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Not really. A CD sector is 2,352 bytes. For data CDs, this is split in 12 bytes sync, 4 bytes sector id, 2,048 bytes real data, 4 bytes error detection, 8 bytes zero and 276 bytes of error correcting code. For audio CDs, all the 2,352 bytes are used for real (audio) data with no ECC. If there are errors there's no level 3 ECC to help correct them.Nap.
OK. Some posters seem to feel that a high quality power supply on a squeezebox can improve the resulting sound quality of the digital output when fed to an outboard DAC.I have been thinking about conducting a blind test to determine if this is the case. (I would imagine that it could have a postive impact on the analog outputs and we can test that too.)Here is a possible setup for the test:Frank's AVA Vision DAC has a pair of coax digital inputs and you can switch between them. If we set up two identical SB units, one with the supplied power supply and one with an "improved" power supply (or even a battery power supply), we can sync the SB's and run each to a separate input on the Vision DAC.Someone who would not be involved in the listening test could flip a coin to determine which of the SB's would be connected to which input. Then a cloth of some sort could be placed over the wiring so no one would be able to see which SB was connected to which input. That way, no one participating in the listening test would know which was which.Switching back and forth between the inputs while listening to various musical selections would allow listeners to judge whether they were able to hear any difference between the two and which, if either, was superior.Does this sound like a reasonable approach? If so, what upgraded power supply should be used to maximize any potential difference?We could do a similar test with the analog outputs by simply running the SB outputs to two inputs on the preamp.- Jim
Nuance- I personally would never cry fowl...its all for fun and better sound is always fun!! Its all Good!!! Jim- Where is the proposed test site?? Ed L.
..... but it would be as easy as taking one SB and just have someone unplug one supply and plug in the other supply without the subject knowing, same SB used for both PS just manually switch plugs.
While amps, speakers wires, etc, could also be tested at the same session, it would be more difficult as the tests would not be totally blind and there would be time delays between each component being tested.
Dennis just needs to make a reverse magic comparo box (A/B remote switch where the input is two pairs of speaker cables, and the output is just one pair)
And what speaker wire would the output wire be? Steve
The stock switcher is always an and always is polluting the AC line whenever it is plugged in. It also transmits a fair amount of RFI. The only fair way to judge the difference is to unplug the stock switcher from the wall.
The stock switcher is always an [on] and always is polluting the AC line whenever it is plugged in. It also transmits a fair amount of RFI. The only fair way to judge the difference is to unplug the stock switcher from the wall.
