Temporal change is a defining feature of natural sound perception
Evidence
The attributes of natural sounds typically change with time. Only periodic or noise-like sounds may sound the same for a longer time. Our hearing is very sensitive to temporal changes in sound, and a simple method to present the temporal variations in sound is to plot the instantaneous amplitude against time, which is called the amplitude envelope of sound. Another, slightly more complex method is to plot the spectrogram of the signal. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 685
Categorization
Category: Definitional Content
- DEFINE: Defines the amplitude envelope and positions the spectrogram as the complementary tool for presenting temporal variation.
Related
- Hearing is highly sensitive to temporal changes in sound (similarity 0.93)
- Two kinds of sound change activate different processing features in hearing (similarity 0.91)
- Temporal processing is essential for hearing speech and music (similarity 0.87)
- Normal hearing yields a temporal resolution factor near unity (similarity 0.87)
- Sounds are time-varying when their intensity changes over time (similarity 0.86)
- A spectrogram preserves timing of acoustic changes in a note (similarity 0.84)
- A spectrogram displays a sound’s spectrum plotted against time (similarity 0.84)
- Hearing repackages one-dimensional sound signals into multidimensional time-frequency objects (similarity 0.83)
- Temporal fine structure is vital yet not perceived as a temporal event (similarity 0.83)
- Sound must vary over time to hold listener attention (similarity 0.83)
- Perceived instrument character is shaped by the time evolution of sound amplitude (similarity 0.83)
- Randomly timed tones model how new sound sources appear in a natural scene (similarity 0.82)
- Temporal processing of sound has three distinct measurable categories. (similarity 0.82)
- Envelope-structured sounds produce time-variant temporal masking patterns. (similarity 0.82)
- Sonification renders time-varying data through pitch and timbre changes (similarity 0.82)