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Entries found for search: audio

audio : Literally, "I hear" in Latin. The term pertains to any signal, sound, waveform, etc., that can be heard, as opposed to subsonic or ultrasonic sound, radio-frequency signals or video signals.

audio coding mode : A parameter in Dolby Digital surround-sound format which refers to the number of channels and their location in for form F/R, where F is the number of front channels and R is the number of rear channels. For example, 5-channel surround is called 3/2 mode, stereo is 2/0, and mono is designated 1/0.

audio enhancer : Any dynamic signal processing device that in some sense improves a dull or lifeless sound. It can be a simple as EQ or a complex DSP algorithm. Examples of exciters are the Aphex Aural Exciter, BBE Sonic Maximizer, or SPL Vitalizer. Enhancers combine dynamic equalization with either harmonic synthesis or phase manipulation.

audio frequency : See AF.

audio silence : A type of diagnostic recording made with the recording set-up as planned, but with all faders down. Used to make a reference measurement of the noise floor and/or a tape of biased noise.

audio taper : A type of potentiometer designed for use as a volume control in audio equipment where the resistance varies in a logarithmic, rather than a linear, fashion with rotation of the knob. This gives a better correlation between control rotation and the subjective loudness of the signal.

audio-to-MIDI : Software or hardware that takes a monophonic instrumental or vocal line, analyzes the pitches, amplitude, and timbre, and converts the line to MIDI notes, complete with pitch-bend, MIDI velocity and volume, and possibly additional controller data.

AudioX : An open MIDI driver specification/standard being promoted by Cakewalk™.

multiband audio processor : A type of compressor, used by FM radio stations, which breaks up the audio frequency spectrum into from three to five bands, runs them through individual compression components, and then add them back together, resulting in a kind of re-equalization. This process tends to even out the bands, reducing the boominess of mixes with heavy bass, and the tinniness of mixes with a lot of high-frequency signal. See split-band compression.

Audio Blank Skip : Usually accompanies track search and allows the user to skip from the end of one track to the beginning of the next missing out any blank or unrecorded passages on the tape.

RealAudio (.RA) : RealAudio files use a proprietary format designed specifically for playing audio-on-demand in real-time over the internet, introduced by Progressive Networks in 1995, consisting of a server application, and encoder, and a player which works within a Web browser. Normally, the RealAudio player delivers 16-bit sound, although an 8-bit option is available. Data rates range from 14.4 kBps (approximately the sound quality of a mono AM station) to dual ISDN Stereo at 16kHz, nearly CD-quality. See RTSP.

transaural audio : The use of psychoacoustics to give the listener the illusion of sound coming from all around, even though there are only two loudspeakers. The listener must be positioned on the center line of the two speakers to correctly perceive the phantom images. An example is the QSound™ system. Also called psychoacoustic surround soundsurround-sound, or fifty-yard line surround.

Two short audio cables with si 

digital audio : The application of digital technology to the recording, processing, and reproduction of music is somewhat loosely called digital audio, as opposed to analog.

Digital Audio Broadcasting (DA : An alternative to AM and FM broadcasting with audio quality comparable to that of the CD, it does not suffer from fringe area fading or multipath distortion, and requires less radiated power than conventional broadcasting (1kW versus 50kW for AM and up to 100kW for FM.)

digital audio extraction : See grabbing.

Digital Audio Mastering System : See digital multitrack.

Digital Audio Recorder (DAR) : Any type of audio recording system which records upon a digital medium, such as DAT or hard disk. DAT or DCC recorders, digital dubbers, digital multitracks, and hard-disk recording systems are all example of digital audio recorders. These recorders are an alternative to analog recorders, such as traditional cassette or reel-to-reel formats which do not convert the waveform to a digital representation prior to writing it to the recording medium.

SASBF (Structured Audio Sample Together with SAOL these describe Wavetable syntheses. This is used in MPEG-4. A computer downloads and decodes structured Audio files containing samples, instrument definitions, and performance information. The decoded data is then used to re-create the music on the userís system.

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