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-- Anyone ever thought of this??

Anyone ever thought of this??

Ok, its not another relationship thread... sorry 2 dissapoint some of u...

however... on my way home from work 2 while listening 2 "Andain - beautiful things" i stopped @ some traffic lights, and a pedestrian was walking some dogs... and i got 2 thinking...

Humans have a selective hearing range, dogs have a higher range... now my question is... could there be some sounds which are heard by dogs, or other animals in our fave tracks which we dont hear?

opinions? thoughts? comments?

Re: Anyone ever thought of this??

quote:

Originally posted by SeeK Ok, its not another relationship thread... sorry 2 dissapoint some of u... however... on my way home from work 2 while listening 2 "Andain - beautiful things" i stopped @ some traffic lights, and a pedestrian was walking some dogs... and i got 2 thinking... Humans have a selective hearing range, dogs have a higher range... now my question is... could there be some sounds which are heard by dogs, or other animals in our fave tracks which we dont hear? opinions? thoughts? comments?

No why would they?

If dogs made trance tracks then maybe but because humans make the songs, whatever they hear, we hear.

Re: Anyone ever thought of this??

quote:

Originally posted by SeeK Ok, its not another relationship thread... sorry 2 dissapoint some of u... however... on my way home from work 2 while listening 2 "Andain - beautiful things" i stopped @ some traffic lights, and a pedestrian was walking some dogs... and i got 2 thinking... Humans have a selective hearing range, dogs have a higher range... now my question is... could there be some sounds which are heard by dogs, or other animals in our fave tracks which we dont hear? opinions? thoughts? comments?

so its giving us subliminal messages ?

humm .. ok!..

Re: Re: Anyone ever thought of this??

quote:

Originally posted by 3jaz so its giving us subliminal messages ? humm .. ok!..

oh no I'm going to freak out now

sometimes when you listen to a track on your computer or a boombox, its hard to hear the really kick ass bass layers..

you need a high power system or hear the song in a club to get the full effect,

my friend, freshman year in the dorms had a massive sound system, to quality subs and everything (when he played music ppl on the floor below us could hear us!) but anyways he played Crystal Method - Vegas CD and track 4, i forget the name of the track off the top of my head.. but its the space one, where they used the effects from NASA..

HIGH ROLLER , i just rememebered it! so yeah listening to that, there is a powerful bass kick underlyng everything that you wouldnt be able to hear on a normal boombox stereo or whatever..


SO yeah it can depend on your setup, on what you hear and don't hear, but as for frequencies that dogs or other animals can hear, i doubt it

^^actually I think what he was talking about was the frequency range that is higher pitched which humans cannot hear and dogs can. kinda like a dog whistle.


I am sure it is possible, however if you burnt a mp3 onto a disk I don't think it would work. When files are in mp3 format you chop off some unesessary frequencies that you cannot hear. however if they were never mp3's and straight from the studio, there might be some distortion that the dog hears that you don't.


but the bottom line is, your not missing out on anything.

dogs have the ablity to hear higher frequencies.

think of hearing ranges of animals this way. The larger the head of an animal, the lower frequencies it hears, and the smaller the head, the higher frequencies it hears.

elephants - low frequencies

so most likely the dogs wouldnt be hearing too much difference of your track because i assume you have an mp3 at 192kbps quality so most of the higher frequencies are cut out anyways.

Dogs can hear >22khz, the end limit of the human audible range (most people can only even hear 18,000-19,000...when I tested myself with an analogue synthesizer, sine waves only up to 18,500 could be heard). Things like CDs right out of a store probably sound very very different to a dog than they do to us.

If you wanted them to sound the same to a dog, you would have to cut all the frequencies above 22khz. Not sure what the point would be though, because we don't even know how well animals can interpret music.

quote:

Originally posted by Dmatrox dogs have the ablity to hear higher frequencies. think of hearing ranges of animals this way. The larger the head of an animal, the lower frequencies it hears, and the smaller the head, the higher frequencies it hears. elephants - low frequencies so most likely the dogs wouldnt be hearing too much difference of your track because i assume you have an mp3 at 192kbps quality so most of the higher frequencies are cut out anyways.

but snakes like *chuck d voice* BASS!

quote:

Originally posted by 3jaz but snakes like *chuck d voice* BASS!

like the episode of the Simpsons when they use Barry White to herd all the snakes in the Simpsons house. haha

good ole Whacking Day!

No because most speakers dont have the frequency response needed for such high frequencies.

quote:

Originally posted by DJ-Fuq No because most speakers dont have the frequency response needed for such high frequencies.

I thought it was the other way around, that most go up to 28k or 30k, and only a few only go up to 22k.

Not if its a CD. CD frequency range's upper limit precisely mathes that of human ear.

Vinyl extends a bit further into dog range.

SACD and DVD-A extend further still.

quote:

Originally posted by Boomer187 ^^actually I think what he was talking about was the frequency range that is higher pitched which humans cannot hear and dogs can. kinda like a dog whistle.

Yes.... what i was tryin 2 get across...

quote:

Originally posted by Boomer187 I thought it was the other way around, that most go up to 28k or 30k, and only a few only go up to 22k.

They do? Shows how much i know then heh

quote:

Originally posted by Lephaid Dogs can hear >22khz, the end limit of the human audible range (most people can only even hear 18,000-19,000...when I tested myself with an analogue synthesizer, sine waves only up to 18,500 could be heard). Things like CDs right out of a store probably sound very very different to a dog than they do to us. If you wanted them to sound the same to a dog, you would have to cut all the frequencies above 22khz. Not sure what the point would be though, because we don't even know how well animals can interpret music.

CD uses a 44 khz sampling rate that places a theoretical limit of its resolution at 22 khz ( according to Nyquist sampling theorem ).

however the practical limit of CD is 20 khz and the extra 2 khz are required to implement filtering that is needed to block all frequencies above 22 khz that would otherwise cause aliasing, which is a form of distortion. ideal filters that would allow a full 22 khz range are not physically realizable only exist in theory.

thus a CD does not actually contain frequencies above 22 khz and has very little between 20 and 22.

quote:

Originally posted by vasyachkin CD uses a 44 khz sampling rate that places a theoretical limit of its resolution at 22 khz ( according to Nyquist sampling theorem ). however the practical limit of CD is 20 khz and the extra 2 khz are required to implement filtering that is needed to block all frequencies above 22 khz that would otherwise cause aliasing, which is a form of distortion. ideal filters that would allow a full 22 khz range are not physically realizable only exist in theory. thus a CD does not actually contain frequencies above 22 khz and has very little between 20 and 22.

Um, lowpass filtering does not take up an extra 2 kHz of bandwidth. I think you are confusing this with MP3 encoding, which typically filters tracks above 20 or 21 kHz because most people cannot hear above that range and that is also where the majority of distortion occurs.

I could see them doing it for CDs as well - but the reasons for this would not be what you said, more like:

1. The Nyquist rate is only a theoretical limit and assumes ideal reconstruction of the output signal; in reality, even if the sampling perfectly captures every frequency up to 22 kHz, the reconstruction process is not ideal, and those 22 kHz frequencies may actually get folded down to 1 or 2 kHz.

2. Most people cannot hear above 20 kHz or even 18 kHz and the intensity of thermal noise is proportional to the bandwidth of the system; hence, filtering sounds above 20 kHz helps reduce the noise floor and makes the recording more accurate.

3. Filtering with a cutoff frequency of 20 kHz does not actually mean that all sounds above 20 kHz will be eliminated; in reality there is an interval between the cutoff (3-dB or half-power) frequency and the point where attenuation is high enough to make it equivalently "zero". When you filter sound, you have a choice between a short cutoff interval and high ripple in the passband, or a longer cutoff interval and a relatively flat passband - obviously for audio, you want the flat passband, so you have to settle for a bit of a "hill" at the end of your filter spectrum. Thus any filtering at 20 kHz would probably be used in order to be absolutely sure that no frequencies above 22 kHz or so are present in the spectrum. This is kind of like what you said, except that the filter isn't actually eliminating frequencies between 20 to 22 kHz - it's just attenuating them, and they will still be present in the final encoding, just at lower amplitudes.

As for canine frequencies, who fuckin' cares.

anyway my point was we and dogs would hear the same thing from a CD cuz CD's range is tailored to our hearing range.

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