spectrogram: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “spectrogram” mean?
A visual representation of the spectrum of frequencies in a sound or other signal as they vary with time.
Audio
Pronunciation
Definition
Meaning and Definition
A visual representation of the spectrum of frequencies in a sound or other signal as they vary with time.
Any graph showing the distribution of energy across frequencies over time; commonly used in acoustics, linguistics (for analyzing speech), music, seismology, and engineering.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or usage differences. Spelling follows the standard pattern ('gram' not 'graph').
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low-frequency and specialized in both dialects.
Grammar
How to Use “spectrogram” in a Sentence
[verb] + spectrogram: generate/plot/produce a spectrogram[adjective] + spectrogram: acoustic/linguistic/real-time spectrogramspectrogram + [preposition] + [noun]: spectrogram of the signalVocabulary
Collocations
Examples
Examples of “spectrogram” in a Sentence
verb
British English
- The software can spectrogram the audio file in real time. (Note: highly technical, rare)
American English
- The module allows you to spectrogram the captured signal. (Note: highly technical, rare)
adjective
British English
- The spectrogram analysis revealed hidden formants.
American English
- We need spectrogram software for this project.
Usage
Meaning in Context
Business
Rarely used; potentially in audio tech or data analytics companies.
Academic
Common in phonetics, acoustics, signal processing, geophysics, and music technology research.
Everyday
Virtually never used in general conversation.
Technical
Standard term in fields dealing with signal analysis.
Vocabulary
Synonyms of “spectrogram”
Strong
Neutral
Weak
Vocabulary
Antonyms of “spectrogram”
Watch out
Common Mistakes When Using “spectrogram”
- Misspelling as 'spectrograph' (a related but distinct instrument).
- Using it as a verb (e.g., 'to spectrogram' is non-standard).
FAQ
Frequently Asked Questions
Not exactly. A spectrograph is the instrument that produces a spectrogram, which is the resulting graph or image.
Yes, loudness is often represented by colour intensity or brightness on a spectrogram.
No, it can be used for any signal that can be decomposed into frequencies, such as radio waves or seismic vibrations.
Yes, common software includes Praat (for speech), Audacity, or MATLAB and its toolboxes for general signal processing.
A visual representation of the spectrum of frequencies in a sound or other signal as they vary with time.
Spectrogram is usually technical/scientific in register.
Spectrogram: in British English it is pronounced /ˈspɛktrə(ʊ)ɡram/, and in American English it is pronounced /ˈspɛktrəˌɡræm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “read like a spectrogram (very rare, technical metaphor for detailed analysis)”
Learning
Memory Aids
Mnemonic
Think 'spectrum' + 'diagram' = SPECTROGRAM, a diagram of a spectrum.
Conceptual Metaphor
A MAP OF SOUND, showing its landscape of pitches over time.
Practice
Quiz
In which field would you MOST commonly encounter a spectrogram?