The Elster module is a Eurorack compatible cymbal percussion module based on the sound ROMs and analog circuitry of the classic 909 drum machine. It plays one of those ROMs and you can select which of them: Ride, Crash or Hihats.
Elster offers a pitch slider controller and a bipolar CV input for the playback speed of the samples. It has a switch for the pitch range so you can stay in a more limited range as the original or extend the range for more experimental sounds.
Elster offers a Decay slider and a bipolar CV input to control the envelope length for the sample playback. The Decay control has a macro functionality in hihat mode opening the open hihat slightly earlier than the closed hihat.
In Hihat mode the red print shows the alternate functions of some UI elements. When the Hihat ROM is selected the trigger input triggers the closed hihat and the reverse toggle input triggers the open hihat. Pressing the reverse button doesn’t reverse the sample playback but swaps the trigger assignment. This is a very cool performance tool that can alter your hihat pattern drastically with a simple press of a button. The decay envelope slider works in a sort of macro functionality opening the open hihat slightly earlier than the closed hihat. Which is a compromise of keeping the module small and having separate control. The hihat mode is an add on to this cymbal module, so we chose to do this that way and not increase the module in size.
The Mojo switch was added to give the output of the module a colorisation, so that the output sits a better in a mix. This was added because very often Eurorack sound sources are mixed in the case without preamp drive or EQing. Mojo doesn’t replace careful EQing in a production but helps to put the cymbals in their spectral place.
The Accent input is a gate input. The sound will be played accented while the accent gate is high.
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