Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
Search results
- Audio Customization(also: Audio Control, Sound Customization)
- The ability for users to modify the audio characteristics of media content, including removing background sounds, enhancing speech clarity, adjusting volume levels for different audio channels, and controlling audio effects. Audio customization for accessibility goes beyond…
- Audio Denoising(also: Noise Removal, Audio Noise Reduction)
- The process of removing unwanted background sounds, noise, or audio artifacts from an audio signal while preserving the primary content (typically speech). In video accessibility for ADHD, audio denoising removes background music, sound effects, environmental sounds, and other…
- Audio Separation(also: Source Separation, Audio Unmixing)
- The process of isolating individual audio sources from a mixed audio signal—for example, separating speech from background music, sound effects, and ambient noise. Audio separation enables selective control over different audio components, allowing users to keep speech while…
- Binaural Beats
- Binaural beats are an auditory phenomenon that occurs when two tones of slightly different frequencies are played simultaneously in separate ears through headphones, creating a perceived third tone whose frequency equals the difference between the two signals. For example, a 400…
- Mel Spectrogram(also: Mel-frequency Spectrogram, Log Mel Spectrogram)
- A visual representation of sound that maps audio frequencies onto the mel scale, which approximates how humans perceive pitch — compressing higher frequencies and expanding lower ones to match the non-linear sensitivity of human hearing. Mel spectrograms convert audio signals…
- Speech Enhancement(also: Voice Enhancement, Speech Clarity Improvement)
- Audio processing techniques that improve the clarity, intelligibility, and quality of speech in audio or video content. Speech enhancement can involve removing background noise, extending audio bandwidth, normalizing volume levels, and improving articulation clarity. For viewers…
6 results.