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From: Krusty on 22 Apr 2010 05:24
Jim wrote:

> On 22/04/2010 10:01, Krusty wrote:
> > 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.
>
> 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.

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.

--
Krusty
From: Malc on 22 Apr 2010 05:25
On 22 Apr, 10:19, "Krusty" <dontwant...(a)nowhere.invalid> wrote:

>
> 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.
>
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.

--
Malc
From: Jim on 22 Apr 2010 05:26
On 22/04/2010 10:24, Krusty wrote:
> Jim wrote:
>> On 22/04/2010 10:01, Krusty wrote:
>> > 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.
>>
>> 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.
>
> 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.

How do you know it works fine if you can't hear it?
From: petrolcan on 22 Apr 2010 05:38
In article <4bd01657$0$2480$db0fefd9(a)news.zen.co.uk>, Jim says...
>
> On 22/04/2010 10:24, Krusty wrote:
> > Jim wrote:
> >> On 22/04/2010 10:01, Krusty wrote:
> >> > 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.
> >>
> >> 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.
> >
> > 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.
>
> 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.
From: Krusty on 22 Apr 2010 05:39
Malc wrote:

> On 22 Apr, 10:19, "Krusty" <dontwant...(a)nowhere.invalid> wrote:
>
> >
> > 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.
> >
> 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.

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.

--
Krusty
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