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  1. I have a Allo USBridge Sig which I have been using as an NAA with RopieeeXL but I was interested in trying the straight NAA image. Since the USBridge sig uses a Raspberry Pi Compute Module 3 should this Pi3 image naa-4112-raspberrypi3.7z work? I tried using it but the USBridge does not boot and stays on the rainbow screen.
  2. Just wanted to say thank you to David from @Focus Fidelityfor how quickly he has made it now possible to export Mono filters for use with HQPlayer. I've only had a brief chance to listen to the filters in use, but I'm very pleased with the results.
  3. Hi Miska, Focus Fidelity does do phase corrections. So referrring back to my previous question is it at all possible to carry out measurements with REW via HQPlayer and the NAA and keep the signal path the same as during music playback.
  4. Thanks @Miska. One other question, I am using an NAA but could not work out how to include it while taking the measurments with REW so ended up plugging my DAC into the control PC. Does this change in signal path make much difference to the measurements and if so is there a way to route REW test signals through HQPlayer in order to keep the NAA in the signal path?
  5. @mitchco thanks for that I will give it a go. @Focus FidelityDavid thanks for offering to add the mono feature, I'm sure there are quite a few HQPlayer users who will benefit from it.
  6. I've recently started looking into convolution and generating filters using Focus Fidelity. This is probably a stupid question but I just wanted to check, does HQPlayer do the convolution before upsampling and therefore do I match the sample rate of the filter to the source material or HQPlayers upsampled output?
  7. Hi Mitch, great article. I bought a license. I'm intending to use the filters with HQPlayer which requires seperate filters for the left and right channels. I can't for the life of me work out how to export the filters for the seperate channels. Any help would be much appreciated.
  8. It would be far better if Audio_Allo posted replies in the threads rather than sending PMs so others can learn how to resolve these problems.

  9. Thanks for the replies. The Clear Data suggestion seems to have resolved the problem.
  10. For quite a while I have been using a SOtM SMS-200 as an NAA with Roon and HQPlayer into an Audiolab MDAC+ and have been able to upsample PCM to DSD 128 or directly output DSD 64, 128 and 256 files using DirectSDM. I have recently updated the SMS-200 firmware and am now using V0.456. I'm not sure what has changed but I notice everything is being output as PCM. Even DSD files are being converted to PCM when Direct SDM is selected in HQPlayer which should just pass the DSD files straight through unaffected. I am also unable to select the SDM output from the drop menu in the main GUI
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