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SimonPac replied to the thread Watts Up...?.What is supposedly wrong with pcm DACs per se? And what exactly do people mean by pcm dac? Pcm encoding adapted for a truncated word... -
SimonPac replied to the thread Watts Up...?.A mic outputs microvolts to millivolts; an ADC usually needs a volt or two to give optimum signal to noise ratio and to minimise...
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SimonPac replied to the thread Watts Up...?.There seem to me a few adc dac scenarios would be potentially capable of good results. I'm assuming the convertor core is good for...
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SimonPac replied to the thread Watts Up...?.I think Rob is saying the time inter sample errors introduced by non-sinc interpolation reconstruction are complex and significant...
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SimonPac replied to the thread Watts Up...?.Maybe so. But you'd be optimising what was possible, not creating the impossible. With digital you can do much more in terms of filters...
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SimonPac replied to the thread Watts Up...?....and finally, for completeness (for the moment.....)..... A pure linear analogue time-continuous sinc brickwall phase linear filter...
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SimonPac replied to the thread Watts Up...?.A further point is that if you fed the analogue music signal into an ideal brickwall filter, analogue or digital, you'd get time domain...
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SimonPac replied to the thread Watts Up...?.Sorry to cause offence. You can't simplify beyond a certain point and still accurately convey the essentials here. If everything in...
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SimonPac replied to the thread Watts Up...?.No. Correct sound to hard-bandlimited input signal means both correct FIR choice, which includes extended pre-ringing, and rigorous...
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SimonPac replied to the thread Watts Up...?.Yes, normally there are no time isolated single sample wide impulses in music. And pre-ring should never manifest as such as an added...
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SimonPac replied to the thread Watts Up...?.I misused the term 'causal' I think, in referring to the published impulse response. Any FIR is causal in absolute real time of course...
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SimonPac replied to the thread Watts Up...?.Thanks Rob I guess I forgot the necessarily fairly severe FIR windowing, with the slow decay of coefficients on a sinc function. I...
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SimonPac replied to the thread Watts Up...?.Thanks all. I was a bit lazy and didn't realise Rob had gone into such depth here. I have started reading the first link which is very...
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SimonPac replied to the thread Watts Up...?.Questions re Rob Watts approach: 1) Does Bob seek to implement a pure brickwall FIR sinc function or something else? Why? 2) Is the...
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SimonPac replied to the thread Watts Up...?.Not seeing the questions I wanted to ask answered, either in the first posts or in a recent interview.
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