How to modify the spectrum of an audio?

This section is now closed.
Forum rules
Audacity 1.3.x is now obsolete. Please use the current Audacity 2.1.x version.

The final version of Audacity for Windows 98/ME is the legacy 2.0.0 version.
Locked
aljeber
Posts: 2
Joined: Wed Sep 21, 2011 3:05 pm
Operating System: Please select

How to modify the spectrum of an audio?

Post by aljeber » Wed Sep 21, 2011 3:08 pm

Hi,

I would like to modify the spectogram of an audio I created that I can make it at a range between 17000 and 21000 hertz. How can I do this?

Thank you for your help.

kozikowski
Forum Staff
Posts: 69374
Joined: Thu Aug 02, 2007 5:57 pm
Operating System: macOS 10.13 High Sierra

Re: How to modify the spectrum of an audio?

Post by kozikowski » Wed Sep 21, 2011 5:07 pm

Since nobody can hear that, many sound cards can't deal with it and you can't put it on a Music CD, what's the job? We need a better idea what you're trying to do.

Koz

DVDdoug
Forum Crew
Posts: 9419
Joined: Fri Sep 10, 2010 11:30 pm
Operating System: Windows 10

Re: How to modify the spectrum of an audio?

Post by DVDdoug » Wed Sep 21, 2011 5:52 pm

Yeah... We need to know what you're really trying to accomplish. You can simply generate some high-frequency tones, or the simplest way to increase the frequency/pitch of an existing file is to simply speed-up playback. Or, you might want an Exciter effect which adds high-frequency harmonics.
...a range between 17000 and 21000 hertz.
...you can't put it on a Music CD.
Of course, you can theoretically go to half the sample rate which is 22,050Hz for a CD. And, if you aren't making a CD, you can use a higher sample rate.

steve
Site Admin
Posts: 81629
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: How to modify the spectrum of an audio?

Post by steve » Wed Sep 21, 2011 7:11 pm

Are you by any chance looking for this: http://forum.audacityteam.org/viewtopic ... 42&t=58548
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

aljeber
Posts: 2
Joined: Wed Sep 21, 2011 3:05 pm
Operating System: Please select

Re: How to modify the spectrum of an audio?

Post by aljeber » Thu Sep 22, 2011 3:05 pm

steve wrote:Are you by any chance looking for this: http://forum.audacityteam.org/viewtopic ... 42&t=58548
this is exactly what I'm looking for.

Thank you all.

Locked