cmer

31 ms·

301.
by cmer 15y ago
Couldn't agree more with you! 192kHz is overkill as a "final" format. 16 bits is very limiting for music with lots of dynamics (ie: classical). Very quiet sounds sound quite bad at 16 bits, but since most pop music has about 6-12db of dynam
302.
by cmer 15y ago
Humans will hear the impact > 20kHz frequency has on the lower frequencies, not the 30kHz frequency itself. That's been proven a million times.
303.
by cmer 15y ago
We actually took those challenges in school :) Lots of fun if you're an audio nerd!
304.
by cmer 15y ago
This is a much more polite response than what I had in mind. Better this way I guess :)
305.
by cmer 15y ago
Let's make things super simple. Let's say you record 4 sine waves at a 192kHz sampling rate: 15kHz, 30kHz, 45kHz and 60kHz. All 4 frequencies will be captured and the 15kHz frequency will sound different to your hear because its harmonics.
306.
by cmer 15y ago
The only "good sounding" triangles you'll hear are those buried in a mix. Alone, it always sounds weird and "muted". EDIT: Listen to the triangle at the beginning of Rush's YYZ. It's an old recording, but it sounds significantly worse than
307.
by cmer 15y ago
I completely disagree with the article having heard the difference many times myself. You can't record at 192kHz and hope to keep the same quality by distributing the final mix in 44.1kHz. It just doesn't work that way.
308.
by cmer 15y ago
Stripping frequencies above 20kHz negates the effect on the lower frequencies since those lower frequencies are not "modified" by the higher ones. The human hear can actually hear the very high harmonics when they're combined with a lower f
309.
by cmer 15y ago
There's a lot of scientific-sounded content in this, but unfortunately most of it couldn't be further from the truth. I'm an ex-audio engineer and studied digital and analog audio engineering; this has been debated to death over the last 15
310.
by cmer 15y ago
This is the best article on Rails caching I have ever read. Highly recommended.
311.
by cmer 15y ago
Yup. AppSumo is reminding me more and more of Don Lapre. Even their non-make-a-million deals over-promise. Just give me the story straight, cut the bullshit. EDIT: Don Lapre was convicted of fraud. I am not implying that at all. I'm just
312.
by cmer 15y ago
EC2 is about 10-20 times more expensive than dedicated hosting. Even if reserved instances save us 22% over 3 years, it still doesn't even come close. Reserved instances also force me to commit to using a certain type of EC2 instance for 3
313.
by cmer 15y ago
I haven't researched this much, but my gut tells me Cassandra and/or Postgres. One of the main reasons why we escaped MySQL was that we were stuck with out schema. Adding an index or a column basically copies the table to a temporary table,
314.
by cmer 15y ago
This has been discussed so many times here, especially recently. Search HN you'll find tons of info. MongoDB is great at small scale. Basically, if everything fits in memory, it's awesome. If not, it slowly becomes a major pain in the butt,
315.
by cmer 15y ago
The problem with de-duplication is that it actually takes resources to do that. At the rate we're serving requests, everything has to go as fast as possible. Normalizing can actually slow things down. Our app is not quite the typical web ap
316.
by cmer 15y ago
It's mostly meta data and hashes of stuff. Uncompressed. Most of it in MongoDB, which is probably one of the worst technical decisions we made, for all the reasons that have been discussed at length.
317.
by cmer 15y ago
I was surprised at how small their database is! We (Defensio) store about 300gb of data, and most if it is purged after 60 days. We're quite far from being 274th largest website in the world as well, I assume. It's just very interesting to
318.
by cmer 15y ago
It doesn't seem to load on my iPad. Works in Chrome, however.
319.
by cmer 15y ago
You might also want to check out some benchmarks I ran a few weeks ago. It compares many types of EC2 instances: http://blog.carlmercier.com/2012/01/05/ec2-is-basically-one-...
320.
by cmer 15y ago
FYI, Context.io does something similar to this. I know a few YC companies use them.
321.
by cmer 15y ago
There's no way in hell it costs $300k per month to run Reddit!
322.
by cmer 15y ago
Ruby-toolbox.com is a great website to find gems. Many of these gems are probably great to learn from as well. Using gems might be slightly more advanced that where you are now but this website should come handy shortly.
323.
by cmer 15y ago
You might want to know that www.hopper.com is very well funded and launching soon. I think you should rename your project... http://www.crunchbase.com/company/hopper
324.
by cmer 15y ago
A successful business doesn't mean they're not a startup anymore. Dropbox is hugely successful, but definitely still a startup and its infancy. Github will remain a startup until they can make a dent in the big boys' bottom line, for exampl
325.
by cmer 15y ago
Couldn't disagree more. They're a successful startup, but definitely still a startup.
326.
by cmer 15y ago
It's pretty unusual to be acquired by another startup. It's generally the culture clash, hierarchy and bureaucracy that make acquisition suck for the acquiree. None of that happens when a startup acquires you.
327.
by cmer 15y ago
Thanks Jason. That's actually my fallback idea, but isn't that very slow for the user since it reloads the Facebook container every time?
328.
by cmer 15y ago
I had trouble doing just this, mainly because of how IE handles cookies on 304. I used this Gem for a Rails app (~1 year ago): https://rubygems.org/gems/rack-p3p .
329.
by cmer 15y ago
I think pushState might be the solution indeed. I was hoping for something a bit simpler. Thanks for the help! For the record, this screencast helped me: http://railscasts.com/episodes/246-ajax-history-state
330.
by cmer 15y ago
History.js looks promising. I'll definitely dig deeper. Using regular A tags does not work, however, hence my question. I decided not to support IE7 since this is a brand new app. It will be IE8+. I had to deal with the P3P issue in the pas

More ›