- Industry: Computer; Software
- Number of terms: 54848
- Number of blossaries: 7
- Company Profile:
Apple Inc., formerly Apple Computer, Inc., is an American multinational corporation headquartered in Cupertino, California, that designs, develops, and sells consumer electronics, computer software and personal computers.
In digital audio, an opaque data structure for transporting audio format metadata. For audio formats that use them, such as AAC, a magic cookie is produced during encoding, accompanies the data stream that it describes, and is employed during decoding. Magic cookie data is not accessed directly, but rather via a codec-specific interface.
Industry:Software; Computer
A dimensionless unit for expressing the ratio of two quantities, abbreviated as dB. The decibel difference between two power levels is equal to 10 times the common logarithm of their ratio. The decibel difference between two voltage levels is equal to 20 times the common logarithm of their ratio. Decibel values are typically associated with a standard voltage or power level. For example, acoustic levels are commonly referenced to 0 dB SPL, equivalent to 20 µPa (micropascals). See also SPL.
Industry:Software; Computer
The calculation of intermediate values relative to known beginning and ending values.
Industry:Software; Computer
In AppleScript, the first occurrence of a variable or property identifier in a script. The form and location of the declaration determine how AppleScript treats the identifier in that script—for example, as a property, global variable, or local variable.
Industry:Software; Computer
In audio, to retrieve the original signal from an encoded representation of it. For lossy encoding schemes such as MP3, the retrieved signal approximates the original signal. See also codec (coder/decoder), encoding.
Industry:Software; Computer
The transformation of ciphertext back into the original plaintext. Compare encryption. See also asymmetric keys, symmetric keys.
Industry:Software; Computer
The window that is the focus of the user’s actions. It may accept keyboard input itself or may work in conjunction with a key window. For example, a text editing document would be a main window when a user is actively typing or modifying text in it.
Industry:Software; Computer
The time lag between one audio event and another. In audio processing, the second event is typically a processed or unprocessed copy of the original event. Delay is a settable parameter in the AUDelay audio unit included in Mac OS X.
Industry:Software; Computer
(1) Computer hardware, typically excluding the CPU and system memory, that can be controlled and can send and receive data. Examples of devices include displays, disk drives, buses, and keyboards. (2) In audio generally, a piece of equipment or a software entity that produces, transforms, transmits, receives, or stores audio data. In MIDI, a piece of equipment or a software entity that responds to MIDI control or provides MIDI data. In Audio Queue Services, a source or destination for audio, such as a microphone or a loudspeaker.
Industry:Software; Computer
A window designed to elicit a response from the user. See also alert.
Industry:Software; Computer
