_audio-signal-detection-for-automatic-input-switching.jpg "Audio Signal Detection for Automatic Input Switching from lm358 Video Screenshot Preview")
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⏲ Duration: 41 sec
✓ Published: 15-Jan-2012
✓ Published: 15-Jan-2012
Description:
Using a LM358 dual op-amp as a comparator and a Maxim MAX4616 4xSPST analog signal switch to automatically switch between two audio inputs in an amplifier.nnCredit goes to Rod Elliot for the signal detection circuit, although I've adapted it to run on a 5V supply.nnWhat you're hearing is iTunes playing a track throughout the video. I start playing a song on the iPad which switches the amplifier to that input. When I pause the iPad there is a delay before finally switching back to iTunes.
Using a LM358 dual op-amp as a comparator and a Maxim MAX4616 4xSPST analog signal switch to automatically switch between two audio inputs in an amplifier.nnCredit goes to Rod Elliot for the signal detection circuit, although I've adapted it to run on a 5V supply.nnWhat you're hearing is iTunes playing a track throughout the video. I start playing a song on the iPad which switches the amplifier to that input. When I pause the iPad there is a delay before finally switching back to iTunes.
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