Mellotron/sample/wave type question.

[jorgen.bergfors at idg.se]

Well, the problem is that if you extract single cycle waveforms you will kill the animation in the sound. You could create new animation by sweeping the wavetable, but it won't sound at all the same. Maybe useful, but it will sound nothing like a Mellotron.

/Jorgen





MIME:space_banana at hotmail.com on 98-11-24 13:25:13
To:  synth-diy at mailhost.bpa.nl @ SMTP cc:  (bcc: Jorgen Bergfors/IDGSE)
Subject: Mellotron/sample/wave type question. 

Dear all,

  I have for many years admired the sound of the mellotron choir, as no doubt have mosy of you, does anyone have the means of supplying me with a good high quality sample (44.2Khz+) of this sound, it needs to be say about 5 seconds long.... let me explain why..

   What I would like ot do is extract single cycles of waveform from the sample (say ooo, 64 bytes per sample) and space these xtracts every say 50-60 cycles, (can you see whats comming yet?).

   So I would end with say 128 64byte samples, which I may be able to fit onto an eprom and use as a complete wave table... now I know this is boring and you may say why not use a sampler, but I dont like doing things the easy way, you know?
   All you software people it may be fun to write a program that spaces 128 waves (or more) over the length of the sample and extracts these numbers into a table ready to be put on an eprom.

   In theory (he we go, flame throwers at the ready) this would lead to an almost perfect playback at whatever note you played.. as the time for the sound would be controlled by a CV from say an EG and NOT by the speed of playback of the sample..

    Next question,

      Am I nuts?


   TTFN %-P

   Paul MADdox



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