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USB Sound Card : 8 Steps - Instructables
Building a custom USB audio mixer
USB Sound Card : 8 Steps - Instructables
Soundcard Oscilloscope And Signal Generator - The EECS Blog
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Make a Sound Card with PCM2704
Adapting a USB sound card to work with a studio condenser mic
Make a Sound Card with PCM2704
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A Simplified USB Sound FOB Modification
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USB Sound Card PCM2706 Kit (Analog Out, I2C, SP/DIF)_DAC/USB DAC_Analog Metric - DIY Audio Kit Developer
Make a simple USB soundcard with the PCM2704 - YouTube
