Definition

1. 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

1. an audible acoustic wave frequency