technifyed

3 Engineering projects

Biomedical Engineering + Health Technology

Make a low-cost digital stethoscope

Fit a microphone to a stethoscope head, record heart sounds and analyse them on a computer.

Hardware ProjectBasic electronics

  • Advanced
  • 2–4 weeks
  • 1,000–2,500

Electronics and Communication + Data

Filter noise from an audio recording

Record speech with a hum, find the hum's frequency and remove it with a digital filter.

Software ProjectComputer only

  • Intermediate
  • 1–2 weeks
  • Free

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