spectrogram
Sound made visible
A spectrogram is a visual representation of sound frequencies over time, displaying how the energy at different pitches changes as audio plays.
The horizontal axis shows time, the vertical axis shows frequency, and color or brightness indicates intensity.
Spectrograms are used in linguistics, music analysis, and audio engineering to examine speech patterns, identify sounds, or detect anomalies: The spectrogram revealed a low hum throughout the recording.
Traveling pressure disturbance
- frequencyRate of recurrence
- amplitudeMaximum oscillation displacement
- waveformGraphed oscillation pattern
- harmonicsFrequencies above the fundamental
pitch · tone · decibel · resonance · timbre · overtones · fundamental · formant
Study of speech sounds
- vowelUnobstructed speech sound
- consonantIn agreement with
- prosodyStudy of verse rhythm
- intonationPitch variation in speech
stress · articulation · fricative · plosive · nasal · accent · dialect · phoneme
Rapid spectral decomposition algorithm
- filteringSelective passage of elements
- bandwidthData transmission capacity
- samplingExtracting subset for study
- windowingDividing screen into panes
envelope · phase · distortion · modulation · wavelet · aliasing
Color-scaled data visualization
- intensityStrength or force level
- contrastNotable difference between things
- resolutionFormal decision or determination
- grayscaleTonal range, black to white
Underwater detection by echoes
- radarRadio-wave object detection
- seismologyStudy of ground tremors
soundwave
Traveling pressure disturbance
- frequencyRate of recurrence
- amplitudeMaximum oscillation displacement
- waveformGraphed oscillation pattern
harmonics · pitch · tone · decibel · resonance · timbre · overtones · fundamental · formant · vocalization
phonetics
Study of speech sounds
intonation · stress · articulation · fricative · plosive · nasal · accent · dialect · phoneme · syllable
FFT
Rapid spectral decomposition algorithm
- filteringSelective passage of elements
- bandwidthData transmission capacity
- samplingExtracting subset for study
windowing · envelope · phase · distortion · modulation · wavelet · aliasing
heatmap
Color-scaled data visualization
- intensityStrength or force level
- contrastNotable difference between things
- resolutionFormal decision or determination
sonar
Underwater detection by echoes
- radarRadio-wave object detection
- seismologyStudy of ground tremors
- acousticssound waves, sound wave, sound, soundwave, vibration
- data graphicsbar chart, line graph, pie chart, scatter plot, histogram
- Scientific Imagesmicroscopy, X-ray, MRI scan, CT scan, satellite image
- sound scienceacoustics, sound, sound waves, vibration, resonance
- signal processingsignal processing, FFT, convolution, sampling, aliasing
- spectroscopyspectrophotometer, XPS, UPS, AES, EPR