Speak in muted tones and Say in muted tones

Say in muted tones and speak in muted tones are semantically related. In some cases you can use "Say in muted tones" instead a verb phrase "Speak in muted tones".

Speak in muted tones and say in muted tones are semantically related. You can use "Speak in muted tones" instead a verb phrase "Say in muted tones".