Definition of Parametric stereo
Parametric stereo (abbreviated as PS) is an audio compression algorithm used as an audio coding format for digital audio. It is considered an Audio Object Type of MPEG-4 Part 3 (MPEG-4 Audio) that serves to enhance the coding efficiency of low-bandwidth stereo audio media. Parametric Stereo digitally codes a stereo audio signal by storing the audio as monaural alongside a small amount of extra information. This extra information (defined as "parametric overhead") describes how the monaural signal will behave across both stereo channels, which allows for the signal to exist in true stereo upon playback.
Terms mentioned above
Related terms
Compact disc
The compact disc (CD) is a digital optical disc data storage format co-developed by…
Dolby Digital
Dolby Digital, originally synonymous with Dolby AC-3 (see below), is the name for a…
DVD-Audio
DVD-Audio (commonly abbreviated as DVD-A) is a digital format for delivering…
LAME
LAME is a software encoder that converts digital audio into the MP3 audio coding format…
Album
An album is a collection of audio recordings (e.g., music) issued on a medium such as…
Digital Audio Stationary Head
The Digital Audio Stationary Head or DASH standard is a reel-to-reel, digital audio tape…
ProDigi
Mitsubishi's ProDigi was a professional audio, reel-to-reel, digital audio tape format…
Compression artifact
In computing, a compression artifact (or artefact) is a noticeable distortion of digital…
Compact Disc Digital Audio
Compact Disc Digital Audio (CDDA or CD-DA), also known as Digital Audio Compact Disc or…
Frequently asked questions
What is Parametric stereo?
Parametric stereo (abbreviated as PS) is an audio compression algorithm used as an audio coding format for digital audio.