Recent content by pLudio

  1. P

    Topping D90 Balanced USB DAC Review

    That looks like an excellent filter, better than the corresponding AKM Sharp Roll-off. It will work fine. Perhaps it's better to upsample to 192 kHz to avoid the Super Slow aka NOS filter, I don't know.
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    Topping D90 Balanced USB DAC Review

    I don't know about ESS. Both AKM and ESS can also use external filters.
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    Topping D90 Balanced USB DAC Review

    Input sample rates of 352.8 kHz and higher always use the Super Slow Roll-Off filter (called NOS by RME) on those AKM DAC chips.
  4. P

    The sound quality of DSD?

    gain [-e|-B|-b|-r] [-n] [-l|-h] [gain-dB] The -n option normalises the audio to 0dB FSD; it is often used in conjunction with a negative gain-dB to the effect that the audio is normalised to a given level below 0dB. For example, sox infile outfile gain -n normalises to 0dB...
  5. P

    DAC straight to amp

    Their pre-amp's "Maximum Input and Output Voltage, 20 Vrms (+28 dBu)" in combination with Low Gain set on the AHB2?
  6. P

    DIY Purifi Amp builds

    https://atm-audio.com/input-buffer-for-hypex-and-purifi-audio-with-triode-korg-nutube/ :-)
  7. P

    Topping D90 Balanced USB DAC Review

    It doesn't answer your question but I've tried a Marantz CD6000 KI that had problems with Topping D30Pro (CS8416 receiver) but worked with D90 (AK4118 receiver).
  8. P

    Digital filter "game"

    The FLAC specification allows 20 bit files but it is unfortunately not yet implemented. We can limit the data to 20 bits anyway and save some space. sox -SV4 in.dsf --bits 24 -C 8 out.flac rate -uL 88.2k gain 6 dither -S -p 20 Saved me 35% on a file.
  9. P

    Digital filter "game"

    sox -SV4 in.dsf --bits 24 -C 8 out.flac rate -uL 88.2k gain 6 dither -S @mansr may have a better suggestion for the dither. -u is the secret ultra quality.
  10. P

    Audiopraise VanityPro Review (HDMI Audio Extractor)

    SACD DSD64 noise is a problem already at 20 kHz. With 24/176 you'll only pass more noise to your DAC than with 24/88.
  11. P

    Which Linux software.

    foobar2000 in Wine using https://github.com/sammoth/foo_out_pulse.
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    Audiopraise VanityPro Review (HDMI Audio Extractor)

    S/PDIF has enough bandwidth for SACD/DSD64 DoP but support in players for sending DoP is probably poor.
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    Audiopraise VanityPro Review (HDMI Audio Extractor)

    It can also encode the SACD DSD stream as DoP. https://audiopraise.com/projects/internal/vanitypro/features/
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