| Clue | Source | Date |
|---|---|---|
| Less loud | ||
| More hushed | Thomas Joseph | 20 Apr 2024 |
| Less talkative | Newsday | 05 Apr 2024 |
| More subdued | The Chronicle of Higher Education | 17 Nov 2017 |
| More subdued | ||
| More suitable for sleepers | Wall Street Journal | 10 May 2016 |
| With the volume down around 2, say | ||
| More peaceful | ||
| Librarian, at times | ||
| Turned down | ||
| Calmer. |