eMic
The eMic is currently getting a makeover. In the meantime here’s a quick blurb about Donna Hewitt’s eMic:
Since 2002 Donna Hewitt and Ian Stevenson have worked to transform the common vocal microphone into a standalone musical instrument. As a vocalist Hewitt had been frustrated by the lack of control she had over effects and processing placed on her own voice. Imagine if a guitarist’s rack of effects pedals were operated by someone else! So in response Hewitt and Stevenson collaborated to produce the eMic (Extended Microphone Interface Controller), an adapted microphone and stand that gives vocalists direct control over what is happening to their voice between entering the microphone and being sent out over the PA.
The eMic is still in development, but early versions use a number of switches attached to the microphone and sensors mounted onto the stand. By operating the switches and tilting and rotating the mic-stand – movements that match the natural choreography of many singers – players are able to select various audio processes (filtering, reverb, distortion, granulation, delay), shaping the extent of processing placed on their vocal signal. Hewitt’s live music performances blend environmental and processed sounds, live audio and her own vocalisations. Importantly, the eMic enables Hewitt to perform out front, in a more natural position, rather than being stuck sitting next to a laptop. Audiences can see a direct connection between her actions and the sounds that emerge – where the use of technology becomes tangible.

Footage of various performances with the eMic, way back in 2004.