The Eat at Joe's K5000 Wav Resynthesis Project
Strings


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Strings
 Monday, 19-Oct-98 21:56:12 

      209.160.126.63 writes:

      Over the weekend, I created some string patches for my K5. I was wondering what
      approach some of you used for the attack when you create bowed insruments. For
      me, I use the pitch envelope to start one of the sources flat then bring it
      quickly up to pitch. This seems to help recreate the "chiff" you hear at the
      beginning of the bowed sound. Also, because I only use the pitch envelope for one
      of the sources, I get an inharmonic sound at the beginning just like the real thing.
      However, from what I've read, the pitch of stringed instruments should start out
      sharp rather than flat. I know this applies to plucked instruments, but how about
      bowed? When I try this, it just doesn't sound as realistic.

      Also, what kind of waveforms do you use? If I were using an analog synth, I would
      use PWM. But since my K5 doesn't have that, I use a saw wave.

      BTW, I remember seeing someone mention that the K5000 has saw waves that are out
      of phase with each other. Has anyone used them to create PWM?


      Leslie 

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Re: Strings
 Wednesday, 21-Oct-98 11:29:00 

      192.28.2.16 writes:

      I've only done string pads, so I don't know about the attack, but the waveform is
      generally a saw. It typically has some extra "saw motions" within each saw cycle;
      a jagged saw. Try something like A(n)=(1/n)(cos(Pi*n*31%)).

      >BTW, I remember seeing someone mention that the K5000 has saw waves that are out
       of phase with each other. Has anyone used them to create PWM?

      It's a PCM wave, I think it's "Saw 3", and its an inverted Saw 2. I think it's in
      the digest, under examining waveform traces. I think Jens picked it out of Kenji's
      traces. That's a nice undocumented feature.


      leiter 

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String Pad patch
 Friday, 23-Oct-98 00:32:59 

      199.86.33.8 writes:

      I sent in a new patch:

      SolinaPd: An analog string-synth style pad.

      The waveforms come from:
      A(n)=1/n + (1/n)(cos(Pi*n*X%)^21)
      where X is 34% for one and 25.5% for another.
      This came out of trial and error, looking for waveforms with the right "sawteeth".
      Also, some information from Future Music. They've been printing some great
      articles lately by Matt Thomas about analog patches. 

      leiter 


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