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- Digital_Audio_Stationary_Head abstract "The Digital Audio Stationary Head or DASH standard is a reel-to-reel, digital audio tape format introduced by Sony in early 1982 for high-quality multitrack studio recording and mastering, as an alternative to analog recording methods. DASH is capable of recording two channels of audio on a quarter-inch tape, and 24 or 48 tracks on 1⁄2-inch-wide (13 mm) tape on open reels of up to 14 inches. The data is recorded on the tape linearly, with a stationary recording head, as opposed to the DAT format, where data is recorded helically with a rotating head, in the same manner as a VCR. The audio data is encoded as linear PCM and boasts strong cyclic redundancy check (CRC) error correction, allowing the tape to be physically edited with a razor blade as analog tape would, e.g. by cutting and splicing, and played back with no loss of signal. In a two-track DASH recorder, the digital data is recorded onto the tape across nine data tracks: eight for the digital audio data and one for the CRC data; there is also provision for two linear analog cue tracks and one additional linear analog track dedicated to recording time code.The main advantage of any digital recording medium is that of consistent reproduction, which is why some of the first uses of digital recording were for instrumentation data and classical music. For audio, uncolored reproduction is not necessarily always desired, and the uneven reproduction equalization of analog recorders or the ability to record at levels above 0 dB (to produce desirable distortion) is often exploited advantageously, such as the "fat" sound of a kick drum on analog tape. DASH recorders included a specialized circuit called "Emphasis" which was intended to help overcome the noise of analog to digital and digital to analog converters of the time by boosting high frequencies on the front end. This circuit required de-emphasis on playback after the DAC as well for accurate reproduction. While emphasis was almost a necessity in earlier units, the circuit, of course, had a sound of its own and was used less and less as converter design improved.There were three families of DASH recorders produced by Sony and Studer, with few differences among them: 2 track: PCM-3402, PCM-320224 track: PCM-3324, PCM-3324A, PCM-3324S48 track: PCM-3348, PCM-3348HR, and the Studer D820 and D827TASCAM also produced a 24-track DASH recorder, the DA-800/24.With the exception of the Sony PCM-3348HR and Studer D827, all of the DASH recorders have 16-bit resolution with a 44.1 kHz or 48 kHz sampling rate, although it is possible to use an outboard analog-to-digital converter of up to 20-bit resolution. The PCM-3348HR and D827 are capable of 20-bit 96 kHz operation, and are the only machines that still find significant use today, often in only the highest-end studios for music and film production. All DASH recorders primarily use the SDIF-2 (Sony Digital Interface Format-2) as a digital interface, which is slightly different than the S/PDIF / AES-EBU that nearly all other digital audio recorders use, but is technically superior because SDIF-2's word clock is not multiplexed into the bitstream. Because SDIF-2 is often only found on the expensive DASH recorders, it is also often only found on the highest-end mixing consoles, such as those made by Solid State Logic.".
- Digital_Audio_Stationary_Head wikiPageID "981551".
- Digital_Audio_Stationary_Head wikiPageRevisionID "542599777".
- Digital_Audio_Stationary_Head hasPhotoCollection Digital_Audio_Stationary_Head.
- Digital_Audio_Stationary_Head subject Category:1982_introductions.
- Digital_Audio_Stationary_Head subject Category:Audio_storage.
- Digital_Audio_Stationary_Head subject Category:Digital_audio.
- Digital_Audio_Stationary_Head comment "The Digital Audio Stationary Head or DASH standard is a reel-to-reel, digital audio tape format introduced by Sony in early 1982 for high-quality multitrack studio recording and mastering, as an alternative to analog recording methods. DASH is capable of recording two channels of audio on a quarter-inch tape, and 24 or 48 tracks on 1⁄2-inch-wide (13 mm) tape on open reels of up to 14 inches.".
- Digital_Audio_Stationary_Head label "Digital Audio Stationary Head".
- Digital_Audio_Stationary_Head label "Digital Audio Stationary Head".
- Digital_Audio_Stationary_Head label "Digital Audio Stationary Head".
- Digital_Audio_Stationary_Head label "Digital Audio Stationary Head".
- Digital_Audio_Stationary_Head sameAs Digital_Audio_Stationary_Head.
- Digital_Audio_Stationary_Head sameAs Digital_Audio_Stationary_Head.
- Digital_Audio_Stationary_Head sameAs m.03wf3w.
- Digital_Audio_Stationary_Head sameAs Q497444.
- Digital_Audio_Stationary_Head sameAs Q497444.
- Digital_Audio_Stationary_Head wasDerivedFrom Digital_Audio_Stationary_Head?oldid=542599777.
- Digital_Audio_Stationary_Head isPrimaryTopicOf Digital_Audio_Stationary_Head.