commit 346a9edd35e7061fb5e021f0338b3b558dc2ef9f
parent 8fcd8915a12c80413ea7cff0657b10256c7e18b3
Author: Matt Demanett <matt@demanett.net>
Date: Thu, 29 Nov 2018 23:25:57 -0500
Updated README.
Diffstat:
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/README.md b/README.md
@@ -313,10 +313,10 @@ A four-channel spectrum analyzer.
Features:
- - Range setting: smoothly scrolls the displayed frequency range, from just the lower tenth, to the entire range (up to half the sampling rate).
+ - Range setting: smoothly scrolls the displayed frequency range, from just the lower 10% at full counter-clockwise, to the entire range (up to half the sampling rate) at noon, to the upper 20% at full clockwise.
- Smooth setting: controls how many analysis frames will be averaged to drive the display. A higher setting reduces jitter, at the expense of time lag. For convenience, the knob setting is time-valued, from zero to half a second (internally this is converted to an integer averaging factor based on the sample rate and other settings).
- - Quality setting: switch between good (1024-sample) and better (4096-sample) FFT window sizes. The higher setting yields finer frequency resolution at a higher CPU cost.
- - Off button: turn the unit off to save some CPU without unpatching.
+ - Quality setting: changes the FFT window size. Higher settings yield finer frequency resolution, at a higher CPU cost. The levels and sizes are: GOOD (1024 samples), HIGH (2048 samples) and ULTRA (4096 samples). If Rack's sample rate is 96khz or higher, the sizes are doubled.
+ - Window setting: sets the window function applied to the input to the FFT. The options are Kaiser, Hamming and none/square. The default, Kaiser, is probably best for most purposes.
- Each channel has a THRU output, which passes the corresponding input through unchanged.
#### ANALYZER-XL
