Echoin

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Use Echoin with your own audio.

Echoin processes imported audio and transcription on your iPhone. No account is required.

Getting started

  1. Open Models and keep the built-in Base model selected, or download Small or Large when you have a network connection.
  2. Tap Add audio and choose an audio file from the Files app.
  3. Run transcription and wait for the on-device processing to finish.
  4. Save the lesson, then open it to practice sentence by sentence or edit and export the LRC file.
Network note: The built-in Tiny and Base models work offline. Only the optional Small and Large model downloads require an internet connection. Your audio and transcript are not uploaded.

Common issues

The model download failed

Check your connection and available device storage, then try again. A partial download is removed automatically. You can continue using the built-in Base model offline.

No speech was detected

Try a recording with clear speech and enough volume. Echoin currently supports audio files, not video files.

The transcript is inaccurate

Try a larger model, a clearer recording, or audio with less background noise. You can edit the generated LRC text before exporting it.

Where is my data?

Imported audio, transcripts, and LRC files are stored locally in the app. You can delete a lesson from the library or remove downloaded models from Models.

Audio rights

Only import audio that you own or are authorized to use. Echoin does not provide an audio catalog or download third-party audio.

Contact

For privacy questions or private support, email gouyang2020@gmail.com. For public bug reports, you can open an issue on GitHub. Please do not include private audio, transcripts, or other sensitive information in a public issue.

Read the Echoin Privacy Policy.