SoftwireEngineer wrote: > @Archimago - this is awesome. But it feels like work though (I was > benchmarking some Big Data code yesterday) :-) > If you want to just load the CPU without network, some scripts (like > while 1: ls -lR > /dev/null) would do the trick. > What does the Spectrum Analysis do in RMAA ? Can we run a long 11Khz wav > file and check the spectrum ? As long as it is plotted with good range > and accuracy, just visually it can be checked for any difference. > @AlexM - Are you noticing the difference between SPDIF and USB output > from the same SBT ? Do you notice difference between Toslink and SPDIF ?
Thanks Softwire. Quite a bit of work, but as an 'audiophile' + 'geek', it's been fun :-). Well, it keeps me out of trouble at night after the kids go to sleep at least! RMAA consists of measurement of a "signal test track" essentially which gets played and recorded at the specified sampling rate after calibration of the playback --> recording system. It's convenient since all those results I report are collected in one go - usually done within 2-3 minutes. Furthermore, it's quite trivial to run the track through equipment like the SB devices or even a CD player if I burn the track out. RMAA does has an FFT analysis function so yes, you could record a 11kHz test tone and view it back, but it's not much different from something like Audacity or Audition in this respect. One package I've looked into is ARTA for something like this but will have to go thru the manual a bit more since it's got quite a few tricks up its sleeve including producing test signals like the Dunn J-Test (11kHz sine + 230Hz square). Also, thus far I have not purchased the RMAA "Pro" version which I believe provides more features. Impressed by what the free version can do already! I thought about using the 'while loop' also but in the end decided to see what happens with the more complex multiple TTY instances draining more memory, net traffic, and each process being of high priority; presumably adding to the noise from the machine to see if I could measure it. ------------------------------------------------------------------------ Archimago's Profile: http://forums.slimdevices.com/member.php?userid=2207 View this thread: http://forums.slimdevices.com/showthread.php?t=97950 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
