| IMAGO Record can only record and process channels which have been defined by an instrument. Each instrument not only defines a name for each channel but also parameters like offset, information about the physical unit and delay. Additional instrument specific parameters can also be defined. IMAGO Record supports the following amplifiers: Madaus EEG / EMG amplifier Wireless PowerPack Wireless Pedalforce Measurement If no amplifier is available, please use the Channel Definition Instrument for your entries about the connected signals. The channel names are necessary for the recording. The selection of instruments is done via menu bar Extras -> Options. In In sync with the analog signals, digital triggers are recorded. Since the analog signals are buffered, the digital trigger signal is also recorded as analog signal to match the timing of the analog signals. A converter is available for STIMULI to generate the necessary analog signal. The maximum negative analog amplitude is equal to digital trigger signal 0. The maximum positive analog amplitude is equal to the maximum digital trigger. With the aid of the digital trigger information, recorded signals can only be written to file if the signals are useful for the further processing. This can dramatically reduce disk space. Besides pure recording of signals, IMAGO Record provides online processing functionality. Online processing requires a digital trigger input. Triggered with the occurence of certain digital triggers, signal pieces can be cut and processed while the recording is running. The functions which are available while recording are limited to two channels, each with one trigger condition. A rotating buffer is used while recording to process the last X signal pieces. The complete online processing can be done after finishing the recording. See chapter Online Processing for more information.