Yamaha DME32 DME32 Owners Manual - Page 287

Glossary 287 Glossary ADAT interconnect format-The digital audio interconnect format typically found on ADAT-compatible digital audio equipment. Eight channels of digital audio are carried per fiber-optic connection using Toslink connectors. AES/EBU interconnect format-The digital audio interconnect format, established by the AES (Audio Engineering Society) and EBU (European Broadcasting Union), for transferring digital audio data between professional digital audio equipment. Two channels of digital audio (left/odd and right/even) are carried per balanced line. Bessel-A type of filter characterized by its virtually linear phase response (i.e., the amount of phase change is the same for all frequencies within the pass band). Although it has a more gradual roll off than a Butterworth filter, it will pass a square wave without causing ringing. See also Butterworth and Linkwitz-Riley. Butterworth-Being the most common type of filter, filters are typically always Butterworth, unless otherwise stated. It has a flat pass band and a -3 dB gain at the cutoff frequency. See also Bessel and Linkwitz-Riley. Cable mode-The DME Manager mode for wiring components. Compiling-The process of translating a configuration into information that the DME32 can understand. Configurations must be compiled before they can be saved or transferred to the DME32. Component-Components form the building blocks in DME32 configurations. Some components are complete audio processors, such as mixers, compressors, effects, and crossovers, while others are individual parts, such as faders, switches, pan controls, and meters. Custom components can be created using User modules. Configuration-The arrangement of components and wires that makeup a DME32 audio system. The DME32 can store two configurations: A and B. DSP (Digital Signal Processor)-A chip designed specifically for processing large amounts of data at high speed and in real time, ideal for digital audio processing. Edit mode-The DME Manager mode used to build and edit configurations. Also used to edit and preview scenes offline. Emergency mode-The mode in which all DME32 outputs are muted and the EMERGENCY indicator lights up. One GPI input can be assigned to emergency, and when that input is triggered, Emergency mode is engaged. Firmware-Software that is stored in Read-Only Memory (ROM). The DME32's system software is stored in flash ROM, a special type of memory that can be reprogrammed. FS-Abbreviation for sampling frequency or rate. GPI (General Purpose Interface)-The DME32 GPI interface allows remote interaction with custom-made controllers and other equipment, with 16 GPI inputs and 16 GPI outputs. Initial settings-The settings used when a device is first turned on after leaving the factory. Also known as the default, or factory settings. Linkwitz-Riley-This filter offers slopes of 12 dB, 24 dB, 48 dB, etc. When the output signal from its LPF and HPF are combined, the gain over the entire range is flat. Like the Butterworth filter, it has a flat pass band. The gain at the cutoff frequency is -6 dB. See also Bessel and Butterworth. DME32-Owner's Manual