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[Manfred]

I tried two different ways to play DSD 256 (4x) tracks (HP is Audeze LCD-2):

1.) Use DSD bitstream in DoP format in MC and let the ADI-2 DAC do the DSD to PCM conversion to pcm 768
2.) Use my i-7 and let MC do the DSD to PCM conversion to pcm 768

The 1.) option seems to have less noise than option 2.)

Why?

Real time conversion of DSD 256 to pcm through option 2.) uses around 32% CPU utilization.
Is the # of threads used by MC limited to 4 for the conversion process?



 

[dtc]

If you think the CPU utilization may be causing some sort of noise problem, you could convert a DSD track  to a PCM  file and play the PCM file.

By converting to 768 Khz, you are doing an non-integer PCM conversion. You might want to try 705 KHz instead and see if that makes a difference.  It should use less CPU.  And make sure you are using the SoX resampler.

[Manfred]

Thanks for your response dtc, but MC makes no problems - I only wanted to know how much threads MC uses for the conversion and if its limited to 4?

The other point was that the ADI-2 seems   to make more noise using DSD in DoP format compared to if MC does the DSD conversion to pcm. But I had to adjust manually the volume - and I am not perfect in this.

I had a typo in my entry It is 705 kHz. Thank you for the hint.