Digital & Analog

CSound is a suite of programs developed by Barry L. Vercoe at the 
Experimental Music Studio,Media Laboratory, 
M.I.T., Cambridge, Massachusetts

Vinyl Conversions – In the course of learning to use CSound, I came to realize those old 78 RPM records could be digitized using CSound’s ability to stretch and shrink sounds. Using CSound, I played a 78 RPM record on a turntable using either the 45 RPM or 33 1/3 RPM speeds and recorded onto the computer .The sound card was connected to an old Sansui power amp along with an old Radio Shack Technics turntable. The CSound software allowed me to compensate for the differences between the platter’s recorded speed vs the played speed. The net result is the ability to transfer old 78’s to MP3 format and apply sophisticated noise reduction algorithms in the process. 
The possibilies are many. Power hum (60hz) can be filtered out. Any one of the many filters can be applied to reduce noise or enhance the music. I applied a Butterworth filter in my case. CSound’s “sndwarp” opcode introduces too much distortion and was bypassed. Csound will load a 44100 file into an orchestra with a 10000 sr and write at the 10k rate. Recording at a standard 44100 and loading into a sr compensated orchestra with time period compensation will accomplish the 75–33 1/3 transformation needed.
See “In_441-to-988.csd” and “In_988-to-441.csd”. 
Bob Wills and his Texas Playboys –Silver Dew on the Bluegrass Tonight
– Lyrics – 
Mills Brothers – Tiger Rag
Riley Puckett – Cradle in Carolina
  SHARC Orca – At one point in time, there was a database, Sandell’s Harmonic Archive, placed online by a researcher at one of the universities . The database contained the characteristic parameters of most musical instruments in the common orchestra. The database disappeared one day. I happened to run across the data again in 2004 at

These may no longer be online..
I adapted the data for use with CSound and the results are here. There are missing notes for some instruments. The work was incomplete when, I imagine, funding ran out.
What is here is a set of orc-sco files and csd files for use with CSound or CSoundAV (by Gabriel Maldonado.)
I’m making available my SHARC-CSoundadaptations. A CSD and ORC file for each instrument.I used to play these with the computer keyboard and a program called “MIDI-OX” by Jamie O’Connell and Jerry Jorgenrud. An additional program may be useful for keyboard playing; “Hubi’s Midi Cable”. Both are freeware for personal use. Since restoring a ’69 Hammond, I don’t use them much anymore.

The original README file for SHARC *SHARC – Database of musical timbre information


My Hammond H182 Console Organ – A couple of years ago, I was at a Salvation Army second hand store (“thrift shop”) and spotted an old organ in the middle of the floor. I paid a deposit came back several weeks later, after having built a platform for transport and after soliciting my brother’s help. The organ weighs over 300 lbs.
Lifting was out of the question except in sm. The platform was a 1″ sheet of plywood with 3″ casters, two of which are lockable, and several straps with rachets. Surprisingly, the platform cost more than the organ did. The platform cost over $100 dollars and the organ was only $50 dollars. A good deal anyway. The organ still had a tube of the manufacture’s oil stashed inside the cabinet. I replaced the cord. The effect selector switch for the lower manual (keyboard) would not stay in position. After searching the net, I located an image that gave me an idea on how to approach removing the lower manual for repair. The selector now works. The material below is the result of searching the internet. The are three websites that I consider to have been the most important with regard to the organ restoration, the first most important:

A List of Schematics and Diagrams in image form



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