In Reply to: RE: I have to Agree With Fmak and Carcass posted by Tony Lauck on July 10, 2012 at 08:51:20:
First, the same bits have to be sent to the DAC.Second the DAC has to send timing information to the computer,
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My most recent experience.Gear:
Linux OS 32bit and 64bit Lubuntu
Wadia 121 Dac
Dynaudio SpeakersBoth Linux versions running on identical SSD's, with MPD configured exactly the same, ALSA out via USB, bitperfect 'hw' used not 'plughw'.
Music was fed to MPD:
Once with music stored on the SSD
Once with music fed via USB external HD
Once with music fed via Newtwork from another machine
All music was RBCD 16/44.1 flacAll electronics plugged into a Balanced power transformer and remained plugged in for the duration. Analog being fed to Dynaudio speakers from Wadia Dac via 6ft Balanced cable.
32bit sending bit-perfect data out via USB Asynch to the Wadia 121 Dac
64bit sending bit-perfect data out via USB Asynch to the Wadia 121 DacThe sound coming from the 64bit OS was noticeably dull when compared the the exact same tracks from the 32bit OS. So much so that it was not listenable. Highs did not extend, vocals were not as clear, bass did not have the same impact.
Edits: 07/10/12
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Follow Ups
- RE: I have to Agree With Fmak and Carcass - Dynobot 09:33:45 07/10/12 (10)
- RE: I have to Agree With Fmak and Carcass - Tony Lauck 11:04:15 07/10/12 (9)
- RE: I have to Agree With Fmak and Carcass - Dynobot 11:24:29 07/10/12 (8)
- RE: I have to Agree With Fmak and Carcass - Tony Lauck 12:19:43 07/10/12 (7)
- RE: I have to Agree With Fmak and Carcass - mschneider 10:40:24 07/11/12 (1)
- RE: I have to Agree With Fmak and Carcass - Tony Lauck 11:20:23 07/11/12 (0)
- RE: I have to Agree With Fmak and Carcass - Dynobot 13:33:49 07/10/12 (4)
- RE: I have to Agree With Fmak and Carcass - Tony Lauck 15:15:18 07/10/12 (3)
- Linux Not Bit-Perfect .....HUH??!??!?! - Dynobot 17:15:20 07/10/12 (2)
- please clarify how your tests prove bit perfect - bwb 17:57:33 07/10/12 (1)
- I hear Dynobot rapping....... - AbeCollins 19:17:48 07/10/12 (0)