PulseAudio In The Embedded World Arun Raghavan Collabora Multimedia - - PowerPoint PPT Presentation

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Sep 17, 2023 853 likes •1.16k views

PulseAudio In The Embedded World Arun Raghavan Collabora Multimedia PulseAudio what and why? ALSA is a low-level API Need something more app-friendly More features PulseAudio Sound server Simple API Async API Per-app volumes Flat

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PulseAudio In The Embedded World Arun Raghavan Collabora Multimedia

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PulseAudio – what and why?

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ALSA is a low-level API

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Need something more app-friendly

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More features

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… PulseAudio

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Sound server

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Simple API Async API

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Per-app volumes Flat volumes

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Move streams while playing Metadata-based “intelligence”

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Broad overview …

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So who's using it?

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Nokia (N900) Palm (Pre) Intel (MeeGo)

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Why are they using it?

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Timer-based scheduling

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Image by Lennart Poettering

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Latency control

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Dynamic routing

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Modular == extensible

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Active upstream

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Where next?

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Policy/use-case management

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Filters

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Compressed formats

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CPU and power optimisation

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???

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Profit!

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