Philips NP2900 User manual - Page 44
S/PDIF SPDIF Sony/Philips Digital, Interface, Shuffle, SPL sound pressure level
UPC - 609585155749
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MP3 A file format with a sound data compression system. MP3 is the abbreviation of Motion Picture Experts Group 1 (or MPEG-1) Audio Layer 3. With the MP3 format, one CD-R or CD-RW can contain about 10 times more data than a regular CD. Mute A control found on receivers, and some mixers or signal processing units that silences (mutes) a signal path, or output. O Ohm Measure of resistance to current (impedance). The lower the impedance of a speaker, the harder it is to drive. P PBC The push button configuration (PBC) method is a router feature that allows connection by the push a button (actual or virtual). PCM (Pulse Code Modulation) Pioneering form of digital recording. PIN In Internet routing, the Personal Identification Number (PIN) method allows users to use a PIN to connect the router. R RF (radio frequency) An alternating current or voltage with a frequency (or carrier wave) above about 100kHz. It is called radio frequency because these frequencies have a capacity to be radiated as electromagnetic waves by radio (and television) stations. Rhapsody® Rhapsody® is an on-line music service that offers streaming on-demand access to its library of digital music. S S/PDIF (SPDIF) (Sony/Philips Digital Interface) A standard audio-file transfer-format that was developed jointly by Sony and Philips. S/ PDIF allows the transfer of digital audio signals from one device to another, without the need to convert first to analog. This prevents the quality of the digital signal degrading during transfer to analog. Sensitivity Volume that a speaker offers for a specific voltage input, expressed in decibels per watt (dB/W). Shuffle A feature that plays audio files (tracks) in random order. Signal to noise ratio Represents the difference between the level of the audio signal, and any interference. The larger the figure, the purer the sound. SPL (sound pressure level) An acoustic measurement of sound energy. 1 dB SPL is the smallest increment in sound level to which the average human is sensitive. Theoretically, 0 dB SPL is the threshold of human hearing while approximately 120 dB is the threshold of pain. Stereo Literally means solid. Usually taken to refer to two channel stereo, though developments in digital audio facilitate multichannel stereo. Streaming A technique for transferring data such that it can be processed as a steady and continuous stream. Streaming technologies are often used on the Internet because many users do not have fast enough access to download large EN 43 English