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Linux Journal: Linux Audio Development: A Report from Karlsruhe

Apr 02, 2003, 10:00 (2 Talkback[s])
(Other stories by Dave Phillips)

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"Historically, the basic Linux sound system has been built on an API known most recently as OSS/Free. As of the 2.5 development series, the Linux kernel now officially deprecates the aging OSS/Free API and has replaced it with the Advanced Linux Sound Architecture (ALSA). ALSA provides a backwards-compatible layer for accommodating older applications designed for OSS/Free. But, its advanced API includes more interesting features, such as support for sound hardware from consumer-level sound cards to professional-grade digital audio boards, a fully modularized driver design, safe operation in SMP and threaded programming environments, and a user-space library (libasound) to simplify applications programming.

"Conference participants included ALSA luminaries Jaroslav Kysela (founder and team leader), Takashi Iwai, Paul Davis, Frank van de Pol and Matthias Nagorni. Topic presentations included an in-depth analysis of the ALSA driver design, ALSA development in historical and technical perspective, an exposition of the JACK low-latency audio server/connector, details of the ALSA sequencer API and a demonstration of various ALSA-aware applications and utilities. As might be expected in this session, the level of discussion was quite technical at times, but all presentations were well-prepared and clearly delivered..."

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