# TSR0020: Invalid sound-mode configuration: ….

> The sound-mode configuration is invalid, for example more than one of ts-r.toml, tsrconfig.json and the tsconfig key set it. Keep one valid configuration.

## What it means

Sound mode is configured in one of three places: the `[sound]` table of `ts-r.toml`, a `tsrconfig.json` (`{ "sound": { ... } }`, comments allowed), or a top-level `"ts-r": { "sound": { ... } }` key in tsconfig.json. A problem with that configuration (an unknown key, a value of the wrong type, a malformed `refinements` entry) is reported on the file, with the details in `{0}`.

Configuring sound mode in more than one of those places is one such problem. The message names every file involved, for example `sound mode is configured in more than one place: the "ts-r" key of 'tsconfig.json' and 'ts-r.toml'; keep one`.

## How to fix

- Keep the configuration in one place: `ts-r.toml`, `tsrconfig.json` or the `"ts-r"` key of tsconfig.json.
- Check the values against the configuration section of [design record 0007](https://github.com/Webb-Ventures/typescript-rust/blob/main/docs/design/0007-sound-mode.md).

Sound mode is defined in [design record 0007](https://github.com/Webb-Ventures/typescript-rust/blob/main/docs/design/0007-sound-mode.md) (accepted 2026-10-15).

Source: https://ts-r.dev/errors/TSR0020/