Audacity Forum

immmortal wrote: ↑

Thu Nov 07, 2019 6:53 pm

I need advice how to convert this to -dB. Or better dB to amplitude.

Linear to dB in pseudo-code dB to linear in pseudo-code

2.1.2 on Win XP That may be too old to run the script. Try this version ;version 3 ;type analyze (setf steplen 0.2) ;size of blocks in seconds (setf thresh-db -24) ;dhreshold for sound detection ;; For one data point every 'steplen' seconds, we need to look at the ;; peak level each 'steplen' secon...

A mono track in Audacity will normally play through left and right speakers. If you pan it to the left, then there will be more out of the left then the right speakers. If you pan it all the way to the left, then it comes out of the left speaker only. Similarly if you pan a mono track to the right, ...

It looks like Audacity knows and allows input of 4 channels but how does one pan individual channels within Audacity? If you are able to record 4 channels at the same time, then Audacity records whatever comes over USB as "channel 1" and "channel 2" as the left and right channel...

Which version of Audacity are you using?

"Snap To" should normally be off. See: https://manual.audacityteam.org/man/selection_toolbar.html#snap I tried using the Selection Toolbar to move the cursor to a desired time, and it didn’t work. It does work. Ensure that you are using it as described in the manual: https://manual.audacit...

Shut down Audacity completely, and restart.

Is the result in seconds? I don't know what you mean. The result is 1's and 0's as you requested. As described in the code comments (of the Nyquist script that I posted), the selected audio is processed in blocks ("steps") of 0.2 seconds. If the peak level in a block is greater than the t...

immmortal wrote: ↑

Thu Nov 07, 2019 12:28 pm

Is it possible to write the data to file?

Yes it's possible, but much easier to just run the code with the "Debug" button, then (manually) copy and paste from the debug window into a file.

But on different file it worked fine. The file that you sent is mono. The code is written for mono tracks only. I would increase the level a bit to accept more noise. The "threshold" level is set here: ;; Convert the "threshold" of -33 dB to linear-scale (setf threshold (db-to-l...