Page 92 - KEC Khaitan C8.1 Flipbook
P. 92
Decibel Levels of Common Sounds
4. Timbre (Tone Quality)
Timbre is the quality that makes different instruments or voices sound unique, even when playing
the same pitch and loudness.
HUMAN PERCEPTION OF SOUND
Humans typically hear frequencies
between 20 Hz to 20,000 Hz. Sounds
above 20,000 Hz (ultrasound) or
below 20 Hz (infrasound) are usually
inaudible to humans.
The Hearing Frequency Range of Humans and Animals
VIDEO ON HUMAN AUDIO SPECTRUM:
https://www.youtube.com/watch?v=qNf9nzvnd1k
Generate and put a scancode if you can.
Essential Terms:
Frequency: The number of waves produced in one second.
Hertz: Unit of measurement for frequency.
Amplitude: Loudness or softness of a particular soundwave.
Pitch: How the ear and brain interpret the frequency of the sound. High frequency corresponds
to high pitch, and low frequency corresponds to low pitch.
More on Pitch
Pitch in music refers to the position of a sound within the range of sounds.
High-frequency vibrations result in high-pitched sounds (e.g., 880 Hz).
Low-frequency vibrations result in low-pitched sounds (e.g., 55 Hz).
Note: The general range of human hearing lies between 20 Hz and 20 kHz.
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