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Intel® High Definition Audio Specification Document …
https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/high-definition-audio-energy-efficient-audio-buffering.pdf
4.6 Energy Efficient HD Audio (EEAudio) Mechanism . The Energy Efficient HD Audio (EEAudio) mechanism enables the SW to control the HD Audio Controller DMA engine effective buffer size extension for power saving versus latency consideration. When configured to use larger extended buffering, it allows the DMA engine to reduce associated
HD Audio Addendum to Microsoft Windows Logo Program …
https://download.microsoft.com/download/e/b/a/eba1050f-a31d-436b-9281-92cdfeae4b45/WLP-HDaudio.doc
Design and Implementation Notes: To keep stream latency small, a DMA engine in an HD Audio controller implementation must avoid adding a significant hardware-buffering delay to an audio data stream. Setting an upper limit on the buffering delay requires restricting the DMA engine's FIFO to a maximum size in bytes that varies according to the ...
linux/HD-Audio.txt at master · spotify/linux · GitHub
https://github.com/spotify/linux/blob/master/Documentation/sound/alsa/HD-Audio.txt
HD-AUDIO CONTROLLER ------------------- DMA-Position Problem ~~~~~~~~~~~~~~~~~~~~ The most common problem of the controller is the inaccurate DMA pointer reporting. The DMA pointer for playback and capture can be read in two ways, either via a LPIB register or via a position-buffer map. As default the driver tries to read from the io-mapped
OSDev.org • View topic - How to play sound Intel HD Audio?
https://forum.osdev.org/viewtopic.php?f=1&t=34525
(19) I read (into AL) CORB's control register using ESI+4C. I then OR it with 2 (to set the bit that will start the DMA engine), then AND it with 254 (to make sure bit-0 is zero, again to avoid interrupts), then write the result back to the same …
[PATCH 00/10] ASoC: SOF: Fixes for Intel HD-Audio DMA stopping
HD-Audio DMA. The new flow is only used if the firmware is sufficiently new to support SOF1.9.2 is the first release with the updated flow. changes are backwards compatible with old firmware releases. Likewise new firmware releases will work with old kernel. Series reviewed originally at:
Program Info: CSUDH DMA Audio Recording Option
DMA 431: Advanced Audio Recording Lab (1). Prerequisite: Previous or concurrent enrollment in DMA 430 and consent of instructor. Practical multi-track session work featuring increased access to studio facilities for individual and group recording projects using Pro Tools HD in conjunction with analog console and Digidesign Command 8 control ...
AVK Sytems
https://www.avksystems.com/dma.html
HD Audio rendering of an entire game is achieved within seconds of match completion. See section usage/workflow for more details on how DMA is deployed and used. Value Add for Broadcasters. Deferred programming content constitutes a significant proportion of both rights packages and broadcast air-time.
Intel® High Definition Audio (Intel® HD Audio) Controller ...
https://edc.intel.com/content/www/ru/ru/design/ipla/software-development-platforms/client/platforms/tiger-lake-mobile-y/intel-500-series-chipset-family-on-package-platform-controller-hub-datasheet-v/005/intel-high-definition-audio-intel-hd-audio-controller-capabilities/
Intel® High Definition Audio (Intel® HD Audio) Controller Capabilities The Intel ® HD Audio controller is the standard audio host controller widely adopted in the PC platform, with industrial standard Intel ® HD Audio driver software available for Microsoft* Windows* and many other Linux* based Operating Systems. Intel ® HD Audio controller capabilities are listed as …
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