Question Not a storage question but I dont on which thread to post this - Sounds samples

[Jackedd]

Hello everyone and I'm sorry since I know this is not on the right thread but I didn't find one for this,

So my question is simple: where can I find samples of ultrasounds? I mean every frequency between 20khz-65khz; (ex: 20khz, 21khz, 22khz...etc.).


Thank you!

 

[kanewolf]

Hello everyone and I'm sorry since I know this is not on the right thread but I didn't find one for this,

So my question is simple: where can I find samples of ultrasounds? I mean every frequency between 20khz-65khz; (ex: 20khz, 21khz, 22khz...etc.).


Thank you!

I moved this to Audio / Home Theater. That seems like a possible fit ...

 

[TerryLaze]

Tone generator - Επίσημη εφαρμογή στο Microsoft Store

Tone generator generates a sinusoidal signal on the set frequency. Can by use for test audio equipment, earphones or speakers, as well as learning tool for physics. You can test tablet speakers frequency range too.

apps.microsoft.com

You can also search google for others, this is just the first one that popped up.
You don't need to download samples and play them, you can just generate them with your futuristic PC components.

 

[kanewolf]

Hello everyone and I'm sorry since I know this is not on the right thread but I didn't find one for this,

So my question is simple: where can I find samples of ultrasounds? I mean every frequency between 20khz-65khz; (ex: 20khz, 21khz, 22khz...etc.).


Thank you!

A 96K sample rate could provide up to 45K wave (approximate). I don't know where you will find such specialized waveforms. Have you thought about using a sine wave generator and creating the waveform on demand ? Used function generators (generic waveform generators) are available -- https://www.ebay.com/itm/364283613435

 

[Jackedd]

Tone generator - Επίσημη εφαρμογή στο Microsoft Store

Tone generator generates a sinusoidal signal on the set frequency. Can by use for test audio equipment, earphones or speakers, as well as learning tool for physics. You can test tablet speakers frequency range too.

apps.microsoft.com

You can also search google for others, this is just the first one that popped up.
You don't need to download samples and play them, you can just generate them with your futuristic PC components.

I saw what you linked, I typed in google ultrasound samples but nothing helpful pop-uped, maybe because of the country I'm in, who knows, or maybe I spelled wrong what I want.
Also regarding your link, it only produces up to 25khz frequency.

A 96K sample rate could provide up to 45K wave (approximate). I don't know where you will find such specialized waveforms. Have you thought about using a sine wave generator and creating the waveform on demand ? Used function generators (generic waveform generators) are available -- https://www.ebay.com/itm/364283613435

I dont want to use a device to produce the waves, I want samples or something like where I can play them through speakers, is that impossible?

 

[kanewolf]

I saw what you linked, I typed in google ultrasound samples but nothing helpful pop-uped, maybe because of the country I'm in, who knows, or maybe I spelled wrong what I want.
Also regarding your link, it only produces up to 25khz frequency.

I dont want to use a device to produce the waves, I want samples or something like where I can play them through speakers, is that impossible?

You could generate the a 50K sine wave and send that to an amplifier. You would create a 1V peak to peak signal. See this chart -- https://en.wikipedia.org/wiki/Line_level#Nominal_levels An amplifier and speakers doesn't know the difference between a generated signal and one created from an MP3 file.
I don't know what amplifier will pass ultrasonic frequencies.

 

[Jackedd]

Ok, I understand that is pretty hard or next to impossible, but can you please send me a link/links to some ultrasound samples (MP3) or an ultrasound generator?
Because as I said earlier, I don't find something close to what I'm looking for if I just google it and maybe you have something that can help me.

Thanks.

 

[Jackedd]

Coming with some feedback after my "research":
So I found something on the forum here that it is very close to what I'm trying to achieve with my project, here is the post:

https://imgur.com/a/KiLV0cf

View: https://imgur.com/a/KiLV0cf

So basically I need to find an accessory for Pi that can generate ultrasounds or getting the frequency from a generator and send them to ultrasound speakers.
I need something that either can generate the ultrasounds or can receive them from a generator, but they need to be linked to the PI, so I can see/control them through the PI.
I "found" something but I dont think it's accurate for what I need, since its saying "detector" :

https://imgur.com/a/Aa7nv6d

View: https://imgur.com/a/Aa7nv6d

I don't need something that emits ultrasounds when it detects something, I want to emits ultrasounds when I tell him to, basically I need to be able to control when he emits ultrasounds with the PI, do you think I can find such accessories or are the ones above good?

Thank you!

 

[kanewolf]

Coming with some feedback after my "research":
So I found something on the forum here that it is very close to what I'm trying to achieve with my project, here is the post:

https://imgur.com/a/KiLV0cf

View: https://imgur.com/a/KiLV0cf

So basically I need to find an accessory for Pi that can generate ultrasounds or getting the frequency from a generator and send them to ultrasound speakers.
I need something that either can generate the ultrasounds or can receive them from a generator, but they need to be linked to the PI, so I can see/control them through the PI.
I "found" something but I dont think it's accurate for what I need, since its saying "detector" :

https://imgur.com/a/Aa7nv6d

View: https://imgur.com/a/Aa7nv6d

I don't need something that emits ultrasounds when it detects something, I want to emits ultrasounds when I tell him to, basically I need to be able to control when he emits ultrasounds with the PI, do you think I can find such accessories or are the ones above good?

Thank you!

This is a much different problem than "find me some ultrasonic audio". Programatically controlling WHEN ultrasonics are output is very different problem.
How are you planning on testing that you are creating ultrasonic audio ?

 

[Jackedd]

I know it's much different because initially I didn't know that ultrasounds basically needs to be created in order to "be a sound" and it's not like a simple sound from a music or things like that.
Well I don't think testing is the problem, because with the piezoelectric transducer and a sine-wave-triangle I can achieve basically any ultrasound I want in the frequency interval 20khz-60/70khz.
The problem is can I link the piezoelectric transducer and a sine-wave-triangle that generates me the frequencies to a Pi and control it? lets say I want to generate x frequency, then y frequency with my Pi.
Or is there a Pi accessory that can generates ultrasounds?

 

[kanewolf]

I know it's much different because initially I didn't know that ultrasounds basically needs to be created in order to "be a sound" and it's not like a simple sound from a music or things like that.
Well I don't think testing is the problem, because with the piezoelectric transducer and a sine-wave-triangle I can achieve basically any ultrasound I want in the frequency interval 20khz-60/70khz.
The problem is can I link the piezoelectric transducer and a sine-wave-triangle that generates me the frequencies to a Pi and control it? lets say I want to generate x frequency, then y frequency with my Pi.
Or is there a Pi accessory that can generates ultrasounds?

Search for USB function generator. That is probably the simplest option.

 

[Jackedd]

Yea, I searched but I don't think I'm looking at the right stuff.
Can you please give me a link here to an USB function generator so I know how it looks like the one you are talking about?

Thank you!

 

[kanewolf]

Yea, I searched but I don't think I'm looking at the right stuff.
Can you please give me a link here to an USB function generator so I know how it looks like the one you are talking about?

Thank you!

I saw this one -- https://www.amazon.com/Velleman-PCGU01-USB-Function-Generator/dp/B07N7LSBMW

 

[Jackedd]

Soo, on amazon its out of stock and i found it here https://whadda.com/product/usb-function-generator-pcgu01/ but it looks kinda expensive and i dont see how can i wire it to my Pi.
However, I think thats the only USB function generator I saw, is there any other?
And, are these also good, can I wire them to my PI? https://www.sigmanortec.ro/en/dds-function-generator-adjustable-frequency and https://www.aliexpress.com/item/100...6419550&spm=a2g0o.ppclist.product.mainProduct
Is DDS good or can i connect it to my PI, or the USB one is the best option?