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hpr3478 :: Audio Wiring Hack on a Classroom Podium

Listen in while I hack the wiring on our classroom podium for custom audio routing.

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Hosted by Jon Kulp on 2021-12-01 is flagged as Clean and is released under a CC-BY-SA license.
audio, wiring, higher education.
Listen in ogg, spx, or mp3 format. | Comments (1).

general.

In this episode I take you along for the ride as I hack the wiring in a classroom podium so that I can show musical scores on the Elmo document camera while playing audio through the podium's laptop VGA audio source. Without this hack, the students could either see the score, or they could hear the music, but not both. This simple hack installing two jumper wires allows them to see the score and hear the music at the same time, which is important in my classes. I could already do this by using a PDF music score on my laptop while playing the audio file, but this allows me to use a paper score and audio from my laptop at once. It essentially acts as an audio splitter, sending the audio signal to two channels at once.

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Comment #1 posted on 2021-12-01 03:27:16 by Trey

I am sure the Audio/Video department loves you

Thanks for sharing this great little hack. It may have a negative impact on the impedance matching for this audio input channel, but it shouldn't be overtly noticeable when listening. Thanks, again, for sharing.

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