You are viewing a single thread.
View all comments View context
11 points

Uh huh… The Oxford definition literally says that’s untue.

of or involving sound waves with a frequency above the upper limit of human hearing

permalink
report
parent
reply
-5 points
*

sorry I can still here it… I sometimes needs to go to the hospital for a check-up on my heart, and I can hear the ultrasound if the device is going over my head.

permalink
report
parent
reply
0 points
*

Not everyone has the same hearing range (it tends to get worse as you get older, hence those ultrasonic teenager repellers that people claim are for cats). If a device is running at the very low end of what we consider ultrasound and OP can hear higher than most then maybe they can hear the sensors. I would be surprised if an ultrasonic sensor was running this low though.

permalink
report
parent
reply
13 points
*

People often believe they are hearing ultrasound, but instead are hearing clicking noise or sub-frequencies emitted from the capsule that are not actually part of the ultrasound.

permalink
report
parent
reply

Android

!android@lemdro.id

Create post

The new home of /r/Android on Lemmy and the Fediverse!

Android news, reviews, tips, and discussions about rooting, tutorials, and apps.

🔗Universal Link: !android@lemdro.id


💡Content Philosophy:

Content which benefits the community (news, rumours, and discussions) is generally allowed and is valued over content which benefits only the individual (technical questions, help buying/selling, rants, self-promotion, etc.) which will be removed if it’s in violation of the rules.


Support, technical, or app related questions belong in: !askandroid@lemdro.id

For fresh communities, lemmy apps, and instance updates: !lemdroid@lemdro.id

💬Matrix Chat

💬Telegram channels / chats

📰Our communities below


Rules

  1. Stay on topic: All posts should be related to the Android OS or ecosystem.

  2. No support questions, recommendation requests, rants, or bug reports: Posts must benefit the community rather than the individual. Please post to !askandroid@lemdro.id.

  3. Describe images/videos, no memes: Please include a text description when sharing images or videos. Post memes to !androidmemes@lemdro.id.

  4. No self-promotion spam: Active community members can post their apps if they answer any questions in the comments. Please do not post links to your own website, YouTube, blog content, or communities.

  5. No reposts or rehosted content: Share only the original source of an article, unless it’s not available in English or requires logging in (like Twitter). Avoid reposting the same topic from other sources.

  6. No editorializing titles: You can add the author or website’s name if helpful, but keep article titles unchanged.

  7. No piracy or unverified APKs: Do not share links or direct people to pirated content or unverified APKs, which may contain malicious code.

  8. No unauthorized polls, bots, or giveaways: Do not create polls, use bots, or organize giveaways without first contacting mods for approval.

  9. No offensive or low-effort content: Don’t post offensive or unhelpful content. Keep it civil and friendly!

  10. No affiliate links: Posting affiliate links is not allowed.

Quick Links

Our Communities
Lemmy App List
Chat and More

Community stats

  • 2.6K

    Monthly active users

  • 2.7K

    Posts

  • 34K

    Comments