Don Buchla - Buchla 400
  Year :   1982
  Location :   USA
  Worktype :   Electronic musical instrument
  Materials:   -
  Info :   -





 
Architecture
  Work Details  
  The 400s unique architecture features three computers, each of a different nature, and each optimized to its particular function. SERVING AS THE NERVE CENTER OF THE INSTRUMENT is a general purpose digital computer. Programmed to perform user communication, data handling, and supervisory control, this host computer may be reprogrammed to realize future musical needs or alternative instrumental concepts. Receiving instructions and data from the host, a second computer (called the multiple arbitrary function generator), directs the progress of 64 acoustic parameters, each with a time resolution of 1/1000 of a second. This facility enables precise specification of complex sonic detail and offers expanded possibilities for expressive articulation. A third computer, this one a pipeline digital signal generator, produces the instruments six voices. Built into this computer are unusually powerful algorithms for timbre generation, including frequency modulation, waveshape interpolation and timbre modulation (unique to the Buchla, this technique significantly augments the electronic vocabulary). Gating and filtering are performed by voltage-controlled analog circuitry, providing a dynamic range exceeding 90 dB. Specialized phasing and location circuitry provides unusual depth and imaging in the resultant acoustic field and enables independent location of each voice in stereo space. Accessed 31.05.2007 from http://www.buchla.com