Question

Define pitch and echo ?​

Answer 1

Explanation:

1. Echo....

a sound or sounds caused by the reflection of sound waves from a surface back to the listener.

3

2. Pitch.

pitch, in music, position of a single sound in the complete range of sound. Sounds are higher or lower in pitch according to the frequency of vibration of the sound waves producing them. ... Usually a′ above middle C (c′) is taken as a reference pitch. The current standard pitch of a′ = 440 Hz was adopted in 1939.

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Answer 2

pitch.....

Pitch is a perceptual property of sounds that allows their ordering on a frequency-related scale, or more commonly, pitch is the quality that makes it possible to judge sounds as "higher" and "lower" in the sense associated with musical melodies

echo.....

In audio signal processing and acoustics, an echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the listener

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