Everybody building a SBC that wants sound output gets to the same wall: There are not sound generators, or programmable sound generators, or such kind of chips available like they were 30 years ago. Yes, you can get them a pulled ones, or old stock, or you can go the FPGA, PIC or Arduino route and get one of those sound cores that end being more powerful than the SBC itself, just to get SID or FM sound. There has been discussions about getting funcion generator chips, couple them to an external amplifier chip, and use them to generate waveforms based basic sounds. And I even read recently as having a 6502 CPU in a SBC just to generate sound. So... How difficult could be to get a 65xx CPU, have it generate a waveform with its ADSR settings, process it applying filters or whatever, and bitbanging it to a DAC, to generate sound? In another words: how feasible would be to implement a sort of SID (or whatever other generic PSG chip) engine in a 65xx chip, that could be used inside the same cpu, or act as an external sound chip for a main CPU? Do exist such a thing? -- Sent from: http://cbm-hackers.2304266.n4.nabble.com/Received on 2020-08-29 04:00:03
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