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USB to I2S 384Khz - DSD Converter

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#273
albertob said:
No drivers are needed for mac 10.6, ok
but for my macmini version 10.5.7 Do I have to install drivers? Where to get?

For now I have no option to install version 10.6 on my intel mac mini.
Click to expand...

As you will NEED minimum 10.6.4 you simply do as follows:

1. Reduce the size of your current OSX partition with 10 - 20GB.
2. Create a new partition in the free space.
3. Install 10.6 or 10.6.2 and upgrade to 10.6.8
4. You can then select witch of the two OSX versions you will boot.

I am running 10.5.8, 10.6.8 and the latest "10.8 Beast" due to I have applications that requires 10.5.8 - I use 10.6.8 for Music and the latest 10.8 for other issues 🙂
 
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#274
I have installed 10.5.8.
So, this card does not work with Mac versions below 10.6?. I thought I could work installing default drivers that are included in macosx 10.6. It is tedious to have multiple operating systems to use depending on the program.
 
#275
albertob said:
I have installed 10.5.8.
So, this card does not work with Mac versions below 10.6?. I thought I could work installing default drivers that are included in macosx 10.6. It is tedious to have multiple operating systems to use depending on the program.
Click to expand...

I know...

I have at least 14 different operating systems / versions in use, but I run them on multiple physical systems (and some virtualized) and control and use them all from my MacBook with different tools (some of the systems are even 3000 kilometer away), and I have also access to all systems from my iPad.
 
#277
Hey ...

Anyone considered making a discrete direct DSD/analog converter from the output signal of the USB to I2S card (if possible)?

@RayCtech: I just noticed in your "footnote" that you have a discrete DAC which sounds very interesting. Does it also playback PureDSD? And is there a description of it here on Diyaudio or elsewhere?

Greetings,

Jesper
 
#278
gentlevoice said:
Hey ...

Anyone considered making a discrete direct DSD/analog converter from the output signal of the USB to I2S card (if possible)?

@RayCtech: I just noticed in your "footnote" that you have a discrete DAC which sounds very interesting. Does it also playback PureDSD? And is there a description of it here on Diyaudio or elsewhere?

Greetings,

Jesper
Click to expand...

DSD up to and including DSD256, but it is a bit more sophisticated than the direct DSD/analog converter type you mention.

There is no descriptions or postings anywhere, but I am working on web site that will be uploaded in a week or two...

Here are a "cut and paste" from the description of the DSD enhanced technology section.

The DAC256 converts standard DSD64 / DSD128 and DSD256 formats first from a 1 bit data stream to 32 1 bit data streams to fully utilized the 128 bit state machine to increase the accuracy and lower the noise spectrum by running the 32 parallel data paths in parallel.
Then the 32 1 bit data streams is converted to 8 bit code before the DAC 128 bit state machine outputs the data.

The DSD64 and DSD128 formats are also oversampled to DSD256 speed (11.2896 MHz / 12.288 MHz) before convertion to 8bit code and output by the proprietary 256 bit state machine.
This conversion alone moves the noise floor 8 times up in frequency for DSD256, 16 times up for DSD128, and 32 times up for DSD64 - the full data resolution of the proprietary 128 bit state machine is not utilized as native DSD runs in bit perfect DSD compatibility mode.

The use of 32 parallel data paths and all output hardware segments of the DAC256 state machine lowers the noise spectrum to level that are closer to the PCM performance than would have been expected from DSD.

The enhancements incorporated for DSD64, DSD128 and DSD256 like oversampling and conversion from 1 bit to 8 bit code and the use of the full 32 bit parallel data paths will give a performance level so high that support for DSD512, DSD1024 and DSD2048 will not be implemented- at least not in the near future.
Click to expand...
 
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#280
gentlevoice said:
Anyone considered making a discrete direct DSD/analog converter from the output signal of the USB to I2S card (if possible)?
Click to expand...

A Japanese user made a very simple
discrete direct DSD/analog converter (in Japanese) with using one chip device.
d18253f1.jpg
 
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