Squeezebox Touch: jitter thru wi-fi?


I'm looking into a SB Touch to go with a non-dedicated PC, and to feed my preamp (so initially, I'll use the Touch's DAC).

Eventually I plan to buy an external DAC, and I'm interested in the asynch USB DACs, which are supposed to avoid jitter through that interface. There's a Touch tweak going around to turn the USB input into an output, so that would be a preferred way to connect to said DAC.

Now how about mistimmings in the data transfer (jitter) through my wi-fi from PC to Touch? Is that an issue?

Thanks!
lewinskih01
Al, I've never done the math or quantitatively measured bandwidths, but from what I have seen I suspect your real world estimates to be reasonable.

Wireless n probably also does not always perform to the max based on teh spec but I would expect perhaps still a significant improvement over g in practice.

I have a wireless n router but my server and players are all wireless G, so I have not really leveraged the current wirless n technology in practice to date.

Again, just to be clear for all, these are limitations that determine how fast digital data can move through the digital wireless "pipeline" as input to the Squeezebox. Jitter is not a phenomena that pertains to transmission of dogital data. Jitter comes into play during the DAC process. Data input to the DAC process is provided by the Squeezebox, regardless of whether the SB's internal built in or an external DAC is used.
I know this thread hasn't been active for a few months, but here's my two cents on the wifi issues I have experienced with the SB touch; First the touch will show you network and wifi status, including signal strength and a data integrity graph that can be set to specific KBPS rates so you can easily see if your network throughput is sufficient for the files you are playing. In my experience playing WMA lossless over wireless G, the only time I see buffering dropouts is when there are multiple users on the network doing high data rate downloads, even doing an internet speed test while playing music won't cause buffering if those two operations are the only network traffic. My issue with the SB touch has nothing to do with playback or sound quality, rather I have problems with the SB connecting to my computer after the computer has gone into sleep mode...if I try to connect (play music from the library) while the computer is asleep the network (SB server network, not the work group) fails, requiring a reset of the SB touch to reacquire the connection about 60% of the time. It also occasionally (10% maybe) fails to reacquire the network even if the computer is up and running before the attempt, but had been asleep since the last SB playback.

My solution is that I'm going to use an external USB hard drive to hold my music library, obviating the need to stream the data, it will eliminate the network issues (*never* have problems with Internet radio connectivity), and gives me another backup of the music to boot! It won't even be very costly as a decent external 1TB drive is under $100 these days.
This thread went offtrack to WiFi discussion, but does the OP suggestion of using the USB on the Touch as an output make sense when it as a perfectly good SPDIF connections, both optical and coaxial?

Awa54;

I have read that the Touch does not do well with large music collections through it's USB port because of the hardware just isn't as fast as a dedicated server.