Lots of weekend news from skrasoft, developer of the 2a03 synth project. He writes
As has been well-documented all across the Internet, the NES 2A03 is not a sound chip. Though it contains all the Nintendo sound hardware, it is very much a processor that needs properly-formatted program data to run.
more “Sound Chip” Progress.
There are also posts about crude triangle volume control with audio, and another audio test. Project is looking good!