Rocky Mountain Audiofest 2009 Computer Audio Seminar

I think it would be good to have a formal time(s) to get together and say hi. Lots to talk about and learn. This will be my 4th or 5th RMAF.<br />

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Always have a great time.

Gang,<br />

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My in box is full of stuff about the show and especially DSD. I did come up with a specification for DSD over USB and we are working with a number of companies on how to implement this. It does seem very doable and we will pursue this. We have also open the door to several application layer software companies who think it would be a very easy thing to add.<br />

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It would be real nice if we could pull this off as Sony really left an entire market place with tools they cannot use an a library of DSD material.<br />

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As Charlie Hansen pointed out on SAT in our talk @ RMAF. Sony and Philips shared $1B a year for the CD RedBook rights. When that went away they came up with SACD but it really failed at the retail level as people would buy single layer disks that would not work with their standard CD players.<br />

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Thanks<br />

Gordon

Last week from Wavelength it was 24/192 over USB. Now DSD over USB. Will it be compatible with the DSD formats, say from Korg, 1-bit/2.8224 MHz and 1-bit/5.6448 MHz? Please tell me how much and how long do I have to wait.

Is it possible to do DXD over usb?

Gang,<br />

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We have hammered out some of the details on the DSD specification. Basically we will insert a new Sampling Frequency at 117.6K @ 24. When the computer enables this frequency by the application we will know that it is DSD data coming down. Convert the PCM DAC chip to DSD and then adjust the hardware to work as DSD in straight 2 channel x 1 bit at 2.8224 sampling rate. We have not talked about double speed.<br />

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As far as DXD is concerned, there has not been much interest there as of yet. Especially with the upcoming 32 bit architectures they should have looked at that more than increasing the sampling rate. Increasing the bit depth really has a lot more promise.<br />

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Thanks<br />

Gordon

Love the sound of my Korg MR-1000

Very cool, do you use your Korg for a DAC during playback on your system?<br />

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BTW, very cool article on 16 bit, 24 bit, and 1 bit files, on this page called future proof recording explained:<br />

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http://www.korg.com/product.aspx?pd=289<br />

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According to them, DAC chips use 1 bit systems internally and output multibit audio.

I have a Korg MR 2000S that I bought recently from Sweetwater to digitize my LPs. I am also using it to digitize my SACDs and DVD-As, since I have a few DVD-A tracks that could not be ripped using DVDAExplorer. I have been digitizing these to the higher quality 1-bit 5.6448 MHz format based on the feedback from others who said the digitized SACDs are indistinguishable from the originals. For the DSD formats you definitely use the Korg as a DAC but since the MR 2000S has digital inputs and outputs for the lower resolution PCM formats, I assume you can use it as a DAC too. I haven’t tried using the Korg for anything but DSD, but I have used their Audiogate software to convert the DSD files to 24 bit/176.4 kHz WAV files for playback with my other DACs and music servers.<br />

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I have not had the Korg long enough to post any reviews but I am impressed with what I have heard so far and it’s just as easy to digitize my LPs as it was years ago when I used to record LPs to tape. I suggest someone like Bruce at Puget Sound Studios could provide a more qualitative opinion of the Korg MR 2000S. Anyway that’s why I expressed interest below in the news from Wavelength Audio that some of their future DACs may support single and double speed DSD.<br />

I found this thread entertaining, as Roy was never supposed to be on that panel. He told me himself he didn't know why he was included there.<br />

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Did he end up on the panel?? I missed that one - was out at Beatport getting some music in Denver.

FYI, you can view this discussion online using the following link:<br />

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http://audiofest.net/2010/video_player.php?video_id=13&Sid=eb12057ab59afb11e4d498be9104a1e8