https://embeddedcentric.com/adc-dac-and-digital-audio-processing/ LAB 8 ***Helpful Note: The tutorial doesn't specify this, but you will need minicom open when running the program. Also if a warning appears after you have created the HDL wrapper you should be okay to continue anyway. Summary: In this lab, we use the ADAU1761 audio codec chip (coder-decoder) mounted on the Zed board, to output different pitches using the switches. Inside the codec are two ADCs, Right Channel and Left Channel, that we used to sample audio. The NCO generates samples of the sine waves at the designated frequencies and these samples are superpositioned and sent to the DACs through the I2S bus, so that they can be played on the speaker. ADAU1761 is and audio codec chip located on the Zedboard used for audio processing. Used for acoustic purposes (playing, recording, processing). The sample frequency is generated by the PLL logic which is driven by a master clock supplied by an external s...
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