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Asus Xonar Essence STX ASIO settings?

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jesseinsf:
Matt you are correct but the Asus ASIO Control Panel is not a part of MC, so Asus ASIO Control Panel settings does affect the output bitdepth of MC. I tested it myself. You access the Asus ASIO Control Panel through the notification area of the Windows Taskbar. When testing this you have to put your mouse over the NEW DSP quick view near the top left of MC. And again as Matt just said, the Bitdepth settings within MC don't have any effect on the audio path/signal, only the Asus ASIO Control Panel settings have an effect in MC.

jesseinsf:
I'm still wondering if someone has an explanation to my original post? As you can see the picture in my previous post states that MC is outputting at 32 bit where as my Xonar Essence STX card only states that it only supports up to 24 bit? What is happening? Is the ASIO driver taking the 32 bit file that is receives from MC and "down-converting it to the supported Bitrate which is 24 bit? Or does the card actually support 32 bit audio in ASIO mode? I would ask Asus myself but I don't have the Serial number that they need to answer my question. I am using the latest Asus Driver for my card that come from the Asus website. All bitrates work and playback in MC when I change them in the Asus ASIO Control Panel.

Remember I can change the Asus ASIO control panel to 16 bit and MC will output at 16 bit. I can give a screen shot if anyone needs it.... Thanks

Audioseduction:
Post this question at Computer Audiophile site: http://www.computeraudiophile.com/. Lots of experiance people there.

jesseinsf:
Here is the answer. Yes set it to 32 bit.

Computer Audiophile forums said:

Xonar cards use the oxygen PCI(-e) controller which supports only 16bit and 32bit samples over DMA - see the corresponding line in the linux driver source code git.alsa-project.org Git - alsa-kmirror.git/blob - pci/oxygen/oxygen_pcm.c

 The DAC connected to oxygen via I2S supports 24 bits exactly - oxygen adds zeros/pads zeros to the samples read via DMA before sending to the DAC via I2S (or switches the DAC to 16bit I2S, I have not studied the source code in detail). All these operations are bitperfect with zero effect on the sound.

http://www.computeraudiophile.com/f11-software/asus-asio-control-panel-10027/

This might also be why WASAPI default Bitdepth settings  which is "Automatic" outputs at 32 bit.

Jackkan:
You can hear differences in timing going from 32 to 16 for CD and 32 to 24 for studio masters with the Asus ASIO driver. I have the latency set at 50ms and buffering the same. OH it does bypass JRiver's 32 bit preference accordingly when viewed in Audio path.

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