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KLANG: A New Linux Audio System For The Kernel
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Originally posted by RealNC View PostThe OS X kernel has RT facilities. But you're missing the point: you don't need RT for this. The reason why RT is used in Linux for audio just shows the problems the audio stack has. RT is not needed, unless you're doing something wrong in the audio infrastructure.
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From experience I know that a task like this can not be taken lightly. I've been developing a lightweight 3D audio library for years and only recently it got in a state I find acceptable (but maybe I've got too high standards). It's called AeonWave and is available for Linux and Windows now: http://www.adalin.com
Although it is not Freeware, it is cheap and a royalty free (but limited) version of the library is available.
I am a fan of Free and Open Source software though (hence the many open source side projects and more to come).
This project was started out of frustration for the state of OpenAL-Sample years ago (and in some ways still today with OpenAL-Soft) and renders about 6 times faster than both. As time passed proper stereo mixing and effects supports has been added as well as support for audio-frames which can be used for sub-mixing and to move multiple sound emitters around simultaneously in a 3d environment.
This library however is not meant to be a replacement for ALSA, PulseAudio or OSS but instead it simply uses one of them as a backend. I really wouldn't want to think of this much code added the the kernel..
Personally I think the library fills a gap that both OS-X and Windows already have a solution for and the fact that it can render (3d) audio up to 7 times faster (and I see some room for more improvement) and can be setup for latencies as low as 2 msec means it is well thought out in my honest opinion.
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Originally posted by plonoma View PostSounds good architecture decisions except for the use of OSS.
A company tried to blackmail Linux with OSS API, that's why it is being replaced by ALSA.
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Originally posted by 89c51 View PostExplain whats wrong then.
89c51 was fired soon after.
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Originally posted by RealNC View PostNASA launches a rocket carrying a satellite. The rocket explodes 10 seconds after liftoff. 1 billion dollars wasted. Someone says: "It exploded, something went wrong!" 89c51 says: "Explain what's wrong then." Someone answers: "I've no idea!" 89c51 says: "See? Nothing's wrong. Everything is OK."
89c51 was fired soon after.
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Originally posted by RealNC View PostNASA launches a rocket carrying a satellite. The rocket explodes 10 seconds after liftoff. 1 billion dollars wasted. Someone says: "It exploded, something went wrong!" 89c51 says: "Explain what's wrong then." Someone answers: "I've no idea!" 89c51 says: "See? Nothing's wrong. Everything is OK."
89c51 was fired soon after.
Next time you say something is broken at least be able to tell why you believe this (the rocket because it exploded, a car because it crashed, etc.)
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"professional grade audio, that means lowest possible latency, latency compensation and bit exact precision at a very low CPU load. KLANG has been designed as a signal routing system, supporting seamless and transparent signal transport between all endpoints.
ALSA has worked fine for me for as long as I can remember. I don't want another square wheel.
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