Notes on audio (if there's time)
{"Image DocumentName": "Notes on audio (if there\u2019s time)", "Image ImageDescription": "NES: four channel synthesizer. Two pulse waves (square/rectangle) Variable duty cycle (12.5%, 25%, 50%, 75%) Variable volume (16 levels) Melody and harmony. One triangle wave. No variables. Triangle is implementing by stepping along the sixteen volume levels. Bass. One noise channel. Uses a LFSR to produce pseudo-random cycles of pulse waves. Drums and percussion. Also PCM but I chose to ignore that.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}