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QNX Acoustics Management Platform | Automotive Acoustic ...
https://blackberry.qnx.com/en/products/automotive/qnx-acoustics-management-platform#:~:text=QNX%20AMP%20uses%20a%20low-latency%20audio%20architecture%20that,processors%E2%80%93with%20time%20resolution%20as%20low%20as%20one%20millisecond.
Audio Architecture - QNX
https://www.qnx.com/developers/docs/6.4.0/neutrino/audio/architecture.html
The QNX Sound Architecture supports a variety of data formats. The <asound.h> header file defines two sets of constants for the data formats. The two sets are related (and easily converted between) but serve different purposes: SND_PCM_SFMT_* A single …
Audio Architecture - qnx.com
https://www.qnx.com/developers/docs/7.1/com.qnx.doc.neutrino.audio/topic/architecture.html
Audio Architecture This chapter includes information about QNX Sound Architecture (QSA), sounds cards and devices, sound card control devices, mixers, and pulse code modulation (PCM). QNX Sound Architecture In order for an application to produce sound, the system must include several components. QSA with QNX Acoustics Management Platform
QNX Sound Architecture
https://www.qnx.com/developers/docs/7.1/com.qnx.doc.neutrino.audio/topic/architecture_QSA.html
the QNX Sound Architecture (QSA). QSA has a rich heritage and owes a large part of its design to version 0.5.2 of the Advanced Linux Sound Architecture (ALSA), but as both systems continued to develop and expand, direct compatibility between the two was lost. QSA also provides audio
PCM thread priorities - qnx.com
https://www.qnx.com/developers/docs/7.0.0//////com.qnx.doc.neutrino.audio/topic/architecture_PCMthreadpriorities.html
The PCM software mixer and PCM input splitter threads run at a priority of either +1 from the highest audio client application priority or data_thread_prio, whichever is higher.To make sure that the threads closest to the hardware have the highest priority, the client application priorities should never be more than -2 from intr_thread_priority.
About This Guide - RTOS, Hypervisor | BlackBerry QNX
https://www.qnx.com/developers/docs/6.4.0/neutrino/audio/about.html
The key components of the QNX Audio driver architecture include: io-audio Audio system manager. deva-ctrl-*.so drivers Audio drivers. For example, the audio driver for the Ensoniq Audio PCI cards is deva-ctrl-audiopci.so . For more information, see the entries for the deva-* audio drivers in the QNX Neutrino Utilities Reference . libasound.so
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