Thursday, December 31, 2009
Sunday, December 27, 2009
weird...
Hmm, a weird thing happens when I was trying to compile Flex 3 applications with haXe. I was getting a lot of errors of the form:
Field systemManager has different property access than in mx.managers.IFocusManagerContainer (default should be null)
What worked for me was going into
/usr/lib/haxe/lib/flex/1,2/mx
and editting the files so that I removed most of the
(default,null)
instances. Not sure what the problem was here, but things seem to work now.
Saturday, December 26, 2009
epstein_vertebrae
sness fixing broken links in 2022:
A beautiful piece of glass-filled nylon jewelry, which I think was a senior design project, from Molly Epstein of Temple University.
Friday, December 25, 2009
Thursday, December 24, 2009
Wednesday, December 23, 2009
Saturday, December 19, 2009
Friday, December 18, 2009
Thursday, December 17, 2009
stream
icecast
liveice
liveice usage
Video and Audio Streaming with Flash and Open Source Tools
Linux Audio Streaming (live!) using Ices and Icecast
Streaming Audio with Ices and Icecast
edna - an MP3 server, written in python
pilt - A streaming server written in C++, with Python bindings and a web application with a live shell to demonstrate how it works. Uses the liveMedia library for serving content.
Monday, December 14, 2009
Thursday, December 10, 2009
cqrs
CQRS: Crack for architecture addicts
Great quote:
So ask yourself this, you're probably an architect or senior developer. Can the rest of your team fully understand the directions you?ll be giving from your ivory tower? If half of them can't you are choosing the wrong architecture. I don't care if it fits your problem perfectly. If your team can't handle it, it's the wrong choice.
This is so true, code is not just about making your computer do something, it's also for communicating with other people, both on your team and also developers in the future. Ignore this at your peril.
Wednesday, December 09, 2009
Tuesday, December 08, 2009
Monday, December 07, 2009
ip
Using IPython as your default shell - Well, that is going too far for me, I dig my zsh, but an interesting idea.
latex
Latex online renderer
1. Write the anywhere in body section of your HTML document
2. Render it to equation online
unix sockets
Unix domain socket woes - Good reasons not to use Unix sockets. Have to remember this for when we're going to be implementing stuff like this with Marsyas. i.e. don't.
Sunday, December 06, 2009
tonight
Tonight I was slicing up homemade bread that I made today and listening to Infected Mushroom. It makes me happy to think that there are very few other people in the universe that do these two things.
Saturday, December 05, 2009
Friday, December 04, 2009
pattern
Do You See a Pattern? - An architectural theorist who has inspired smart-growth advocates, counterculture DIY-ers, and computer programmers.
Thursday, December 03, 2009
ERR
A really wacky error! I am running Phusion Passenger on Mac OS X, and I was getting a:
500 Internal Server Error
When I was trying to do a POST that went over a certain size limit, about 5960 bytes or so.
It turns out that the web server was trying to write into the directory:
/tmp/passenger.15068/webserver_private
But that directory didn't exist. I created it and all was well.
distributed cognition
Distributed cognition - is a psychological theory developed in the mid 1980s by Edwin Hutchins. Using insights from sociology, cognitive science, and the psychology of Vygotsky (cf activity theory) it emphasizes the social aspects of cognition.
Edwin Hutchins
Edwin Hutchins - Research
James D. Hollan
cognitive ethnography
Ethnography
Symbolic AI
Wednesday, December 02, 2009
Tuesday, December 01, 2009
Monday, November 30, 2009
google cdn
How Google is wasting your bandwidth - Little article about being careful with the syntax you use when you use Google to CDN your javascript.
Sunday, November 29, 2009
mouse
On my sweet beautiful laptop that I make music with, I'm running Windows 7. Being a total Linux nerd, I need my Linux, so I both dual-boot and, more often, use the amazing VirtualBox to host an Ubuntu client. With this, I can run a single session for a long time, weeks in real life time, and often plug in an external mouse. When I do this, it works great, but then later when I don't have my mouse plugged in, I can't use the shortcut of both mouse buttons on the touchpad to do a paste operation.
To fix this, go:
sudo rmmod psmouse ; sudo modprobe psmouse
This will remove your mouse driver and resintall it.
Thursday, November 26, 2009
Wednesday, November 25, 2009
Tuesday, November 24, 2009
hack
Things I learned about organizing a hack day - Wow, that is a lot bigger than I was planning for our mini-music hack day in Victoria.
massive rails find
a = Recording.find :all, :joins => "INNER JOIN annotations ON annotations.recording_id = recordings.id", :select => "record\
ings.*, count(annotations.id) annotations_count", :group => "annotations.recording_id HAVING annotations_count > 1"
From : Find users with at least 'n' items
disco
Disco Project - Disco is an open-source implementation of the Map-Reduce framework for distributed computing. As the original framework, Disco supports parallel computations over large data sets on unreliable cluster of computers.
Monday, November 23, 2009
rails ftw
in this case, ftw does not mean "for the win"
If you get the error:
ArgumentError (A copy of XX has been removed from the module tree but is still active!):
Check your environments/development.rb for config.cache_classes and try
setting it to true:
config.cache_classes = true #false
static
Static, Shared Dynamic and Loadable Linux Libraries
Interesting, I recently learned that your PATH is searched for .so libraries in Linux. "." in PATH means exactly that.
outlier-FM
Outlier-FM - Grand Prize at the recent Boston Music Hack Day
About
OUTLIER FM is a weekend's attempt to utilize advanced technology to search for beauty and surprise in even the most overproduced of popular music. We hope such exceptional moments can be found in OUTLIER's enigmatic soundscapes of reconstituted timbre and rhythmic intersection. It is called OUTLIER because the moments selected for further attention are precisely those moments that exist outside of a song's constructed and statistical conventions.
At its core, then, OUTLIER is about doing away with the package through which a song is carefully prepared for our consumption and rebuilding it from its smallest perceptual units into a strangely unpredictable, minimal techno investigation of sonic wonderment. Working from sophisticated audio analysis provided by The Echo Nest's Public API, OUTLIER provides in addition to audio tracks and radio [ed: SOON] a visual interface for humans and computers alike to become virtuous in high-level sound extraction and resynthesis from pre-recorded audio tracks.
Saturday, November 21, 2009
base
If you get the error:
/var/lib/python-support/python2.6/MySQLdb/__init__.py:34: DeprecationWarning: the sets module is deprecated
from sets import ImmutableSet
Then check out this page. Which says to:
To get rid of this error and use the more efficient built-in set
type, do the following in the __init__.py file that was reported:
* comment line 34: from sets import ImmutableSet
* add after that line: ImmutableSet = frozenset
* comment line 41 in the original file: from sets import BaseSet
* add after that line: BaseSet = set
Like this the built-in types will be used anytime a BaseSet or an ImmutableSet is referenced.
and
In converters.py :
comment line 37 : from sets import BaseSet, Set
add after that line: BaseSet = set
add after that line: Set = frozenset
Friday, November 20, 2009
Thursday, November 19, 2009
Wednesday, November 18, 2009
scroll
Google Wave Scrollbars - I'm not a fan of them. Interesting idea, but they are way too laggy and don't work well on longer waves.
Tuesday, November 17, 2009
Monday, November 16, 2009
xmouse #2
Just got bitten by the CTRL+SHIFT+NUMLOCK on Linux:
oh my goodness, I just learned that you can move the mouse in X11 by pressing
CTRL + SHIFT + NUMLOCK
And then navigate with the arrowkeys. Press CTRL + SHIFT + NUMLOCK to get out of this mode.
previous blog entry
Sunday, November 15, 2009
creator plunderphonics
Here's an intermediate step along the way of my Music 507 project, which is to do a Plunderphonics of a song. I chose one of my favorite songs Creator, by Santigold. For this, I used Ableton Live and a lot of Follow Actions.
Some Pd ---> Max/MSP conversions (maybe with errors)
tabread4~ ---> play~, (also groove~, wave~ or similar things)
tabosc4~ ---> wave~ (probably)
tabwrite~ ---> record~
delread~ ---> tapin~
delwrite~ ---> tapout~
hip~ ---> see the HP filter thread (also biquad~ and filtercoeff~, and many others)
samphold~ ---> sah~ (works differently in Max, I prefer the Pd style)
wrap~ ---> don't remember
noisi~ ---> does not exist in Pd
graph ---> ?
From the cycling 74 forums
tabread4~ ---> play~, (also groove~, wave~ or similar things)
tabosc4~ ---> wave~ (probably)
tabwrite~ ---> record~
delread~ ---> tapin~
delwrite~ ---> tapout~
hip~ ---> see the HP filter thread (also biquad~ and filtercoeff~, and many others)
samphold~ ---> sah~ (works differently in Max, I prefer the Pd style)
wrap~ ---> don't remember
noisi~ ---> does not exist in Pd
graph ---> ?
From the cycling 74 forums
Saturday, November 14, 2009
Friday, November 13, 2009
defnd!
DEPARTMENT OF COMPUTER SCIENCE
MSc Oral Examination
CANDIDATE: Steven Ness
Date/Time: Thursday, 19 November 2009 (2:00pm)
Location: Engineering Office Wing Bldg. (EOW), Room 430
Supervisor: Dr. G. Tzanetakis
Title: ?Content-aware Visualizations of Audio Data in Diverse Contexts?
Thursday, November 12, 2009
python wsgi
Paul suggested I check out WSGI for web development under Python, if and when I switch from Rails:
WSGI
SQL Alchemy
Werkzeug
Selector
jinja
Wednesday, November 11, 2009
Monday, November 09, 2009
Sunday, November 08, 2009
Saturday, November 07, 2009
do you?
Do you ever make a web site or program and then spend hours just playing with it, pleased with your creation?
Oh yes, with The Orchive, I'm totally obsessed. Love. The. Orchive.
bain
DR. DAVID BAIN is a researcher at Global Research and Rescue . He has worked in marine mammal research and rescue since 1977. He received his Ph.D. in Biology from the University of California at Santa Cruz, where he studied killer whales at the north end of Vancouver Island under the late Ken Norris as a National Science Foundation Graduate Fellow. His research has been diverse, involving both captive and wild marine mammals. It has addressed behavior, communication, population dynamics, genetics, toxicology, social organization, physiology, ecology, health, and effects of human activities on marine mammals.
In C by Terry Riley - original recording - Part 1
Writing a Max patch to perform this is our next assignment in MUS507 here at UVIC.
Friday, November 06, 2009
orca
Killer Whales, 2nd edition -
The Natural History & Genealogy of Orcinus Orca in British Columbia & Washington State
deixis
What is deixis? - Deixis is reference by means of an expression whose interpretation is relative to the (usually) extralinguistic context of the utterance, such as
- who is speaking
- the time or place of speaking
- the gestures of the speaker, or
- the current location in the discourse.
firefox restore
Firefox is my web development platform, and I find that I often have to kill and restart it to test things, so I have the alias "kf" that kills my firefox.
alias kf='killall -9 firefox-bin'
The new update of firefox now gives me a dialog box asking to restore my session when I kill it, which wastes some time, and is almost never what I want to happen.
about:config to the rescue:
browser.sessionstore.resume_from_crash;false
Thursday, November 05, 2009
Wednesday, November 04, 2009
vision
Simple Line Detection
Sobel Edge Detection
The Sobel convolution mask gives us an approximation of the local image gradient.
Tuesday, November 03, 2009
computer vision
OpenCV (Open Source Computer Vision) is a library of programming functions for real time computer vision.
whales
Killer Whales, 2nd edition The Natural History & Genealogy of Orcinus Orca in British Columbia & Washington State
Monday, November 02, 2009
NEPTUNE
CANARIE has awarded $980,000 in new funding to support some exciting new approaches to data collection and analysis. Data collection will be enhanced by installation of a "mini-observatory" at a nearby secondary school. Data analysis will be augmented by two new software-enabled approaches.
Ocean Observatory Data Heads For Saskatchewan
Sunday, November 01, 2009
DEFEND
My M.Sc. defense is going to be on November 19th, my thesis is entitled:
Content-aware visualizations of audio data in diverse contexts
Wish me luck!
tournament
Trying to remember how to login to the Nethack Tournament this year. Need to ascend at least one character this year, to keep up my geek cred. After my Ph.D. I might try for the Grand Slam, but that would be a lot of Nethacking.
duchess says
Duchess Says - Main site
DuChESS SayS - My Space
Duchess Says - At wikipedia
Duchess Says is a fantastic band out of Montreal that I'm really digging right now.
This is yet another great band that I found through xlr8r tv, an awesome video podcast about music and music tech.
Saturday, October 31, 2009
neptune
CANARIE - has awarded $980,000 in new funding to support some exciting new approaches to data collection and analysis. Data collection will be enhanced by installation of a "mini-observatory" at a nearby secondary school. Data analysis will be augmented by two new software-enabled approaches.
Thursday, October 29, 2009
wrong idea
How I Learned to Stop Worrying and Love Web Development Again by Salar - Why we don?t support Internet Explorer
This is just not a good idea. Ignoring 70% of the people who use the web is not a good idea.
HTML5
What Does It All Mean?
HTML5 Tutorial - Getting Started
HTML Diamonds - Ruby library for making HTML
WebGL and O3D
listen
Whales are good listeners -
Whales are polite conversationalists, as they can spot rhythms in the ocean filled with the calls of marine animals, scientists claim.
The marine biologists at the Littoral Acoustic Demonstration Center have come up with a device that can spot these rhythms and identify individual animals.
With the help of this latest technique they have learnt that whales make a specific effort to keep their calls from overlapping.
They will present their study at a meeting of the Acoustical Society of America (ASA) in San Antonio.
Also, Natalia Sidorovskaia with her colleagues at the University of Louisiana at Lafayette have noted that whales change the intervals between these echolocating clicks in a way that seems to prevent cluttering the echoes from these calls.
?In other words, whales are polite listeners; they do not interrupt each other,? Sidorovskaia said. (ANI)
Wednesday, October 28, 2009
Tuesday, October 27, 2009
mystery cafe
At this cafe, you get what the person before you ordered. The next person gets what you ordered.
For the record, here are the rules of the Ogori cafe:
1) Let's treat the next person. What to treat them with? It's your choice.
2) Even if it's a group of friends or a family, please form a single-file line. Also, you can't buy twice in a row.
3) Please enjoy what you get, even if you hate it. (If you really, really hate it, let's quietly give it to another while saying, "It's my treat?")
4) Let's say "Thank You! (Gochihosama)" if you find the person with your Ogori cafe card.
5) We can't issue a receipt.
Tuesday, October 20, 2009
ofxMarsyas
OMFG, Paul Reimer (a student here at UVIC) just got Marsyas and MarSndPeek running on the iPhone. He is a coding machine.
Monday, October 19, 2009
pandora
The Song Decoders - Excellent article in the New York Times about Pandora
How Much Is Your Taste in Music Based on What Your Friends Like?
Thursday, October 15, 2009
Tuesday, October 13, 2009
html5 audio
J.A.I. or "Javascript Audio Interface"
// Create an array of the <audio> resources
var playlist = document.getElementById('jai').getElementsByTagName('audio');
// Beings playing the first audio file
playlist[0].play();
// Mutes the audio
playlist[0].volume=0;
// Returns the current volume of the resource
var volume = playlist[0].volume;
// Gets the length in seconds of the audio (not always 100% accurate)
var length = playlist[0].duration;
// Gets the current position of the track in seconds
var time = playlist[0].currentTime;
// Sets the current position of the track to 10 seconds
playlist[0].currentTime = 10;
// Pauses the audio at it's current position
playlist[0].pause();
// Gets the URL of the audio file
var filename = playlist[0].src;
audio player HTML5 style
Using audio and video in Firefox
HTML 5 Draft - Media elements
nsIDOMHTMLMediaElement
HTML5 Audio Soundboard
$("audio").removeAttr("controls").each(function(i, audioElement) {
var audio = $(this);
var that = this;
$("#doc").append($('<button>'+audio.attr("title")+'</button>')
.click(function() {
that.play();
));
});
Monday, October 12, 2009
Sunday, October 11, 2009
Saturday, October 10, 2009
Friday, October 09, 2009
Wednesday, October 07, 2009
Sunday, October 04, 2009
Friday, October 02, 2009
Wednesday, September 30, 2009
field
my tagline for my fields of study is "Music Information Retrieval, Distributed Cognition and Ambient Interfaces"
cool :)
chuck
ChucK - is a strongly-typed, strongly-timed, concurrent audio and multimedia programming language.
ChucK tutorial
Tuesday, September 29, 2009
Monday, September 28, 2009
dbl click
// sness - Wow, bizarre, in order to make the double click event work, mouseChildren has
// to be off and doubleClickEnabled has to be true
_well.mouseChildren = false;
_well.doubleClickEnabled = true;
quote
"Duct tape programmers are pragmatic. Zawinski popularized Richard Gabriel?s precept of Worse is Better. A 50%-good solution that people actually have solves more problems and survives longer than a 99% solution that nobody has because it?s in your lab where you?re endlessly polishing the damn thing. Shipping is a feature. A really important feature. Your product must have it."
From The Duct Tape Programmer
This is so true. Just get something done that works, get it into the hands of your users, and then iterate.
Sunday, September 27, 2009
Saturday, September 26, 2009
Friday, September 25, 2009
jwz
The Duct Tape Programmer
"Yeah," he says, "At the end of the day, ship the fucking thing! It"s great to rewrite your code and make it cleaner and by the third time it'll actually be pretty. But that's not the point" you're not here to write code; you"re here to ship products."
reverse!
GDB and Reverse Debugging - GDB version 7.0 (due September 2009) will be the first public release of gdb to support reverse debugging (the ability to make the program being debugged step and continue in reverse).
Wow. Is this for real?
issue tracking
Trac Installation Guide for 0.11
bugzilla
bugzilla in action at mozilla
Comparison of issue tracking systems
These are all great, but probably too heavyweight for issue tracking on The Orchive.
Wednesday, September 23, 2009
orchive 2.0
I just launched the new version of The Orchive this week. Check out this amazing section (It's about halfway through, so zoom all the way out and click on "wow.".).
Monday, September 21, 2009
neurons
New Math for Artificial Neurons - Floating-point processors in FPGAs make for artificial neurons quick enough to communicate with real ones
Saturday, September 19, 2009
orca
So cool, an online PDF version of the Northern Resident Killer Whales in British Columbia Photo-Identification Catalogue 2007.
Friday, September 18, 2009
c++ gotcha
COW for strings in C++:
For those who like their punchlines first: std::string is designed to allow copy-on-write. But once operator[] is called, that string is ruined for COW forevermore. The reason is that it has to guard against a future write at any time, because you may have stashed away the internal pointer that operator[] returns ? a feature that you surely know better than to use, but that costs you nevertheless.
facets
Some really cool work on Faceted Tag Clouds here at UVIC by Dr. Storey.
There is an online prototype that you can check out.
I want to apply some of the ideas from this to our prototype Play Tag Now! music browsing interface.
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