it shows 5 analyzers
voxengo span in renoise master channel,
signalanalyzer in renoise master channel,
ableton live internal
adobe audition internal
track headroom in renoise is at 0db
the signal is the same wav in every case, a steady saw wave at 444hz
all slopes are set to 0/none
all analyzers have a block size of 16384
all analyzers display log
i dont think this is a testing method error
why is every analyzer peaking at about -6db but renoise internal at -20db ?
I tested this issue using a sine wave and compared renoise’ internal analyzer with Melda’s MAnalyzer… Renoise shows the peak at about -26dB while MAnalyzer shows it at about -20dB. One thing that you should be careful about is the slope, see if all analyzer’s slope factors are set to the same amount, preferably 0.
No, I’m saying that Renoise’s reported levels change by an extortionate depending on the blocksize set, especially at higher frequencies. It appears to remain a lot flatter at a low blocksize but then your frequency reporting is a lot less accurate. At a high blocksize you get peaks and dips before a massive rolloff at the upper end. Doesn’t seem right at all!
As you can see I’ve already compared Log to Lin and mentioned (some of) the differences. In fact Log and Lin seem to report different peaks and dips of level for sine wave at different frequencies.
Load the Chip-Sine instrument packages with Renoise.
Play a note at C-4 to give a nice steady tone.
Set Transpose for the instrument to 67.
In Log mode you have a measurement about the same as for the rest of the range. In Lin mode it is reported about 60dB lower.
Now try a Transpose of 66.
Now Log reports it as ridiculously low. Lin mode is also still far lower than it should be but now higher than that reported at 67 Transpose. (Finetune of -21 gives you almost the reverse display of using Transpose 67. The reading for Log falls below the bottom of the measured scale between about -5 and -20 finetune though.)
Hi… I just mastered this track tonight… I think the voxengo has a little more, “hi definition,” but the metering looks the same to me…
I think the Renoise metering is accurate, but I also think that these analyzers have all kinds of settings, and readings, and graphs, and I am pretty sure that the Renoise master spectrum is looking at RMS and some of your other analyzers are looking at peak, and if you tweak there settings, you might be able to match the appearance of the one in Renoise, and therefore you can confirm for yourself and all…
Edit again = here is another image of the same track… I think it is possible that the Renoise one might even be more accurate, but if you notice with your eyes, the difference is either rs-met is not accurate, or latency is screwing it up… and the difference between the two of the is minimal imho
Below, the same track in my old copy of Live 7… That is the Spectrum Plugin from Live…