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AudioLens icon

AudioLens

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AudioLens is a free, open-source VS Code extension for listening to audio while inspecting its waveform and spectrogram. It keeps playback, per-channel views and selection measurements beside the files and code in your workspace.

Per-channel waveform and spectrogram views share a timeline with audio playback and channel controls.

Cost / License

Since

  • Since 2026

Updated

  • Updated Nov 2026

Platforms

  • Visual Studio Code  Requires Visual Studio Code 1.74 or later.
Spectrogram controls for FFT size, window function, frequency scale, frequency range and color palette.
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Audio & Music

GitHub repository

  •  67 Stars
  •  11 Forks
  •  3 Open Issues
  •   Updated  
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AudioLens was added to AlternativeTo by simzhou on and this page was last updated .

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What is AudioLens?

AudioLens is a free, open-source VS Code extension for listening to audio while inspecting its waveform and spectrogram. It keeps playback, per-channel views and selection measurements beside the files and code in your workspace.

Switch each channel between waveform, spectrogram and combined views. Select an interval to play that region and inspect measurements such as RMS, sample peak and clipping ratio. Save the selection as a WAV file from the context menu. Multi-channel playback includes mute, solo, gain and pan controls.

Spectrogram settings include FFT size, window function and frequency scale. AudioLens also supports Remote SSH workspaces, raw PCM with explicit sample rate and format settings, and RIFF/WAVE entries inside Kaldi archives.

AudioLens requires VS Code on Windows, macOS or Linux.