Question

Categorise sound into three categories based on frequencies.

Answer 1

Explanation:

Explanation: Sounds are initially partitioned into three categories: people, nature, and manmade. Note that Figure 6 is limited in depth by the number of sounds used in the top level soundscape experiment (60). Thus the music category, for example, contains only piano and singing sounds.

Answer 2

Answer:

Human beings can normally hear sounds with a frequency between about 20 Hz and 20,000 Hz. Sounds with frequencies below 20 hertz are called infrasound. Infrasound is too low-pitched for humans to hear. Sounds with frequencies above 20,000 hertz are called ultrasound.