Originally Posted by Escape
Ok , I installed both Asio4all and ReClock. I have listened to several wav files and they sound the same to me. It could be that the sound from my PC is good. I have a very good sound card (Waveterminal 192X PCI) and always thought the sound was good but I always look to improve. I will listen some more to be sure. What I have learned is the asio4all works with my Steinberg Wavelab app. and the ReClock works with Windows Media Player. They each have their own tray icon that starts when you use WMP or Wavelab. The way that I found to test to see if it's bypassing the kmixer is that the volume control in WMP and the wave volume slider in sound properties will not work. Only the SPDIF slider will work. I noticed this for both Asio4all and ReClock. You can still hear other sounds from PC if you go to control panel and click on sounds tab and play them but the audio from WMP is going directly to the soundcard using ReClock and the same for Wavelab using Asio4all. Maybe the m2tech Hifac2 USB to SPDIF DAC with low jitter will improve sound when I get it on Saturday (shipping update)
I'm thinking of going with the SC-67 for that reason. I will know more on Saturday when I get the m2tech Hiface2 USB to SPDIF adapter and see if sound quality improves with that setup
Thanks for carrying out your experiment, working in parallel together like this has been invaluable, I really appreciate your help.
Your existing sound card must be very good, but as you say, the real interesting test will be to compare to the HiFace Two when it arrives.
As for my setup, tonight I had bit of a breakthrough
I realized while listening to the USB-DAC, playing lossless FLAC with Foobar, that the ASIO4ALL icon was BLUE. This should have rang alarm bells before, but for some reason I completely missed this crucial piece of evidence.
I went into the ASIO4ALL configuration in Foobar settings and carefully configured it again from scratch. This time when playing the track in Foobar, the ASIO4ALL icon turns GREEN, this means that the audio is indeed being routed using ASIO4ALL. And, the important thing is that the sound is significantly better!!
In fact, in the short time I had for testing tonight, I might even go so far as to say that it is better than my Mapleshade adapter.
It is hard to compare side-by-side as I have to change the SC-68 settings and also the ASIO4ALL settings in Foobar. This involves going through changing the ASIO4ALL settings and closing and starting up Foobar a few times. (ASIO4ALL can be very tricky to set up)
Anyway, I am convinced now that with the Pioneer drivers, at least in the case of an XP Pro machine, do NOT bypass kmixer. This is something which I believe Pioneer need to fix ASAP.
Owners of the SC-68 should not need to install WDM wrappers like ASIO4ALL. The process is not straightforward and in I have read that some people have never been able to get it to work with their particular sound card.
Going back to your point about Windows system sounds ..
I also tried the same experiment. Before running up Foobar, I went into control panel, system sounds and played the sound for 'asterisk'. This played out over my speakers.
Next, I ran up Foobar and played a track. The ASIO4ALL icon went GREEN, so I then played the 'asterisk' system sound, the result was a horrible noise for a second or so and my PC hung up
I had the SC-68 volume up quite high, so it hurt my ears, so I hope it has not damaged my speakers.
Clearly ASIO4ALL is not playing well with Windows, or at least not when it is configured to use the USB-DAC.
I am going to update Pioneer with my findings. I will push for them to fix the driver so ASIO4ALL does not have to be used.
I finally heard from Pioneer support today to say that my issues have now been sent to the quality team in Japan. Hopefully things will start happening now and they fix the driver issues in a reasonable timeframe.