5 ms·

Accoustic weapon in JavaScript

28 points by brianshumate 15y ago

bherms 15y ago
"Can't find variable webkitAudioContext" error in chrome, ff, and safari for me.
- jarin 15y ago
  I got the same thing, but enabling Web Audio in about:flags fixed it.
gmaster1440 15y ago
In Chrome, navigate to "about:flags" and enable Web Audio. Restart browser and it should work!
- robinduckett 15y ago
  Yeah doesn't work in Chrome 11
  - mkopinsky 15y ago
    Yeah, I don't have a Web Audio flag in about:flags in Chrome 11 on Linux.
drgath 15y ago
If you were like... "Whoa! OMG, I didn't know browsers could do this?" It's a relatively newly implemented API. Spec: https://chromium.googlecode.com/svn/trunk/samples/audio/specification/specification.html#JavaScriptAudioNode-section https://chromium.googlecode.com/svn/trunk/samples/audio/spec... Mozilla API: https://wiki.mozilla.org/Audio_Data_API https://wiki.mozilla.org/Audio_Data_API
- robinduckett 15y ago
  Shame it doesn't work on Linux.
  - rwaldron 15y ago
    No kidding, especially considering this: http://lists.w3.org/Archives/Public/public-xg-audio/2011Feb/0000.html http://lists.w3.org/Archives/Public/public-xg-audio/2011Feb/...
deleted 15y ago
[deleted]
kaichanvong 15y ago
"Turn that off before I hit you," @jaylett
kaichanvong 15y ago
Try putting in 1 and just adding 0's :) Wonderful!
CaptainLurk 15y ago
Sounds like birds chirping and a stream. Am I missing something?
- rwaldron 15y ago
  change the hz value... the higher you go, the more dangerous it is.
giberson 15y ago
This may seem like a silly question, but is it safe to try at home? [especially if you live alone] IE, is there a potential that upon activating the demo to become instantly incapacitated and unable to stop it?
- drgath 15y ago
  I ran it on JSFiddle (http://jsfiddle.net/BGW5u/ http://jsfiddle.net/BGW5u/) a few minutes ago, and everything went fine. Though, I now strangely have a craving of human brains for breakfast. So, yeah, it's safe. braaaaaaiiiinnsssss
  - rwaldron 15y ago
    Hahaha, nice!
peregrine 15y ago
http://jsfiddle.net/ktsum/ http://jsfiddle.net/ktsum/ Here is a jsFiddle with the code.
- robinduckett 15y ago
  http://jsfiddle.net/RffRn/ http://jsfiddle.net/RffRn/ Here is a jsFiddle with the code that actually works, or it would, if I had a browser that supported this that didn't crash the second I tried to do anything with it.
  - peregrine 15y ago
    My bad.
- drgath 15y ago
  <script src="audio-test.js"></script> Doesn't actually point to anything in your fiddle.
robinduckett 15y ago
Tried it in Chrome 13, the tab crashes immediately. Commented out the "new webkitAudioContext()" and the page loaded. :( I did enable the Web Audio in the flags.
deleted 15y ago
[deleted]
ltamake 15y ago
Creepy.
BoppreH 15y ago
Tested with Chrome 11.0.696 (couldn't find the Web Audio flag), Opera 11.10, Firefox 6.0a1 and even Internet Explorer 9. No sound at all. Can someone give a description of what's supposed to happen?
- rwaldron 15y ago
  Doesn't work in Firefox, Opera or IE9. It's written with the Web Audio API available in Chrome on OSX (about:flags to enable) All it does is emits an adjustable frequency sine-tone.
  - BoppreH 15y ago
    People have said it many times before, but there's no such flag in this version of Chrome (11.0.696). Is it OSX specific?
    - coleGillespie 15y ago
      read rWaldons comment below...
    - paulirish 15y ago
      It's not available in the stable release. You need to use developer channel Chrome, go to about:flags, enable Web Audio there. Then you can restart and begin abusing your eardrums. :)
    - rwaldron 15y ago
      http://news.ycombinator.com/item?id=2541317 http://news.ycombinator.com/item?id=2541317
rwaldron 15y ago
Hey everyone! I wrote this little toy... I'm glad you're all enjoying it. NOTE: OSX, Chrome dev channel (12.0.733.0 dev is the version I wrote this in) w/ Web Audio API enabled is the only way this is going to work for you. Everyone else will have to wait until the API is implemented in your OS of choice. Lastly, there are very _real_ dangers of exposure to high frequencies such as: hearing loss, nausea, dizziness and vertigo (to name a few). Running this code is your choice, so handle with care!
- ChuckMcM 15y ago
  Having done actual experimentation with weaponized acoustics in college I can assure you that no amount of noise generation on a web page is going to cause harm. Annoyance, yes, harm no. Now if you're on your gaming rig and you have a 300 - 400 watt subwoofer hooked up, I've got a couple of sound files that can give you cramps :-)
  - rwaldron 15y ago
    You have the "brown note" on sound files? Nice!
QQexe 15y ago
works fine on winXP with Chrome 13 (Canary)

28 points by brianshumate 15y ago

bherms 15y ago

"Can't find variable webkitAudioContext" error in chrome, ff, and safari for me.

jarin 15y ago
I got the same thing, but enabling Web Audio in about:flags fixed it.

gmaster1440 15y ago

In Chrome, navigate to "about:flags" and enable Web Audio. Restart browser and it should work!

robinduckett 15y ago
Yeah doesn't work in Chrome 11
- mkopinsky 15y ago
  Yeah, I don't have a Web Audio flag in about:flags in Chrome 11 on Linux.

drgath 15y ago

If you were like... "Whoa! OMG, I didn't know browsers could do this?" It's a relatively newly implemented API. Spec: https://chromium.googlecode.com/svn/trunk/samples/audio/specification/specification.html#JavaScriptAudioNode-section https://chromium.googlecode.com/svn/trunk/samples/audio/spec... Mozilla API: https://wiki.mozilla.org/Audio_Data_API https://wiki.mozilla.org/Audio_Data_API

robinduckett 15y ago
Shame it doesn't work on Linux.
- rwaldron 15y ago
  No kidding, especially considering this: http://lists.w3.org/Archives/Public/public-xg-audio/2011Feb/0000.html http://lists.w3.org/Archives/Public/public-xg-audio/2011Feb/...

deleted 15y ago

[deleted]

kaichanvong 15y ago

"Turn that off before I hit you," @jaylett

kaichanvong 15y ago

Try putting in 1 and just adding 0's :) Wonderful!

CaptainLurk 15y ago

Sounds like birds chirping and a stream. Am I missing something?

rwaldron 15y ago
change the hz value... the higher you go, the more dangerous it is.

giberson 15y ago

This may seem like a silly question, but is it safe to try at home? [especially if you live alone] IE, is there a potential that upon activating the demo to become instantly incapacitated and unable to stop it?

drgath 15y ago
I ran it on JSFiddle (http://jsfiddle.net/BGW5u/ http://jsfiddle.net/BGW5u/) a few minutes ago, and everything went fine. Though, I now strangely have a craving of human brains for breakfast. So, yeah, it's safe. braaaaaaiiiinnsssss
- rwaldron 15y ago
  Hahaha, nice!

peregrine 15y ago

http://jsfiddle.net/ktsum/ http://jsfiddle.net/ktsum/ Here is a jsFiddle with the code.

robinduckett 15y ago
http://jsfiddle.net/RffRn/ http://jsfiddle.net/RffRn/ Here is a jsFiddle with the code that actually works, or it would, if I had a browser that supported this that didn't crash the second I tried to do anything with it.
- peregrine 15y ago
  My bad.
drgath 15y ago
<script src="audio-test.js"></script> Doesn't actually point to anything in your fiddle.

robinduckett 15y ago

Tried it in Chrome 13, the tab crashes immediately. Commented out the "new webkitAudioContext()" and the page loaded. :( I did enable the Web Audio in the flags.

deleted 15y ago

[deleted]

ltamake 15y ago

Creepy.

BoppreH 15y ago

Tested with Chrome 11.0.696 (couldn't find the Web Audio flag), Opera 11.10, Firefox 6.0a1 and even Internet Explorer 9. No sound at all. Can someone give a description of what's supposed to happen?

rwaldron 15y ago
Doesn't work in Firefox, Opera or IE9. It's written with the Web Audio API available in Chrome on OSX (about:flags to enable) All it does is emits an adjustable frequency sine-tone.
- BoppreH 15y ago
  People have said it many times before, but there's no such flag in this version of Chrome (11.0.696). Is it OSX specific?
  - coleGillespie 15y ago
    read rWaldons comment below...
  - paulirish 15y ago
    It's not available in the stable release. You need to use developer channel Chrome, go to about:flags, enable Web Audio there. Then you can restart and begin abusing your eardrums. :)
  - rwaldron 15y ago
    http://news.ycombinator.com/item?id=2541317 http://news.ycombinator.com/item?id=2541317

rwaldron 15y ago

Hey everyone! I wrote this little toy... I'm glad you're all enjoying it. NOTE: OSX, Chrome dev channel (12.0.733.0 dev is the version I wrote this in) w/ Web Audio API enabled is the only way this is going to work for you. Everyone else will have to wait until the API is implemented in your OS of choice. Lastly, there are very _real_ dangers of exposure to high frequencies such as: hearing loss, nausea, dizziness and vertigo (to name a few). Running this code is your choice, so handle with care!

ChuckMcM 15y ago
Having done actual experimentation with weaponized acoustics in college I can assure you that no amount of noise generation on a web page is going to cause harm. Annoyance, yes, harm no. Now if you're on your gaming rig and you have a 300 - 400 watt subwoofer hooked up, I've got a couple of sound files that can give you cramps :-)
- rwaldron 15y ago
  You have the "brown note" on sound files? Nice!

QQexe 15y ago

works fine on winXP with Chrome 13 (Canary)