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Entries found for search: bit

bit : Binary digIT. The representation of data using base-2 arithmetic, i.e., a series of ones and zeroes. Digital audio is encoded in words that are usually 8, 12, 16, 20 or 24 bits long (the bit depth). Each added bit represents a theoretical improvement of about 6 dB in the S/N ratio.

BITC : "Burnt-In Timecode." Video that shows the SMPTE time on-screen in a window along with the picture, eliminating the need to watch a time-code reader. Accurate in still-frame. Sometimes called a "window dub."

bit depth : The number of data bits used to encode each sample point. Bit depth determines the accuracy of a sampler, converter, or other digital device in capturing momentary changes in a soundís amplitude. Typical bit depth is 16 bits, which is good for capturing loud sounds, but less good for sounds in a quieter range. Also called bit resolution.

bite : A subjective term for the sharp onset or attack of a musical instrument, especially brass instruments. Excessive bite can result from positioning microphones too close to the instrument or from distortion caused by a momentary overload. See attack transient.

bit resolution : See bit depth.

bit shifting : A technique for lossless compression which, rather than encoding the entire data word, only bit cells with data (ones) are stored, and the null data (zeroes) are removed. For example, if only 19 bits of a 24-bit word contain data, only those bits are transmitted.

bit-splitting : A feature on some A/D converters, digital recorders, DAW or other digital devices to choose word lengths to accommodate various output channels, such as a choice between six outputs at 20-bit resolution, or four output channels at 24-bits per sample.

channel bit rate : The actual bits being read from a digital medium are greater than the number strictly required to encode the audio signal. This is because of ECC and synchronization bits, etc. For example, with a CD, the audio bit rate is 1.41Mbps, but the channel bit rate is actually three times as high, 4.32Mbps.

subito : Italian for "suddenly," as in subito É, suddenly loud.

stop bit : In serial data transmission, the use of an extra bit to followprecede the data bits which serves to alert the receiving device that the flow of data has stopped. See start bit.

start bit : In serial data transmission, the use of an extra bit to precede the data bits which serves to alert the receiving device, to preparinge it for data to follow. See stop bit.

Super-Bit Mapping™ (Dire : A type of dithering method forof encoding DSD-format audio information for playback on standard (16-bit) CDs. Developed by Sony, the new version of SBM, SBM Direct accepts a DSD input signal (16-bit PCM) and produce an output encoding with a (claimed) 20-bit resolution through a one-pass noise-shaping/decimating process which uses a very complex FIR reconstruction filter. SBM Direct is being developed by Sony in an effort to make their SACD format successful against DVD-A, as SACD players will offer playback of conventionally recorded CDs with enhanced audio quality. See also HDCD.

user bits : (1) A group of 32 bits within the 80-bit SMPTE timecodetimecode message which is available to users for their own purposes, such as recording tape identity numbers, dates, etc. (2) Also, a System-Exclusive message of the real-time type which implements the SMPTE timecodetimecode message described in user bits.

Framing Bits : Header and trailer structures that delimit the start and end of a frame of data.

GIGE, GIG-E (GIGABIT ETHERNET) A shorthand way of saying ď1000BASE-T.Ē See IEEE802.nx"

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