audio frequency
/'ɔ:diou'fri:kwənsi/
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Definition
- Noun:
- A frequency of acoustic waves that can be heard by the human ear: "audio frequency" refers to a periodic vibration whose rate falls within the typical range of human hearing, generally considered to be from about 20 hertz (Hz) to 20,000 Hz.
Usage
- The term "audio frequency" is used in technical contexts related to sound engineering, acoustics, electronics, and telecommunications to describe signals or waves within the audible spectrum.
- It specifies the range of vibrations that, when transmitted through a medium like air, are perceived as sound.
Examples
- Noun:
- The microphone is designed to capture sounds across the entire audio frequency spectrum.
- A dog whistle produces a sound at a frequency above the typical human audio frequency range.
Advanced Usage
- "Within audio frequency": describes a signal or wave whose frequency is in the audible range.
- The tone generator creates signals within audio frequency for hearing tests.
- "Audio frequency signal": a common technical compound referring to an electrical signal that corresponds to a sound wave.
- The amplifier processes the audio frequency signal before sending it to the speaker.
Variants and Related Words
- Audible frequency: A synonym for audio frequency.
- Sonic frequency: Another synonym, often used in physics and engineering.
- AF (abbreviation): A common abbreviation for "audio frequency" in technical schematics and documentation (e.g., AF amplifier).
- Infrasonic: Refers to frequencies the audio frequency range (below 20 Hz).
- Ultrasonic: Refers to frequencies the audio frequency range (above 20,000 Hz).
Synonyms
- Audible frequency
- Sonic frequency
Related Phrases and Compounds
(Note: These are common technical compounds, not phrasal verbs or idioms.) - Audio frequency range: The specific span of frequencies, e.g., 20 Hz to 20 kHz. - Audio frequency oscillator: An electronic device that generates signals in the audio range. - Audio frequency noise: Unwanted sound or interference within the audible spectrum.
Noun
- an audible acoustic wave frequency