The graph оf spectrum looks:
Does it exist audacity effect, which allows to remove the horizontal lines from the upper part or middle of the spectrum? What do these lines mean?
The graph оf spectrum looks:
The spectrum may be viewed by switching the track to the “Spectrogram” or “Spectrogram (log f)” view: http://manual.audacityteam.org/o/man/track_drop_down_menu.html#spgram
Horizontal lines indicate the presence of a tone or a narrow band of frequencies. If the band is high in the spectrum, that may be audible as a high pitched whistle sound. horizontal lines can be filtered out using the notch filter: http://manual.audacityteam.org/o/man/notch_filter.html
To filter out high frequencies, use the low pass filter: http://manual.audacityteam.org/o/man/low_pass_filter.html
To filter out low frequencies, use the high pass filter: http://manual.audacityteam.org/o/man/high_pass_filter.html
For more complex filtering, see the Equalization effect: http://manual.audacityteam.org/o/man/equalization.html
The next version of Audacity will include additional tools for spectral editing.
After selecting the whisle, whiсh is necessary to remove, and clicking the “Speсtral edit multi tool” appears:
I want to avail myself of the " Speсtral edit multi tool", to remove selected frequency, not to enter its value in “Notch filter”.
I can’t read Russian. What does the error message say?
That is not a released version of Audacity. Which exact version is it?
Please, explain, how can I change language to English in this version? Is it necessary to download Audacity 2.0.6 again and choose the language, while installing? I 'll send error message again.
Please see: Audacity Manual
Report error. Please, explain!
Look in the Audacity plug-ins folder and find the file: SpectralEditMulti.ny
Please attach that file to your reply using the “upload attachments” feature below the message composing box.
File from Plug-Ins.
SpectralEditMulti.ny (1.53 KB)
That looks OK.
I’m not able to reproduce the problem here. Do you always get that message? Does it ever work?
Where did you get that version of Audacity from? Did you build it from the source code?
Download from the page:
Then extract from the archive, send to used folder, install lame, as usual, it normally works, except this effect. I didn’t use this effect before. Is it certainly to locate the program in Program Files(x86)? What does it mean “build from the source code”, I don’t know.
I’ve tested the Dec 22 build from http://gaclrecords.org.uk/win-nightly/ and I can’t reproduce the issue.
While Audacity is closed (shut down), open the folder that contains the “audacity.exe” file, and create a new empty folder (in the same directory as the “audacity.exe” file).
Rename that new folder “Portable Settings” (without quotation marks).
Now start Audacity. You should see the “Welcome” screen.
Generate some “noise” (Generate menu), switch to the Spectrogram view, make a spectral selection and apply the “Speсtral edit multi tool”.
Does the effect work?
It doesn’t works. Can you send from http://gaclrecords.org.uk/win-nightly/ to my address:
or to the one-click hosting the latest version, where the effect is checked and works ?
What happens? Do you get that exact same error message?
Yes, I get. One more question, can I apply the effect “Low pass filter with Q” for cutoff frequency greater, then pointed maximum 10000 Hz? For example, 15000, 16000…
- Open Audacity
- Generate 30 seconds of “white noise”
- Change the track to the Spectrogram view (the track is selected)
- Make a spectral selection from about 4 kHz to about 6 kHz
- Apply the “Spectral edit multi tool”
- Open “Analyze > Plot Spectrum”
You should see something similar to this:
Yes, but must be less than the “Nyquist frequency” (half the sample rate).
I can’t apply it for this message! Please, send screenshot, which must appear after clicking “Spectral multi tool edit”, when the effect works correctly. Thank you for the answer about Low pass filter!
Please try this version. Copy it into the Audacity plug-ins folder and restart Audacity. When installed it will appear below the other “Spectral edit multi tool” as
“Spectral edit multi tool 2…”
The slider control on this version does nothing, but it allows us to access the “debug” button.
When you run it, click on the “Debug” instead of the “OK” button.
After running, a “debug” screen should appear that may contain useful debugging information. Please copy and paste any text that appears in the debug screen into your reply.
SpectralEditMulti2.ny (1.59 KB)
After clicking “Debug” appears (screenshot1):
Then, press “OK” and now apeears (screenshot2):