If you are using a laptop try streaming to the squeezebox on battery power. Also Apple lossless files sound very good and less prone to dropouts in my wireless network.
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"Jitter" as a concept does not apply to digital bitstream read from a hard disk file. It was something that applied to Audio CDs but once you rip the file to a wav or FLAC it's "frozen in time." Every time you play it back in a pure digital passthrough mode from your computer, as it leaves the pc it is an exact duplication of the bitstream read from your CD at the time you read it. That's not to say that this has no jitter, it just has the exact jitter at the time of the rip, ever time. This is assuming you have a clean digital line to your outboard DAC / Pre-pro / Receiver / whatever. |
For those interested...here's a great discussion about jitter: http://www.digido.com/portal/pmodule_id=11/pmdmode=fullscreen/pageadder_page_id=28 |
Sonance...I posted your response in another forum and Tonycdk replied in the following manner; "Having a correct bit stream is not the problem . Almost all players derive the correct bit stream (except for read errors that may occur from really bad CDs). Accurate digital reproduction requires that the original sampling of the analog waveform from the microphone occurs at exactly equal time increments, and then is converted back from digital at exactly equal timing increments. If there is any slight variation in the timing, either in the recording process or the reproduction process (the two are independent of each other) the reproduced waveform will not be exactly the same as the original. It is basically more or less impossible to build hardware to provide absolutely perfect timing. The slight scatter in the actual length of the timing ( it is usually in the hundreds of pico second range) results in what we call "jitter" and a slightly imperfect waveform reproduction. In any digital recording there is absolutely nothing we can do about 'jitter' introduced by timing spread in the recording equipment. This effect is encoded on the recording and can not be removed. Fortunately most recording gear seems to be reasonably good these days - although that may not be the case for some early digital recordings. Mostly, what we hear as 'jitter' results from the accuracy of the timing in our gear. Having a perfect bit stream does not affect the timing. This is why we put so much emphasis on accurate clocking of the data stream - for example, why so many of us use the Big Ben for re-clocking. The short answer to your question is that having an accurate bit stream is good, but is unrelated to the jitter issue." This is why reclocking the signal pertains to the squeezebox even though the data stream originates from a hard drive!!! |
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