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In Reply to: Re: Benchmark announces USB DAC posted by audioengr on February 15, 2007 at 19:35:56:
I guess they are saying that a 3rd party driver is not needed. I can see that for Vista, but not for WinXP and Win2000. Yes, these drivers work with my DAC as well, but they don't sound good, so what's the point in mentioning them?
Follow Ups:
The main culprits for bad computer audio playback are:Software mismanagement:
- Poorly designed software volume control
- Truncating to 16-bit
- Sample-rate converting
- Other DSPHardware mismanagement:
- DAC, etc unable to handle high jitter levels common with computer outputsAn ideal computer-audio playback path will get the digital information to the DAC without corrupting it whatsoever, just as we expect from any high quality transport.
The USB audio solution developed for the DAC1 USB is tested and proven to be bit-transparent. This means, if the media player (iTunes, etc) is set up properly, every digital bit that was originally present in the audio file will be perfectly transmitted to the DAC1 USB. This was tested using "Bittest", a bit-tranparency test from Audio Precision.
Further, due to the UltraLock clocking mechanism, the DAC1's immunity to Jitter make it the perfect counterpart to computer-based digital audio playback.
In fact, when playing a 96/24 test tone from the computer's USB port, the performance from the DAC1 USB is just as good as from a high quality transport.
Hope this helps!!
Elias Gwinn
Engineer
Benchmark Media System, Inc
http://www.BenchmarkMedia.com
.
I do not have Vista yet, so no.
The generic usbaudio driver in Vista has been substantially rewritten (to fit within the UAA and WAS frameworks).I wasn't sure in your post whether your remarks were directed at the XP driver or the Vista driver (the Benchmark DAC press releases states that it will run at 96k on the vista driver).
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