notch filter effect

[steve]

@lel

A: Is Audacity even doing the same thing as the program the guy in the video is using?

Yes it is.

@lel

After using Audacity I don’t notice as much of a change as when he edited his.

He was removing a lower frequency band, so the effect on the music will be more noticeable in his case.

@lel

B: Is it ok I’m using 2.0.3 and the plug in to do this? Or should I be using Notch Filter that comes with 2.0.3?

Yes you can use the effect in Audacity 2.0.3.
The audio frequency band (audible frequencies) range from about 20 Hz to 20,000 Hz. The idea of this “treatment” is to remove a small part of that frequency range, centred on the frequency that matches your condition. The video suggests removing one octave, centred on the “tinnitus frequency”. Previous users / tinnitus sufferers on this forum have suggested a narrower frequency range such as half an octave. I’m not a doctor so I can’t comment on the best “width” to use.

The Audacity “notch” filter removes a very narrow frequency band, which according to that video and other posts on this forum will be too narrow.
I wrote the Band Stop filter plug-in based on the requirements specified by a tinnitus sufferer that wrote to this forum that was asking how to do what you are asking for, so this plug-in should be just the job

@lel

C: With Band Stop - I noticed the slider is only going up to 10,000, but you can type in your number. Is it still takeing in the effect of the number 10530 that I typed in?

The figure of 10,000 was based on the initial requirements that the previous person asked for. Yes it will accept and use higher frequencies that you type in, though the plug-in can be easily modified to suit your exact needs:

The bandstop.ny file can be opened in a plain text editor such as NotePad. Open the file in NotePad and replace the line:

;control freq "Center Frequency" real "[Hz]" 1000 100 10000

with this line:

;control freq "Center Frequency" real "[Hz]" 10530 1000 15000

That will set the slider range from 1000 to 15000 and the default centre frequency to 10530 Hz.
Save the file after making the change, and check that NotePad does not change the file extension (the file name must end in .ny)

@lel

D: Any other helpful advice or usful info on this matter would be greatly appreciated.

If you want to process a lot of audio files in this way, you can do so by creating a “Chain” to process and then export the processed file. The “Chain” can then be applied to multiple audio files provided that they are all in the same folder. See these two links for more information about using Chains:
http://manual.audacityteam.org/o/man/apply_chain.html
http://manual.audacityteam.org/o/man/edit_chains.html