Hi ladies
For those interested (ignore if you don’t care 
) : those of you following Jussi’s posts over the past decade about one of the key benefits of DSD256 (or higher) to analogue conversion, is about no images PLUS pushing this DSD noise hump further out and importantly how this DSD noise hump is not correlated to the input signal.
Well with a cheap Cosmos ADC running at PCM705kHz measurement, you can see this in real time for yourself.
This is Cyan2 USB input.
I’m not going to show videos of these sweeps. But here you have 3 snapshots of a linear sweep - one sweep at 0dBFS, one sweep at -12dBFS and one at -21 dBFS.
So you have PCM44.1kHz input signals at 3 quite different levels and when HQPlayer outputs DSD256, you can see the DSD noise hump stays at the same level - and it is low enough in level and far from audio band.
I also show jitter with PCM44.1kHz and PCM48kHz for those worried about jitter with Cyan2’s cheaper and inferior clocks. With USB input, there is basically no jitter to worry about.
PCM44.1k J-test:
PCM48kHz J-test
