settings about WaveForm figure
/*
Range of amplitude displayed on the figure. [-100,100]
Default value is automatically expanded to fit min and max value of audio data.
*/
// default: min amplitude of audio data
"minAmplitude": -1,
// default: max amplitude of audio data
"maxAmplitude": 1,
// Settings about Spectrogram
/*
FFT window sizw. [0,7]
You can choose from values below.
0:256, 1:512, 2:1024, 3:2048, 4:4096, 5:8192, 6:16384, 7:32768
default: 2
*/
"windowSizeIndex": 5,
// Range of frequency displayed on the figure. [0,sampleRate/2]
// default: 0
"minFrequency": 1000,
// default: sampleRate/2
"maxFrequency": 8000,
/*
Range of amplitude(dB) displayed on the spectrogram. [-1000, 0]
Since the maximum value of Amplitude is adjusted to be 0dB, set a negative value.
default: -90
*/
"spectrogramAmplitudeRange": -100,
/*
Frequency Scale of spectrogram. [0,2]
You can choose from values below.
0:Linear, 1:Log, 2:Mel
default: 0
*/
"frequencyScale": 1,
// Number of filter in melFilterBank. [20, 200]
// default: 40
"melFilterNum": 100
}
}
Development
Contributions
Feel free to report Isuues and send Pull Requests on github.
If you encounter an error and create an issue, it may be helpful for development if you attach the log displayed in VSCode's DevTools.
VSCode's DevTools can be opened in the following ways.
- Press f12
- Press shift + ctrl + I
- Select Help > Toggle Developer Tools from the menu at the top of the screen
Build
- Clone this repo
- Install Dependencies:
npm install
- Build Container for decoder:
docker build -t audio-decoder ./src/decoder/
- Compile decoder.cpp to wasm:
docker run --rm -v ${pwd}/src/decoder:/build -it audio-decoder make
- Run Extension: f5
References
Custom Editor: https://code.visualstudio.com/api/extension-guides/custom-editors
Cutrom Editor Example: https://github.com/microsoft/vscode-extension-samples/tree/main/custom-editor-sample