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Sound Hound

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  1. hi folks, I'm putting together an 8 channel system with DDX amps for experimenting with ambisonics and multiway active setups. since my background is computers and I've only recently forayed into audio, I'm a bit mystified by jitter and precision clocking. I get that galvanic isolation and a separate, clean power source are important to the audio bits beyond the computer. but I don't understand why the USB connection between such needs to have more than a reliable/accurate transfer of data. does the jitter transmit stray signals into the latter stages? if not, then the only place high precision clocks are warranted is in driving the DAC or DDX stage. surely any USB implementation is sufficient with the data adequately buffered. reclockers?! iPurifiers?! pah - audio voodoo! I'm cynical but ready to be enlightened! thanks....
  2. hello folks,I've just joined as I'm having another mid-life crisis and this time its SQ rather than motorbikes!I'm waiting for delivery of RPi's and a RaspyPlay DAC but my first misstep in this field has been to install a good quality head unit in the back of my van - the DEH-80PRS. It's great - it has a builtin-in DSP and AutoEq/TA/Crossover. But ....I really want to use it as an amp and use the Volumio app to pump music through it.unfortunately the only input to the HU is dual RCA's. Fine for the amp part but I really want to retain the goodness of the DSP. I imagine that the analogue input precludes that. So my thought is to get at the innards - I don't need the CD drive and my understanding is that a drive will be connected into a system via S/PDIF which sounds good to my naive intellect, because I'd like to hi-jack that input and pipe in a digital signal.Can anyone familiar with S/PDIF, clocks and digital communication suggest any pitfalls that may lie in wait?
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