SAA7310 I2s problems

[buzzforb]

3-4 inches

[marce]

Ouch...
Have a look at this, it shows how the signal and its return path are closely related. For digital signals this close coupling between signal and return is critical, for clock signals it very very critical. Puting clock signals down wires is not good practice (and probably induces more jitter than an on board clock, but thats another story).
http://www.x2y.com/filters/TechDay09...%20_JohnWu.pdf

I would try doing it with either coax for each signal, with its own return (approx 50ohm impedence) or twisted pair for each signal, so that each signal has its own return path closely coupled to the signal.

[buzzforb]

Thanks Marce for the info.