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World 7 · From samples to a spectrum · 8 min · PRO

Two frequencies, identical samples

PRO · Sound & Music Lab

World 7: From samples to a spectrum is part of PRO

The first world of Sound & Music Lab is free. PRO opens the other 52 lessons in 6 worlds — simulations, quizzes and all.

  • Take a signal apart and rebuild it
  • Remove a high tone in frequency space
  • Same magnitude, different shape
PRO includes
  • All 26 labs — every world, every lesson
  • Practice exams and certificates

$8.33/mo, billed yearly ($99.99) · or $39.99 monthly

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← Same magnitude, different shape

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