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    <div class="moz-cite-prefix">There was the tape based solution,

      invented in the 1920s. (see

      <a class="moz-txt-link-freetext" href="https://valhalladsp.com/2010/05/04/pitch-shifters-pre-digital/">https://valhalladsp.com/2010/05/04/pitch-shifters-pre-digital/</a>) I

      remember a photo from the WDR Electronic Music Studio, where Karl

      Heinz Stockhausen used one, which had 12(?) playback heads on a

      rotating plate. But I don't find the picture at the moment.<br>

      <br>

      Am 06.10.24 um 20:44 schrieb Tom Wiltshire:<br>

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    <blockquote type="cite"

      cite="mid:D893E249-A899-433B-9790-33DACB2408F1@electricdruid.net">At

      the time that this was a tough problem, people were trying to

      solve "the pitchshifting problem" using entirely analogue means.

      The problem didn't really get solved</blockquote>

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