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Comment Re:Supernovas (Score 4, Insightful) 442

"much harder to refute" how about no

- Neutrinos through Interstellar medium vs. neutrinos through "planet earth" (almost the same thing to neutrinos, sure, still, almost)
- Neutrino interactions with interstellar medium
- Neutrino oscillations
- Neutrino generation process in a supernova event How do we know the level of neutrino generation didn't begin to raise 4 years before it went supernova? Far fetched yes, impossible, no.

Comment Re:Why? (Score 1) 488

Resampling is a rather more complex operation than you might think

Well, I actually studied signal processing at university, so I have an idea of what it takes to resample a sound. (I actually did it with images once, but it wasn't very fast - processing a 2D signal is very complicated).

For sounds it's easier since you can have very good and still very fast methods. PA may be picking between perfect-slow and very fast-bad (And no, if I can guess what the 'trivial' method does, I wouldn't recommend it)

But I guess some programs already resample to 48000 internally, like mplayer (and maybe they can do it inside the MP3 decoding process, simplifying it considerably)

You can't rely on SIMD instructions always being available

Nowadays? Yes, you can. The machine I bought in 2002 (Athlon XP) has SIMD instructions. You can pretty much count on any machine today having SSE

Unless you're using a machine older than that in which case PA is the smallest of your problems.

Comment Re:Why? (Score 1) 488

Or you can make the audio card run in the sampling rate of the audio file...

And resampling still does not justify the CPU usage (unless who did the resampling algorithm used a naive algorithm, which may be very well possible), especially with SIMD instructions.

Remember what the % CPU usage of winmodems was (with significantly worse processors)? And that's way more difficult than resampling a sound file

No VDPAU here, for an SD video mplayer uses ~10%CPU

I'll not reinstall PA here, but I've seen it use more than 10% cpu on a number of occasions (besides all the other problems)

I confess I tried to use PA. When using Ubuntu 9.04 PA lasted 1h on my machine, for 11.04 it clearly improved, it lasted almost a week before I uninstalled it.

Comment Re:Why? (Score 1) 488

No one in their right mind would ship Pulseaudio (amongst other things)

Right, nobody in their right mind would do that.

Except that everybody is doing it, and it works just fine. But the dinousars who got an opinion about pulsesaudio several years ago and don't know that these days pulseaudio works fine and provides features that nobody else does will never change their mind.

No, It doesn't work "just fine"
No, my opinion is not based on an older version of PA. PA is bad NOW, before it was even worse

Except that everybody is doing it, and it works just fine.

Maybe that's why there are several discussions about removing/disabling PA from Ubuntu (and others)

provides features that nobody else does

Like what? Using more CPU for audio than for playing a video? (yes, I did this test)
Increased delay from 'start playing' to actually playing (try it with mplayer)

So yeah, I guess I'm a dinossaur for wanting my SW to work without BS, without hogging my CPU and failing to work properly half of the time (again, newest version). Yeah, sound mixing, per app volume, makes me wonder when was the last time I needed that (especially with most apps having their own volume control)

Comment Re:I've seen a lot of dumb things on Slashdot ... (Score 1) 107

Great points!

I think you nailed it, "rapid prototyping is useful when you only need to make one of something, and you need it right now"

    One thing I've heard about 3D printed things is that things made with it are very brittle, still, I know it's used for implants, I think they do a prototype then make it into a mold and cast something with other materials.

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