Effects, Recipes, Interfacing with other software, etc.
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rafaelguedes
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by rafaelguedes » Wed Jul 23, 2014 4:43 pm
Hello guys, can you give me some help?
I just downloaded a .flac CD (which I have the actual CD), but when I look it through Audacity spectrogram there is weird frequency around 16k. It goes through the entire CD. Is it possible it's normal or is it a rip failure? Is there anyway way I can remove all other frequencies to listen just this specific frequency? Thanks!
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steve
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by steve » Wed Jul 23, 2014 5:42 pm
rafaelguedes wrote: Is it possible it's normal or is it a rip failure?
It's possible that it is normal. It is quite common for modern recordings to show such things, but generally they are inaudible.
rafaelguedes wrote:Is there anyway way I can remove all other frequencies to listen just this specific frequency?
Much easier to do it the other way - remove a narrow notch at 16 kHz and see if you can hear any difference.
To remove a narrow notch you would normally use the Notch Filter.
http://manual.audacityteam.org/o/man/notch_filter.html
I notice that only goes up to 10,000 Hz on the slider, but you can enter higher frequencies by typing into the text box.
Use a fairly high "Q" setting, say around 8 or 10.Check the spectrogram track view to ensure that you hit the correct frequency.
