High tones are the range of the highest frequencies of sound waves that are perceived by the human ear. High tones are referred to as sopranos (eng. treble). Their sound wave frequencies oscillate between 3000 Hz and 20 kHz, which is the upper limit of audible sounds. Depending on gender, age, and individual characteristics of a person, this range may vary slightly. Acoustic waves with higher frequencies are called ultrasound.
At the lower boundary of the high tone range lies the area of sounds that are best heard by humans, to which our ears are most sensitive. This is the zone of sounds around 3-4 kHz.
Soprano belongs to the group of simple tones, from which complex sounds such as singing or sounds of musical instruments are composed. Alternatively, these tones are also referred to as pure. High tones have a sinusoidal structure and clearly defined frequency, phase, and amplitude. Such tones can be generated using an electroacoustic generator or a tuning fork. Their timbre depends on the sound intensity and the speed of airflow in the room.
