On Tue, 9 Nov 2010, Matthias Blau wrote:
is there any specific reason why dbtorms and friends do not take dB values <=0 as input?
Why ask the question, when it's not going to change, and when you can do : [expr pow(10, ($f1-100)/20)] instead of [dbtorms] [expr log10($f1)*20+100] instead of [rmstodb] That's all.
Kind of reminds one of the Total Ozone Mapping Spectrometer (TOMS) bug http://earthobservatory.nasa.gov/Features/RemoteSensingAtmospher/remote_sensing5.php which is frequently ranked among the top 10 historical software bugs with extreme consequences: It made NASA unaware of the antarctic hole in the ozone layer for years simply because the analysis software ignored ozone values below a certain threshold...
I don't know, it might be some kind of denormalophobia, that is, fear induced by stupid stuff that looks like a bug in the Pentium 4.
So please pd developers, change this or give a good reason for not taking lessons from history.
For the most part, for internals classes such as [dbtorms], there isn't «pd developers», there's Miller and that's all. I don't expect [dbtorms] to change.
However, you could make an externals library that reregisters those two names with different formulas. Unfortunately, abstractions are still not allowed to take over names (without the help of a specially-crafted externals).
_______________________________________________________________________ | Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, QC
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