Search found 59476 matches

by steve
Sat May 05, 2018 11:06 am
Forum: Windows
Topic: .xml file edit
Replies: 4
Views: 740

Re: .xml file edit

shevie wrote:I inadvertently edited the tag.xml
How do you "inadvertently" edit a file?
shevie wrote:How do I correct my error please?
As (I assume) you are not very familiar with XML, it's probably easiest to just delete the files and export new ones from the Metadata Editor.
by steve
Sat May 05, 2018 10:52 am
Forum: Windows
Topic: Error opening device since update to 1803 [SOLVED]
Replies: 12
Views: 2242

Re: Error opening device since update to 1803 [SOLVED]

JD's suggestion is spot on, however wonky. <g> I now have two computers that have been pushed to 1803, and both have been "fixed" by turning on the mic and turning off the apps. Thanks for the update. I've added a link to JD's post so that others may find that post easily, and shall now c...
by steve
Sat May 05, 2018 10:46 am
Forum: Windows
Topic: Low Recording Volume
Replies: 14
Views: 2003

Re: Low Recording Volume

Rafferty wrote:Concluding, I can only assume the problems is with the PSR E453.
Does the playback volume of the PSR E453 affect the recording level?
by steve
Sat May 05, 2018 9:20 am
Forum: Nyquist
Topic: Notch filter with loop
Replies: 45
Views: 6868

Re: Notch filter with loop

Why don't you just update Audacity to the current version? You can get it here: https://www.audacityteam.org/download/
by steve
Sat May 05, 2018 1:45 am
Forum: Nyquist
Topic: Notch filter with loop
Replies: 45
Views: 6868

Re: Notch filter with loop

Your final line is wrong.
You have this:

Code: Select all

(multichan-expand #'notch2 s freq q)
but it should be "notch" and not "notch2".
by steve
Fri May 04, 2018 5:35 pm
Forum: macOS
Topic: Find original sound from modify sound
Replies: 4
Views: 241

Re: Find original sound from modify sound

I would guess that there may have been some speech in there. I doubt that it is possible to recover the original audio from the given information.
by steve
Fri May 04, 2018 5:10 pm
Forum: macOS
Topic: Find original sound from modify sound
Replies: 4
Views: 241

Re: Find original sound from modify sound

Unless you know how it has been modified, or it has some resemblance to the original sound, there may be no way to find the original sound.
by steve
Fri May 04, 2018 4:50 pm
Forum: General Audio Programming
Topic: FPGA implementation of noise removal
Replies: 4
Views: 3800

Re: FPGA implementation of noise removal

Audacity's noise reduction starts with FFT analysis of the noise to create a noise profile. This is an important step that has great impact on the effectiveness of the noise reduction. When the noise reduction is applied, the algorithm does not gate to silence, but reduces the level by a specified a...
by steve
Fri May 04, 2018 2:26 pm
Forum: Nyquist
Topic: Notch filter with loop
Replies: 45
Views: 6868

Re: Notch filter with loop

I'd suggest keeping it so it counts the harmonics automatically so no "number of harmonics" There has to at least be a count of the notches within the code - you don't want it looping to infinity. So even if you don't have a user control for the number of notches, you have to decide how m...
by steve
Fri May 04, 2018 10:55 am
Forum: Windows
Topic: Comparing sound/Comparing Plot spectrum
Replies: 8
Views: 1721

Re: Comparing sound/Comparing Plot spectrum

This worked quite well I think. I can get a percentage difference between levels (dB). It's definitely a start Thanks again A note about the spectrum dB scale: In effect, the spectrum analysis splits the audio signal into multiple "frequency bins". The number of bins is half the "Siz...