Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
muted [ˈmjuːtɪd] adj (reaction, criticism) сде́ржанный*сде́ржан (colour, noise) приглушённый/приглушён
muted strings стру́ны под сурди́нкой
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
mute [mjuːt]
adj (silent) безмо́лвный*безмо́лвен n (MUS) сурди́нка
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.