Is 2009 the year of Linux malware?
Is 2009 the year of the linux desktop malware? How long until we see headlines like, "Researchers find massive botnet based on linux 2.30"?
Draw waveforms and hear them
Posted 13 years ago
A while back I thought it would be interesting to be able to draw arbitrary waveforms and then listen to how they sound. I had an audio engine just laying around, so I whipped up a quick application to do that.
download WaveStudio.exe
download WaveStudio.exe
Results
In theory, you can make any sound that you want. The results aren't very interesting. You can draw a sine wave and it sounds muffled. Add some jagged edges and the sound starts to sound more raw and high pitched. But it's okay to demonstrate what a sawtooth vs. sine vs. square wave sound like.
Future work
It would be a better to be able to draw in the time vs. frequency domain, using standard brush painting tools. Thay way you could come up with more interesting waveforms.
Steve Hanov makes a living working on
Rhymebrain.com,
PriceMonkey.ca,
www.websequencediagrams.com,
and Zwibbler.com. He lives in
Waterloo, Canada.
Post comment
edit
ProDigit
eight months ago
Nice!
It's very hard to get a good timbre out of these basic sounds.
It would be nice to have the sound pulse (attack, and lower volume sustain), and select between pingpong or looping the sustain part.
I would love to see a similar program, that allows for more timbre. I wouldn't know how to implement it though...
edit
Jaïr
one year ago
Really interesting! Would love to see a drawing feature, or have this turned into a phone application. Very useful for learning purposes.
edit
zelukai
two years ago
umm when I click "new" it doesn't do anything, the only other option is a sawtooth, and then I have to put all of the points on the left side and copy them a bunch to actually make a customized waveform... is this normal? Kevin's recommendation is pretty good too.
edit
Kevin
nine years ago
If you could turn that into an iPad app, with frequency controls, volume controls and a few basic effects like reverb/flange that would kick ass!
Is 2009 the year of the linux desktop malware? How long until we see headlines like, "Researchers find massive botnet based on linux 2.30"?
Game Theory, Salary Negotiation, and Programmers
When you get a new job, you can breathe a sigh of relief, but not for long. You have an offer letter in your hand, and it is easy to miss one of the most important opportunities of your life: the starting salary. Here's what to do to increase your chances.How to detect if an object has been garbage collected in Javascript
If you are writing an application in Javascript, soon you will have to worry about memory leaks. But it is difficult to even know if a memory leak exists. This handy method can help.Succinct Data Structures: Cramming 80,000 words into a Javascript file.
jQuery creator John Resig needs a little help storing lists of words in his side project. Let's go overkill and explore a little known branch of computer science called Succinct Data Structures.
cairo blur image surface
This really should have been included in cairo. Instead, everyone that wants to have shadows has to roll their own blur function. Here's my take on it. I'll even release this into the public domain.
Zwibbler: A simple drawing program using Javascript and Canvas
Now it's a commercial product, but Zwibbler was once a fun side-project, and here's some details on its implementation.