What describes the sound produced by a straight mute?

The sound produced by a straight mute is characterized by a tinny, metallic quality. This effect is achieved when the straight mute is inserted into the bell of brass instruments, such as the trumpet or trombone. The mute alters the instrument's harmonic spectrum, producing a sound that lacks some of the richness and warmth typically associated with an open bell. Instead, it has a sharper, more focused tone that can come across as bright and cutting, often described as tinny due to the overtones emphasized by the mute and the reduction of lower frequencies. This sound is distinct and is often used in various styles of music to create unique color and texture within a performance. Other options describe different timbres that either characterize the sound without a mute or refer to other mutes designed for warmth and depth.