FOAK: Changing MP3 Frequency.

I've got an MP3 which I want to change to around 22Khz, thus making it
inaudible to humans. Is such a thing possible without buying fancy
software? I've got GoldWave but can't figure out how to do it.

 

Try Audacity pitch shifter.

What on earth are you doing?

 

Sounds like he's going to the dogs.

 

Since most audio equipment available to you is going to use a sampling
rate of 44.1 or 48kHz then surely this isn't going to work - you will
just end up with noise.

 

Thanks, seems to do the trick.

Trying to make the neighbour's dogs kick off every hour through the
night without her knowing why. We'll see if she still thinks their
barking isn't a problem after a week of no sleep.

 

Seems to work fine. The hard bit was finding a playback device with
speakers that work in that range, but my trusty (very ancient) Hitachi
ghetto blaster came to the rescue.

 

Can't you get onto the council about this sort of thing? We did this
with a neighbour of ours and the dog has been quiet ever since.

 

How do you know it works fine if you can't hear it?

 

I'm guessing that it is having the desired effect on the intended
animal.

 

I already did that about the yappie little Jack Russell & she leaves
that locked inside now. I doubt the other two bark enough for the
council to do anything, & don't really want another record against the
house as it'll show up in searches when I try to sell it in a couple of
years.

 

Because I shifted it up a bit at a time. I've left it where I can still
hear it but not very clearly.

 

OK. Basically what I'm saying is that if you could hear it properly it
would sound muffled and distorted. Not that the dogs will mind.

 

If the MP3 is of some grunge metal, they'd not notice the difference.

 

Feeding them ex-lax works, allegedly.

 

The dog going mental should be a clue. Do let us know if this works, it's a
lovely idea.

 

Ummm, isn't this going to keep you awake too?

 

No, I can barely hear them when I'm in the bedroom & they're in their
house. Unlike during the day when she keeps them locked in a cage right
outside my office window for 12 hours a day.

 

Ah, right. That would get annoying, pretty quickly.

 

Because I need something that'll make them bark, i.e. another dog
barking.

 

If you want a doggie annoyer take a look at information unlimited
website , its doubtful you are going to get the range you need from
an mp3