feat: compression

README.md

@@ -36,7 +36,8 @@ transui             # same as record
 
 Bind `transui record` to a shortcut in your desktop environment. Transui does
 not register a global shortcut itself. Press the same shortcut again to stop
-and transcribe the current recording.
+and transcribe the current recording. Audio is recorded as 16 kHz mono MP3 at
+32 kbps to keep uploads small.
 
 The **Hosted first, local fallback** setting tries the Hosted endpoint, then
 the Local endpoint when the first request fails. With it disabled, Transui uses