See also scan code.Īttack The start phase of a sonic event. When you type ASCII characters on the keyboard, the computer interprets them as binary so they can be read, manipulated, stored, and retrieved. A standard computer character set, allowing computers to deal with text characters. Audio Apple Loops also contain transients that are used by Logic Pro for time-stretching and pitch-shifting tasks.ĪSCII Acronym for American Standard Code for Information Interchange. Apple Loops contain tags so you can quickly locate files by instrument, genre, or mood in the Loop Browser. See also Audio File Editor.Īpple Loops Prerecorded audio or MIDI regions commonly used for recurring rhythmic musical elements or elements suitable for repetition. Compare digital.Īnchor point The start point of the audio file that an audio region is based on. Analog signals must be digitized, or captured, for use in Logic Pro. If you have an audio signal, amplitude refers to the volume of the sound, measured in decibels (dB).Īmplitude peak The loudest point of an audio signal.Īnalog signal Refers to audio data that consists of an endlessly varying voltage level. Alternatives for the current project appear in the File > Alternatives submenu.Īmplitude A term used to describe the amount of a signal. Alternatives are saved as part of the project, and share the same assets. Sometimes called amp for short.Īlternative A different version of a project, with a unique name and different settings. See also Browsers.Īllpass filter A filter that allows all frequencies to pass, providing only phase shift or phase delay without appreciably changing the amplitude characteristic.Īmplifier A device that increases the level of a signal. An alias can’t be edited directly however, any change to the original region also affects the alias.Īll Files Browser One of the browsers in the Browsers area used for file management and data import tasks. You can create an alias by Option-Shift-dragging a MIDI region to a new location. An alias doesn’t contain any MIDI data, but points to the data of the original MIDI region. An encoding/decoding algorithm that delivers lossless audio compression.Īlias A pointer to a MIDI region in the Tracks area. AIFF audio can use a variety of bit depths, most commonly 16- and 24-bit.ĪLAC Abbreviation for Apple Lossless Audio Codec. A cross-platform file format supported by a large number of digital audio and video editing applications. Aftertouch is also known as key pressure or pressure sensitivity.ĪIFF Abbreviation for Audio Interchange File Format. There are two types - channel aftertouch, the value of which is measured by a full length keyboard sensor and that affects all played notes, and polyphonic aftertouch, which is individually measured and transmitted for each key. See also S/P-DIF.Īftertouch A MIDI data type generated by pressure on keys after they have been struck. Depending on the type of devices involved, AES/EBU and S/P-DIF coaxial interfaces can communicate directly. The format is similar to S/P-DIF, but uses balanced line drivers at a higher voltage. This association has a standard transmission format for professional stereo digital audio signals also called AES/EBU. ADAT optical is a well-established standard for digital multichannel interfaces.ĪES/EBU Abbreviation for Audio Engineering Society/European Broadcasting Union. The ADAT is an eight-track digital multitrack cassette recorder that uses an S-VHS video tape to record audio at 16- or 20-bit depth.ĪDAT optical An optical interface for parallel transmission of eight audio channels via fiber optic cable. A device that converts an analog signal to a digital signal.ĪDAT Abbreviation for Alesis Digital Audio Tape. See tempo.ĪD converter (ADC) Short for analog-to-digital converter. A cross-platform, project exchange file format you can use to import multiple audio tracks, inclusive of references to tracks, time positions, and volume automation.Īccelerando A gradual increase in tempo. A compression and decompression algorithm and file format for audio data.ĪAF Abbreviation for Advanced Authoring Format. AAC Abbreviation for Advanced Audio Codec.
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