Audio

Use the information in this chapter to understand audio programming for this NVIDIA DRIVE® product.

APE modules instances details:

Module	Component	Orin Instances	Thor Instances
I2S	I2S interface	6x	8x
Mixer	Mixer	1x	1x
AMX	Audio multiplexer	4x	6x
ADX	Audio demultiplexer	4x	6x
SFC	Sample frequency converter	4x	4x
MVC	Master volume control	2x	2x
ADMA	Audio Direct Memory Access	1x (32 channels)	1x (64 channels)
ADMAIF	AHUB Direct Memory Access Interface	1x (20 TX and 20 RX channels)	1x (32 TX and 32 RX channels)
XBAR	Crossbar; routes audio samples through other modules	1x	1x

• Audio Virtualization Driver
  • Audio Stack
  • Advanced Linux Sound Architecture
  • ASoC Virtualization Driver Architecture
  • Guest Device Tree Configuration
• Audio Hub Configuration Controls
  • XBAR Controls
  • ADMAIF Controls
  • I2S Controls
  • AMX Controls
  • ADX Controls
  • MIXER Controls
  • SFC Controls
  • ASRC Controls
  • MVC Controls
  • Examples
  • A²B Interfaces
• Debug Info
• Audio Processing Engine
  • Tegra Audio Hub (AHUB)
  • AHUB Hardware
• Digital Audio Port
  • Required Equipment
  • Measurement
  • Controller and Port Name
  • Drive Strength Adjustment
  • Examples
  • Final Check