How to find out if the speakers are 20khz compatible? + need to be a native speaker?

[Sub]

Hey
I want to start with subliminas. Two questions:

How can I find out if the built-in speakers of my laptop and my mobile phone (A5, 2017) are 20kHz compatible? Because in the night I want to hear with them the ultrasonic subliminals.

And do I need to be an English Native speaker? Because I am from Europe and English is only my second language and my skills are not so good.

Thanks

Regards

[4Kingdoms]

How can I find out if the built-in speakers of my laptop and my mobile phone (A5, 2017) are 20kHz compatible? Because in the night I want to hear with them the ultrasonic subliminals.

Download this program onto your laptop to test your speakers.
http://www.subliminal-shop.com/product/speaker-test/

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Download FrequenSee - Spectrum Analyzer to your phone and watch it at the same time you are testing your speakers.

iPhone
https://apps.apple.com/us/app/frequensee...d583945921

Android
https://play.google.com/store/apps/detai...e&hl=en_US

[fab10]

And do I need to be an English Native speaker? Because I am from Europe and English is only my second language and my skills are not so good.

No, you do not need to be a native speaker. Besides, judging by your writing skills your English is good.

[Sub]

How can I find out if the built-in speakers of my laptop and my mobile phone (A5, 2017) are 20kHz compatible? Because in the night I want to hear with them the ultrasonic subliminals.

Download this program onto your laptop to test your speakers.
http://www.subliminal-shop.com/product/speaker-test/

---

Download FrequenSee - Spectrum Analyzer to your phone and watch it at the same time you are testing your speakers.

iPhone
https://apps.apple.com/us/app/frequensee...d583945921

Android
https://play.google.com/store/apps/detai...e&hl=en_US

Thx. I did this. With my ears I cant hear something after around 21-25 seconds. But in the app is shown something. At first around -35 - -50dB. Than it gets quieter at the 7.5k mark to -50 - -70 and at the end it gets a bit louder again. But during the complete time you can see a peak in the app.

Does it mean, that the speaker ist compatible?

And do I need to be an English Native speaker? Because I am from Europe and English is only my second language and my skills are not so good.

No, you do not need to be a native speaker. Besides, judging by your writing skills your English is good.

Thx. I hope you are right. I will try it.

[Shannon]

If at any time you start hearing static while the frequency is above 10 kHz, then your speaker may not be able to reproduce ultrasonic pitches. Usually it will be the last several seconds that produce that static if there is an issue.

If you didn't get static, then your speaker is good to go.

[Sub]

If at any time you start hearing static while the frequency is above 10 kHz, then your speaker may not be able to reproduce ultrasonic pitches.  Usually it will be the last several seconds that produce that static if there is an issue.  

If you didn't get static, then your speaker is good to go.

Ok. Thanks. I am not sure about that. I can hear something when I increase the volume while the frequency ist above 10khz. But for the last few seconds I can hear also a static.

In the FrequenSee app I can see something for all the time. But this doesn't matter?

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Can someone recomment a cheap small speaker which ist 20khz compatible and which is mobile and easy to transport. So that I can use it where-ever I sleep and work?

[Shannon]

If at any time you start hearing static while the frequency is above 10 kHz, then your speaker may not be able to reproduce ultrasonic pitches.  Usually it will be the last several seconds that produce that static if there is an issue.  

If you didn't get static, then your speaker is good to go.

Ok. Thanks. I am not sure about that. I can hear something when I increase the volume while the frequency ist above 10khz. But for the last few seconds I can hear also a static.

In the FrequenSee app I can see something for all the time. But this doesn't matter?

----------

Can someone recomment a cheap small speaker which ist 20khz compatible and which is mobile and easy to transport. So that I can use it where-ever I sleep and work?

Speakers and headphones can be classified in two broad categories:  Those that can effectively reproduce the full range of CD quality sound (20 Hz to 20 kHz) and those that cannot.

If running the speaker test results in static for the last few seconds, you are dealing with something that cannot effectively reproduce ultrasonic audio.  That means the part of it that actually creates the sound is being overloaded, and the result is static, which is random distortion.  That does not allow for the subliminal audio to be understood by your subconscious mind.

If you are playing it very loudly and get that static, but lowering the volume to some degree makes the static go away, then you are dealing with a speaker or headphone that is of the bare minimum level of quality for reproducing ultrasonic audio, and you can usually use those alright.  They typically give some crackling, but not constant static.  They're not the best, but they will do.  

The best is what you play the speaker test on, and once the audio goes past 10-12 kHz, you hear absolutely nothing but the audio from the speaker (if you can hear ultrasonic audio).

FrequenSee will show you the pitch of the audio, but not the distortion level.  It is the distortion level that we are concerned about here.

[fab10]

Can someone recomment a cheap small speaker which ist 20khz compatible and which is mobile and easy to transport. So that I can use it where-ever I sleep and work?

I am currently using Edifier R12U- they are small, cheap, look really sleek, rated 30Hz to 20kHz and pass the speaker test with no cracking. However, it’s two speakers (which is better for subs anyways) and it needs to get power from a phone charger or a USB port, I’m not sure if that would work for you.