Who it is forDeveloper who has one good sound and wants endless variations or a blend of two sounds
The problemA fixed audio file cannot be resized, retuned or varied, so repeated use sounds identical.
The outcomeA recipe module that re-renders the sound with new takes, readable knobs and morphs between two recordings.
What you need first
- Python
- CPU only, no GPU needed
- Local models load on first call (about 20 to 40 seconds per CLI call)
- No account or paid key for core features
- Optional Gemini key only for the `llm` command
- Reference recordings for `forge --refset` are not in the repo; bring your own with `--refs DIR`
Steps
- Run
earshot fit click.wav -o made/click_fit.py --reporton your recording. - Run the module with
python made/click_fit.py 3 take3.wavto render a new take. - Blend two sounds with
earshot fit --morph a.wav b.wav --amount 0.5 -o made/ab_morph.py. - Explore variations with
earshot fit --forge made/click_fit.py --budget 96 --dir made/click_variations.
Prompt for your agent
Use earshot fit to convert <recording.wav> into a recipe module, then render three new takes and describe how they differ. Verify the fit by comparing the side-by-side spectrogram in the report.
Caveat. The fit stores the structure of the sound, not its samples, so very complex or noisy recordings may reproduce only approximately.
About earshot
Gives coding agents ears: they can listen to audio, review it and generate sound. Runs on a plain CPU and is open source. View Leonxlnx/earshot on GitHub.
More with earshot
- Synthesize a new sound in code and refine it by ear Let the agent write a sound recipe, then have a critic score and improve it against real references.
- Pick the best sound from a pile of downloads Rank candidate files against a text description and trim the best moment from a long recording.
- Get a written description of any audio file Turn a sound file into plain words, tags and measurements an agent can reason about.
- Score a launch film's audio against pro launch films Run a scorecard that lists timestamped fixes for your film's soundtrack and mix.
- Build a sound kit for a code-made film Pick one sound per role from a bank of 201 effects and render them with measured sync points.
- Give Claude Code ears with the MCP server Run earshot as an MCP server so your agent can listen without reloading models each call.
- Check that sound hits land on your video cuts Get a second-by-second listening transcript of a film and see if hits match the picture cuts.
- Tell a real recording from a code-made sound Score files for realness and compare them to reference recordings or each other.
Disclaimer
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