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Audio Architecture - qnx.com
https://www.qnx.com/developers/docs/7.1/com.qnx.doc.neutrino.audio/topic/architecture.html
QNX Acoustics Management Platform (AMP) enables an audio pathway from capture to playback that is optimized for low-latency, high frame-rate, small frame size, real-time acoustic signal processing applications. Cards and devices
io-audio - QNX
https://www.qnx.com/developers/docs/7.1/com.qnx.doc.neutrino.utilities/topic/i/io-audio.html
See “ Understanding audio ducking” in the “Audio Concurrency Management” chapter in the QNX Neutrino Audio Developer's Guide. ms_frag_period: sw_mixer_ms (when the local playback device is a PCM Software Mixer device) The fragment size, in milliseconds, to use for audio hardware interfacing. ...
Audio - BlackBerry QNX
https://www.qnx.com/developers/docs/qnx_4.25_docs/qnx4/utils/a/audio.html
Audio. Audio device manager (QNX) Syntax: Audio [options] [driver [driver_options]]... Options:-A Use auto-initialize DMA.-D Debug mode.-F Run with priority inheritance driver [driver_options]... Specify the driver to use and the driver options to match the hardware configuration being used.
Audio Library - qnx.com
https://www.qnx.com/developers/docs/7.1/com.qnx.doc.neutrino.audio/topic/summary.html
Create a handle and open a connection to a specified audio interface; snd_pcm_open_name() Create a handle and open a connection to an audio interface specified by name; snd_pcm_open_preferred() Create a handle and open a connection to the preferred audio interface; snd_pcm_outputclass_event_t Information about the output port. …
Audio Architecture - BlackBerry QNX
https://www.qnx.com/developers/docs/6.4.0/neutrino/audio/architecture.html
Audio Architecture. This chapter includes: QNX Sound Architecture; Cards and devices; Control device; Mixer devices; Pulse Code Modulation (PCM) devices; QNX Sound Architecture. In order for an application to produce sound, the system must have: hardware in the form of a sound card or sound chip a device driver for the hardware
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
Mixer Architecture - QNX
https://www.qnx.com/developers/docs/7.1/com.qnx.doc.neutrino.audio/topic/mixer.html
You can usually build an audio mixer from a relatively small number of components. Each of these components performs a specific mixing function. A summary of these components or elements follows: Input A connection point where an external analog signal is brought into the mixer. Output A connection point where an analog signal is taken from the ...
QNX Multimedia Suite | Audio and Video Support for ...
https://blackberry.qnx.com/en/products/automotive/multimedia
Technology. Key features of the QNX Multimedia Suite: A sophisticated rendering engine for media playback from file or streamed content. A wide range of hardware-accelerated video and audio CODECs. Support for OpenMAX AL API. Recording and streaming of content for dispatch to a receiving endpoint. Device connectivity for Apple®, Android™ and ...
snd_afm_get_audio_mode() - qnx.com
https://www.qnx.com/developers/docs/7.0.0//////com.qnx.doc.neutrino.audio/topic/libs/snd_afm_get_audio_mode.html
Note: This function can only be used if you have QNX Acoustic Management Platform 3.0 installed. The snd_afm_get_audio_mode() function gets the currently applied audio mode that's used to tune acoustic processing parameters.
QNX Acoustics Management Platform | Automotive …
https://blackberry.qnx.com/en/products/automotive/qnx-acoustics-management-platform
QNX AMP offers unified management of all car acoustics, enabling automakers to reduce the cost, complexity and time-to-production of audio signal-processing systems. It also offers flexible options, allowing the use of only the functional modules as demanded by the needs of the system, and deploying them in native QNX, native Linux® or ...
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