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In Reply to: RE: Yep, We suprised them with new software posted by ahendler on August 19, 2014 at 16:17:36
HowdyAfter the pressure of getting the boards done, listening for days on end and then getting manufacturing going, I could sit back and listen and think. The results or that went into the new FPGA code.
There were independent bugs in the control processor that were found by early reviewers, they were usability problems not sound quality issues.
The release included the sound quality improvements in the FPGA and the bug fixes in the control processor.
-Ted
Edits: 08/19/14Follow Ups:
.. the noise shaping is different between the channels?
TiA
13DoW
HowdyAt first I thought it was a noise shaping anomaly, but I use the same FPGA code for both channels.
An earlier test board layout also showed a noise floor difference between channels, in that case the difference was that the reference voltage for the audio regulators was routed within a inch or so of the microprocessor.
With the DS the difference apparently is the asymmetry of the inputs on the digital board. The USB receiver hardware is nearer to the channel with the noise floor that rises sooner.
-Ted
Edits: 08/20/14
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