Audacity Forum

steve wrote:When I wrote "absolute min and max values of the sound" I meant "highest and lowest signed values" as seen in .AUP files...

Sigh ... ... - see my comments under Normalize and DC offset correction.

Using INTEGRATE for computing the DC component is a great speed improvement, and usually it's even sufficient to compute the DC component of a few seconds of a sound, because the DC component never changes, otherwise it's no DC. This gives room for further speed improvements. But again reading varia...

Sounds like bug 336... Yes, Nyquist is not 64-bit compatible, where the major problem is that the XLISP garbage collector is hard-coded to 32-bit memory pointers. I'm wondering all the time why Audacity Nyquist plugins do not produce serial crashes on 64-bit computers. But I have still not seriousl...

The bug is that FORCE-SRATE does'nt check for zero or negative numbers. With Audacity_2.0.1 alpha on 64-bit Debian the following code in the Nyquist prompt deletes all selected samples from the Audacity audio track: (force-srate 0 s) Or maybe this is another 64-bit bug and the code wors on 32-bit sy...

Thanks a lot for the plugin, works great. The naming convention in Smith (1997) of the a and b coefficients is reversed compared to Nyquist. I will try to check the Nyquist biquad implementation against the math in Steven W. Smith's DSP book. The numbers in the online version of the DSP book are ver...

Is there anyway to change that control rate in Nyquist? The general pattern for changing global XLISP variables temporally is using PROGV , for example: (progv '(*control-srate*) '(*sound-srate*) ; the code inside PROGV uses *control-srate* = *sound-srate* ) ; end of PROGV automatically restores th...

Perhaps they are "hopeful" ... Of course they are hopeful, because there is a big headline "Where do I get the German Audacity manuals?" and then inside the text box there are two small links to the alpha manual and the outdated German manual, and 95% of the page are detailed explanations "How do I...

... possibly German? In the last three weeks I had more than 1000 clicks on the text box in the German forum, but not a single translation volunteer. The German forum has approx. 4500 members, so to me this reads as "approx. a quarter of the registered users are not interested in having a German tr...

First of all: Thanks to steve and waxcylinder for offering their help. Unfortunately the email discussion had become a little bit off-road, and we have missed to inform all other people about the results. The German problems are partially produced by me myself, because I had maintained a separate Ge...

The only way to change the "Plot Spectrum" in the Audacity "Analyse" menu is adding new functions to the Audacity C/C++ source code. The builtin Audacity Nyquist FFT functions are broken (see this thread ), so writing a plugin with already builtin Audacity Nyquist functions is currently not possible...