Are animal sounds examples of normal appears? This is the clarification

In the meantime, according to the frequency of the audio it is divided into a few, specifically infrasonic, audiosonic and ultrasonic. Infrasound is a kind of seem that has a frequency down below 20 Hz. Infrasound is a style of sound that is below the frequency selection of human listening to. For audiosonic it is the sort of audio that can be read by humans and has a frequency of 20 Hz to 20,000 Hz. All individuals can hear is a sonorous audio, each the loud audio of drilling the floor and the slight rustle. of the leaves. In the meantime, ultrasound is a sort of audio that has a frequency over 20,000 Hz. Ultrasonic seem is a really loud sound but is past the access of human listening to.

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