digital data stream
21Digital video fingerprinting — Video fingerprinting is a technique in which software identifies, extracts and then compresses characteristic components of a video, enabling that video to be uniquely identified by its resultant “fingerprint”. Video fingerprinting is technology… …
22Digital watermarking — An image with visible digital watermarking the text Brian Kell 2006 is visible across the center of the image Digital watermarking is the process of embedding information into a digital signal which may be used to verify its authenticity or the… …
23Digital Compact Cassette — For other uses, see DCC (disambiguation). Digital Compact Cassette Media type Magnetic tape Encoding Precision Adaptive Sub band Coding (MPEG 1 Audio Layer I) …
24Digital recording — Audio levels display on a digital audio recorder (Zoom H4n) In digital recording, digital audio and digital video is directly recorded to a storage device as a stream of discrete numbers, representing the changes in air pressure (sound) for audio …
25Data buffer — In computer science, a buffer is a region of a physical memory storage used to temporarily hold data while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a… …
26Digital milliwatt — In digital telephony, the digital milliwatt is a standard test signal consisting of eight 8 bit words corresponding to one pulse code modulated cycle of a sinusoidal signal approximately 1 kHz in frequency and one milliwatt in power. The digital… …
27Digital transmission group — In telecommunication, a digital transmission group is a group of digitized voice or data channels or both with bit streams that are combined into a single digital bit stream for transmission over communications media. Digital transmission groups… …
28Comparison of analog and digital recording — This article compares the two ways in which sound is recorded and stored. Actual sound waves consist of continuous variations in air pressure. Representations of these signals can be recorded using either digital or analog techniques. An analog… …
29Digital signal processing — (DSP) is concerned with the representation of discrete time signals by a sequence of numbers or symbols and the processing of these signals. Digital signal processing and analog signal processing are subfields of signal processing. DSP includes… …
30Ancillary data — (commonly abbreviated as ANC data), in the context of television systems, refers to a means which by non video information (such as audio, other forms of essence, and metadata) may be embedded within the serial digital interface. Ancillary data… …
