rbl wrote:
> TBH I am a little surprised that the effect is so pronounced and am not
> quite sure exactly what is going on, esp as I am doing a lot of
> averaging!
>
I cant help you there, I have no practical experience. It looks as if
your process brings out some kind of low frequency end eff
mrw wrote:
> Perhaps your sampling frequency steps are too large to accurately
> capture energy per octave at the low end. Also seems to show up with
> your White noise plotted against octave.
Good point!
The FFT size and sampling frequency were set to 4k and 44.1kHz
respectively (spatial reso
rbl wrote:
>
> However pink noise and the "Octave" X-axis gives flat down to 500Hz (as
> expected) but then rising below 500Hz.
Perhaps your sampling frequency steps are too large to accurately
capture energy per octave at the low end. Also seems to show up with
your White noise plotted against
Glad you found the error, it would have been an extremely weird problem
if not !
Jeff
*Players:* SliMP3,Squeezebox3 x3,Receiver,SqueezeLite-X,PiCorePlayer x3
*Server:* LMS Version: Latest Nightly on Centos 8.0 VM on ESXi 6.5.0U3
on Dell T320
*Plugins:*
AutoRescan/BBCiPlayer/PowerSave/PowerSw
Apologies for not being clear in the OP and for the late response. I had
to find time to do more tests.
The upper half of the screen shot is the waveform and can be ignored.
The lower half is the spectral analysis. Green is the SB3's headphone
output, and red is the phono output. My understandin
I don't know how to interpret the screen shots you've included.
What are the two plots? Is the top plot the waveform and the bottom plot
the spectral analysis?
What is the difference between the red and green traces?
If the bottom plot is a frequency analysis, and you're using pink noise,
then wh
I connected the various SB3 outputs to my PC via a Tascam US-122L USB
audio interface. The PC acted as a spectral analyser, the relevant
results are in the image below (each Y division = 3dB). What I do not
understand is why the bass response increases by 9dB at 20-30Hz on the
phono and coax outpu
