Question #ef597

1 Answer
Truong-Son N.
Feb 15, 2018

Pitch is dependent on frequency, and loudness is dependent on amplitude.

Suppose a pitch was assigned to the frequency #"22.0 kHz"#. Then an octave higher would have a frequency of #"44.0 kHz"#, independent of how loud the sound is.

http://www.soundproofingcompany.com/wp-content/uploads/2011/06/frequency_frame-e1447285622857gif

And the louder the sound, the higher the amplitude of its waveform.

https://trac.ffmpeg.org/

You can see here that the right channel is quiet for a while, and then halfway through, it gets louder. The left channel eases in and out, and then halfway through, reaches its loudest portions.

Related questions
Impact of this question
400 views around the world
You can reuse this answer
Creative Commons License