On 23/08/2019 18:31, A. Dumas wrote:
> The Natural Philosopher  wrote:
>> On 23/08/2019 13:24, A. Dumas wrote:
>>> Mostly proprietary SoC, Broadcom ARM version with their VideoCore GPU. I
>>> have no idea what's in there, but the Pi doesn't have hardware PWM or
>>> analogue gpio pins.
>>
>> So its a 1 bit per channel software DAC
>
> Yes. That's why I said "audio DAC chip" in an effort to be more precise.
> Obviously there is always Digital to Analog Conversion but in the context
> of computer audio output circuitry, how I think most people understand it,
> the Pi does not have "a DAC".

I am a software and a hardware engineer and I don't care whether its
done in hardware of software, its a DAC,

You don’t need 'a chip' to do a DAC. I was setting up resistor  based
DACS before you were born, probably :-)

>
> Anyway, with that new driver the output seems to be entirely acceptable.
>
As I said, the issue is timing jitter mainly

And one man's 'acceptable' is another persons 'distortion'



--
“when things get difficult you just have to lie”

― Jean Claud Jüncker

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