Sound Card EEG (ScEEG) Technology (hotamateurprograms.com) | HN Screenshots

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Screenshot of hotamateurprograms.com: Sound Card EEG (ScEEG) Technology

First screen, captured 3 years ago.

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Screenshot of benwang.dev: Phased Array Microphone (2023)

Phased Array Microphone (2023)(benwang.dev)

560 points by bglazer 1 year ago | 179 comments

Blog post describing a 192-channel open-source phased array microphone with FPGA data acquisition and GPU beamforming and visualization.

phased-array microphone-array fpga beamforming

Screenshot of tomverbeure.github.io: A Tektronix TDS 684B Oscilloscope Uses CCD Analog Memory

A Tektronix TDS 684B Oscilloscope Uses CCD Analog Memory (tomverbeure.github.io)

96 points by zdw 1 year ago | 59 comments

Screenshot of sethares.engr.wisc.edu: Tuning Timbre Spectrum Scale

Tuning Timbre Spectrum Scale (sethares.engr.wisc.edu)

28 points by Tomte 1 year ago | 2 comments

Screenshot of pieeg.com: New revolutionary device – 24 EEG channels with Raspberry Pi

New revolutionary device – 24 EEG channels with Raspberry Pi (pieeg.com)

7 points by Christiangmer 1 year ago | 1 comments

Screenshot of en.wikipedia.org: QSL Card

QSL Card (en.wikipedia.org)

94 points by 1970-01-01 3 years ago | 42 comments

Screenshot of alexandrefrancois.org: Show HN: Resonate – real-time high temporal resolution spectral analysis

Show HN: Resonate – real-time high temporal resolution spectral analysis (alexandrefrancois.org)

59 points by arjf 1 year ago | 19 comments