Comments on "Signal processing for the multistate myoelectric channel"

This communication is a reply to statements made by Parker et al. regarding work by Graupe et al. on myoelectric multistate signal processing. In particular, it aims to correct the misconception in [1] that the work by Graupe et al. is based on using several electrode sites and that no attempt was made at evaluating performance, noting that the single electrode-site aspect was, and is, fundamental in that work.