Comments on: USB soundcard to digital storage oscilloscope https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/ All about electronics and circuit design Fri, 10 Apr 2026 21:14:09 +0000 hourly 1 http://wordpress.org/?v=3.9.14 By: Tomi Engdahl https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1832122 Fri, 12 Jul 2024 06:57:14 +0000 http://www.epanorama.net/blog/?p=8487#comment-1832122 https://hackaday.io/project/192598-flea-scope-usb-o-scope-18-18-msps-webusb

]]> By: Tomi Engdahl7 https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1821167 Mon, 22 Jan 2024 16:59:28 +0000 http://www.epanorama.net/blog/?p=8487#comment-1821167 ET601 Five-channels USB-oscilloscope tested
We have never tested a device where the discrepancy between specifications and actual performance is so great. The ET601 is completely unusable as an oscilloscope, but perhaps applications can be found in the field of teaching.
Read this article
https://chinese-electronics-products-tested.blogspot.com/p/et601-five-channels-usb-oscilloscope.html

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1816225 Mon, 23 Oct 2023 10:41:57 +0000 http://www.epanorama.net/blog/?p=8487#comment-1816225 #413 Your PC Soundcard is an Oscilloscope, a Signal Generator, and a Spectrum Analyzer (Arta, REW)
https://www.youtube.com/watch?v=dX0QkL8xMmE

Oscilloscopes and signal generators are handy tools in our labs. Unfortunately, they are not cheap. What if you had such devices already and did not know?
All newer PCs have loudspeakers and a microphone. So they can create sound as well as record it. And usually in decent quality. Like oscilloscopes and signal generators! We only need a connection and software to create the desired waveforms and visualize the measured voltages. Fortunately, such software is available. And the best: We can use it free of charge!

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1814280 Tue, 26 Sep 2023 09:22:40 +0000 http://www.epanorama.net/blog/?p=8487#comment-1814280 Flea-Scope™ USB O-scope (18 Msps, $13 BoM, WebUSB)

Flea-Scope™ is a very low-cost and easy-to-use 18 Msps USB oscilloscope and mixed-signal logic analyzer.

https://hackaday.io/project/192598-flea-scope-usb-o-scope-18-msps-13-bom-webusb

Flea-Scope™ is a very low-cost ($13 BoM in quantity) and easy-to-use 18 million sample-per-second (Msps) USB oscilloscope and mixed-signal logic analyzer with a built-in waveform generator, and so much more, based on the PIC32MK MCU! Flea-Scope can be controlled by any Chromium-based web browser that supports WebUSB API or Web Serial API running on a computer, tablet, or phone (!!!), with no need for further software install – just plug it in and open a web-page and you are up and running!

The Flea-Scope User’s Guide (including some “how it works” internals) is here: https://rtestardi.github.io/usbte/flea-scope.pdf

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1803614 Mon, 22 May 2023 00:08:38 +0000 http://www.epanorama.net/blog/?p=8487#comment-1803614 The frequency range depends on the sound card, but 20-20000Hz should be possible with all modern cards. The low frequency end is limited by the AC coupling of the line-in signal. Be aware, that most microphone inputs are only mono.

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1803613 Mon, 22 May 2023 00:08:11 +0000 http://www.epanorama.net/blog/?p=8487#comment-1803613 Web Browser Oscilloscope – Trigger Level Settings #22
https://github.com/ozel/DIY_particle_detector/discussions/22

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1803612 Mon, 22 May 2023 00:07:43 +0000 http://www.epanorama.net/blog/?p=8487#comment-1803612 Webbrowser based oscilloscopes are very handy software Oscilloscopes, because they do not require to install software on the computer. They are also known to run on smartphones and tablets, which makes them quite universal.

What follows is a list of webbased oscilloscopes known to be available.
Simple Demos

https://webaudiodemos.appspot.com/AudioRecorder/index.html
https://academo.org/demos/vectorscope/ (no data aquisition, only output)
https://academo.org/demos/virtual-oscilloscope/ (most sophisticated oscilloscope)
they use this work: https://www.researchgate.net/publication/316744813_Free_oscilloscope_web_app_using_a_computer_mic_built-in_sound_library_or_your_own_files

You can use https://anabrid.dev/webosci/ from any recent web browser.

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1803611 Mon, 22 May 2023 00:07:04 +0000 http://www.epanorama.net/blog/?p=8487#comment-1803611 Web Oscilloscope
https://anabrid.dev/webosci/

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1803610 Mon, 22 May 2023 00:05:52 +0000 http://www.epanorama.net/blog/?p=8487#comment-1803610 Schematic Overview
Next

https://makezine.com/projects/sound-card-oscilloscope/

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2012/05/08/usb-soundcard-to-digital-storage-oscilloscope/comment-page-2/#comment-1803609 Mon, 22 May 2023 00:05:18 +0000 http://www.epanorama.net/blog/?p=8487#comment-1803609 Virtual Oscilloscope
https://academo.org/demos/virtual-oscilloscope/

This online virtual oscilloscope allows you to visualise live sound input and get to grips with how to adjust the display. If you find this useful, our online spectrum analyser may also be of interest to you.

https://academo.org/demos/spectrum-analyzer/

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