How to measure noise, consonance, dissonance of a sound?

1. How do you identify consonance and dissonance?
2. Can you measure dissonance?
3. How do you identify dissonance?
4. How do you know if harmony is consonant or dissonant?

How do you identify consonance and dissonance?

Consonance is when two or more tones complement each other to produce a sound that is pleasant to the ear. Consonant intervals include the major/minor third, the perfect fourth, the perfect fifth, and unison/octave. Dissonance is when two or more tones clash and create a harsh, unpleasant sound.

Can you measure dissonance?

From a musical theory perspective, dissonance is measured by the amount of ALTERED notes in the chord. Altered notes are simply the b5, #5, b9, and #9. In C major these are Gb, G#, Db, and D# respectively. Notice these are all a 1/2 step above and below the 5 and the tonic (root) of the chord.

How do you identify dissonance?

Notes that are dissonant can sound harsh or unpleasant when played at the same time. Or they may simply feel "unstable"; if you hear a chord with a dissonance in it, you may feel that the music is pulling you towards the chord that resolves the dissonance.

How do you know if harmony is consonant or dissonant?

Consonant harmonies are a combination of pitches in a chord which are agreeable or easy to listen to and make pleasing sounds. Dissonant harmonies are a combination of pitches in a chord which are relatively harsh and grating.