有人用pc发DMX512信号吗？

casinosun 2009-12-10 04:47:51

复位信号怎么发？接收时怎么收，用标准PC串口行吗？还是要其他的卡？

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暖眸 2010-12-30

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谁有实例代码。看一看。c 或c# 的都行

一条晚起的虫 2009-12-14

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// 既然这样，标准PC串口加一个RS232/RS485转换器就行了。

liuchaotao 2009-12-13

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DMX512协议是由USITT（美国剧院技术协会）发展的控制台用标准数字接口控制调光器的协议。在接口上用485接口，可以用一个232-485的转接头转换。对于PC机而言，加了转接头后就可以用标准的RS-232接口编程控制，只不过要遵照DMX512的数据协议。

一条晚起的虫 2009-12-10

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// what's the DMX512?

iDR SERIES WHAT IS IT? 2 The iDR is a 16 x 16 matrix mixer with an extensive array of audio management tools designed to reduce the need for additional devices to be specified for an installation, or carried in the hire inventory. Pedigree ALLEN&HEATH preamps, 24bit converters and fixed DSP architecture ensure that concert-quality low-latency sound is delivered efficiently to where it is needed. iDR SERIES WHY IS IT SO USEFUL? Anyone with a basic knowledge of traditional console and outboard equipment will be able to design a distributed audio system on their PC using the ‘mixer’ based iDR System Manager software - download it free from www.idrseries.com. iDR comes loaded with flexible DSP tools, essential in sound system configuration and installation. Input & output delays, 4- and 8-band parametric EQ, automatic microphone mixing, frequency conscious dynamics, look-ahead limiter, ambient noise compensator, crossfader and much more are available at your fingertips without having to worry about running out of DSP. Its system of presets allow for full recall of the whole system or individual parameters at the touch of a button. After programming, the iDR unit operates as a stand-alone system controller, with a host of remote control devices available for day-to-day operation. The PL Series complements the powerful features of iDR and comprises wall plates, infra-red hand-held or desk mount controllers connecting to the main unit using CAT5 cable over the RS485-based proprietary PL-Anet bus, while all the major third party devices may also be used to control iDR. For complex systems, the iDR system can be driven in real time by a PC via an Ethernet port, allowing the iDR to be used in hire/live audio situations such as matrix distribution in theatres, or clean feed system for an outside broadcast. Why not connect a WiFi card to your laptop, connect to the internet, set up your system and save your settings on the move? Stay in control from anywhere in the world! Network control The main iDR units can be easily controlled and programmed with an Ethernet connection to a PC [or MAC running OSX & PC simulator]. All iDR units on a network can be ‘seen’‚ by more than one computer, with optional password protection so that operators can be observed by a technician running iDR System Manager software - or PL Client software - anywhere on the network or World Wide Web. iDR can even output a log of its activities to an email address! Proprietary TCP/IP devices such as ‘WiFi’‚ can be used for cost effective and practical uses; for example, a ‘wireless laptop’‚ can be used to commission or update the sound system from exactly where the technician needs to monitor it. Preset System iDR provides a system of up to 250 presets for total recall of system settings. A preset can contain the settings for all system devices, e.g. a default preset to set the entire system on power-up, or individual devices can be selected for exclusive change in a preset, e.g. a single EQ or fader gain level. A recall crossfader is provided to fade between different preset levels. Sheduled preset recalls are available, timed from the iDR internal clock. Preset recalls can be triggered from ALLEN&HEATH equipment (PL controllers other iDR's or iDR-Switch) or via the serial, MIDI and Telnet ports using third party equipment. PL-Anet The PL Series is the perfect interface between the iDR and the operators on site, providing simple, non-technical switch, indicator display, fader, IR and encoder control options. Furthermore, as the requirements grow at an installation, the control system can too. PL remotes can simply daisy chain or use the ‘PL-Anet’ hub for star wiring applications, and all cabling is CAT5. You as the designer can customize these ‘plug-n-play’ remotes to do exactly what the customer needs. Each PL has its own simulator in iDR System Manager software, so you can design and demo the system offline as it will appear when the hardware is in place. Automatic Level Management iDR is equipped with several powerful modules to manage a distributed sound system, so an operator or technician doesn’t always need to be present. For instance: Q Microphones in a conference situation can be controlled by any one of the four on-board AMM’s, so that as more open microphones join in, the gain of the sum is reduced to prevent feedback occurring. Q A comprehensive Ducking system is provided with adjustable priorities. Q Ambient Noise Compensator (ANC) enables the output level in a zone to be automatically managed in relation to the signal level of the changing background noise level Q Level Sensing provides a logic or soft LED output when a pre-set signal threshold is reached, which triggers indicators and other hardware to respond; this allows operations such as camera following. Q 2 independent paging systems are provided, with paging to selectable outputs. Paging switches and indicators can be triggered via A&H controllers; alternatively, custom paging panels can be created and interfaced with the system. Expandability As the system requirements grow, additional iDR units or expanders can be added to suit the budget and application. iDR-8 and iDR- 4 have 8-buss digital expansion ports (RJ45) to allow units to be daisy-chained together, or to add an iDR-In or iDR-Out 8-channel expander. The CAT5 cables allow the units to be placed at distances up to 250m apart, allowing, for example, the iDR-In to provide 8 XLR mic/line inputs in a function room on a different floor to the control room containing the main iDR unit, or, similarly, the iDR-Out could be configured as a four-way-stereo XLR output to an amp rack located at the side of a theatre stage. Furthermore, the 8-buss link can be used to distribute signals around a complex network where iDR units communicate via TCP/IP - here, interbox paging and routing is possible. Audio Quality Low latency [2.23ms from input to output] and a fixed DSP architecture ensures that the iDR system will distribute coherent audio no matter how many modules of DSP are used in the system. Mic preamp gain is controlled in analogue under software control so levels can be optimised in real time if needed. iDR-8 has a hardware limiter before the A-D converter so that the contractor can have confidence in the signal integrity, even if input levels exceed what was expected. Signal Processing The iDR-4 & iDR-8 signal processing architectures provide 16 channels of input processing and 16 channels of output processing, centred around the 16x16 mix matrix. Using the DSP patchbays, the user can configure these channels to either analogue inputs/outputs or to channels on the digital audio expansion port. Because of the fixed architecture, you do not need to assign DSP into the signal path, or worry about having enough DSP available to do the job. In iDR, we have given you the tools you need such as noise gates, compressors, delays, parametric EQ and look-ahead limiters, to start working with live audio straight away. Adjustments are made in real time as there is no compiling to do, and our unique monitor buss allows you to listen to any point in the signal path. Copy and paste any DSP settings to quickly build up a design, save it as a configuration file, and use it as a template for other systems. MIDI iDR-8 is equipped with MIDI in/out/thru and custom MIDI commands can be output as presets and recalled on the iDR. This allows other audio devices such as samplers and processors to be controlled from the main unit. For example, dynamic MIDI control from faders, rotary controls and keys in the iDR system could interface with a DMX controller, so that basic lighting control can be programmed into iDR and run from the PL series remote controllers.

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