missing link in audio systems

Almost a year ago in the April 78 issue of Elektor, the tenth and final instalment in the series on the Formant music synthesiser was published. Since then there have been two additional articles -one for a 24 dB VCF, the other describing a resonance filter module (see Elektor no.s 41 and 42) -which rounded off the design of the basic system. In the interim period many readers have gone ahead and completed construction of the Formant; thus it now seems a good time to take stock of the project and to examine the possibilities of future contributions on this theme.