Definition

Noun: The range of frequencies present in a specific sound, showing how its energy is distributed across different pitches. It is a physical representation of the sound's composition.

Usage

This term is used in technical contexts to analyze and describe the characteristics of a sound. * Scientists analyzed the acoustic spectrum of the dolphin's clicks to understand their communication. * The engineer examined the acoustic spectrum to identify the source of the machine's noise. * A violin and a flute playing the same note have different acoustic spectra.

Advanced Usage

• "to map/plot the acoustic spectrum": To create a visual graph showing the energy distribution across frequencies for a sound.
  • The software can map the acoustic spectrum in real time.
• Used in fields like acoustical engineering, audio forensics, musicology, and environmental noise monitoring.

Variants and Related Words

• Frequency spectrum (n): A more general term for the distribution of energy across frequencies, applicable to other wave types like radio or light.
• Spectrum (n): The broadest term for a range of different things, ideas, or frequencies.
• Spectral analysis (n): The process of studying the spectrum of a signal.

Synonyms

• Sound spectrum
• Audio spectrum
• Frequency distribution (of a sound)

Related Concepts

• Fundamental frequency: The lowest frequency in a spectrum, often perceived as the basic pitch.
• Harmonics/Overtones: Higher frequencies in the spectrum that give a sound its timbre or quality.
• Spectrogram: A visual representation of an acoustic spectrum over time.

Noun

1. the distribution of energy as a function of frequency for a particular sound source