| 释义 |
bitstream, n. Electronics.
Brit. |ˈbɪtstriːm|, U.S. |ˈbɪtˌstrim|
[‹ bit n.4 + stream n.]
1. Freq. in forms bit stream, bit-stream. A stream of data in binary form. Cf. stream n.
1961Flight 79 431/2 A digitizer converts the signals into a serial bit stream of binary data for transmission. 1972Sci. Amer. Sept. 138/3 Coaxial cables can carry the bit stream directly at ‘baseband’, that is, without modulation of a carrier signal. 1992EBU Techn. Rev. Autumn 64/1 It is convenient in practice to use standard multiplexing arrangements which..mean that eight signals are carried in the bit-stream. 1994Denver Post 2 Jan. h5/4 Modems are devices that allow..computers to communicate over telephone lines, converting a computer's digital bitstream into analog waves and back again. 1997New Scientist 10 May 40/1 (caption) The Schlüsselzusatz 40 split messages into five bitstreams and passed each one through two coding wheels.
2. Also with capital initial. A system of digital-to-analogue signal conversion used in some audio CD players, whereby the signal from the CD (which consists of a stream of 16-bit words) is first processed digitally to give a stream of single-bit words at a higher frequency. Freq. attrib.
1989Q Dec. 183/3 Some of the questions asked repeatedly over the four days of The Hi-Fi Show concerned Bitstream, the new piece of CD electronic trickery which promises to make CDs sound like ‘real records’. 1991Daily Tel. 14 Dec. (Weekend Suppl.) p. x/2 There are fine bitstream players (the Rotel RCD-965, or the Pioneer PD-8700, both {pstlg}299), but also stunning ones still using what the fickle might regard as old technology. 1998What Hi-Fi? May 94/2 Bitstream digital-to-analogue converters process single bits of digital data much faster than multibit DACs, which work on chunks of digital data. 2001Total DVD 6 Feb. 87/2 You can toggle the audio settings, choosing between bitstream or PCM output for Dolby Digital and MPEG-2, as well as turning DTS off. |