[bootlin/training-materials updates] master: agenda: new online audio training (87e6c12b)

[Alexandre Belloni]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/87e6c12bbfcdcc4221cb21a77ffafbd1fe9d0085

>---------------------------------------------------------------

commit 87e6c12bbfcdcc4221cb21a77ffafbd1fe9d0085
Author: Alexandre Belloni <alexandre.belloni at bootlin.com>
Date:   Mon Jan 25 11:29:46 2021 +0100

    agenda: new online audio training
    
    Signed-off-by: Alexandre Belloni <alexandre.belloni at bootlin.com>


>---------------------------------------------------------------

87e6c12bbfcdcc4221cb21a77ffafbd1fe9d0085
 agenda/audio-online-agenda.tex | 269 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 269 insertions(+)

diff --git a/agenda/audio-online-agenda.tex b/agenda/audio-online-agenda.tex
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+\documentclass[a4paper,12pt,obeyspaces,spaces,hyphens]{article}
+
+\def \trainingtitle{Audio with embedded Linux}
+\def \trainingduration{On-line seminar, 3 sessions of 4 hours}
+\def \agendalanguage{english}
+\def \training{audio}
+
+\usepackage{agenda}
+
+\begin{document}
+
+\feshowtitle
+
+\feagendasummaryitem{Title}{
+  {\bf \trainingtitle{}}
+}
+\feagendasummaryitem{Training objectives}{
+  \begin{itemize}
+    \vspace{-0.5cm}
+  \item Be able to understand the basics of audio theory: analog
+    vs. digital, sampling theory, audio formats and audio hardware
+  \item Be able to understand the architecture of ASoC, the Linux
+    kernel subsystem for audio devices used in embedded systems, the
+    role of the different drivers and the Device Tree representation
+  \item Be able to write a Device Tree describing the topology of
+    audio hardware on an embedded Linux system
+  \item Be able to use complex audio routing capabilities, audio power
+    management capabilities, and complex audio components such as
+    auxiliary devices or amplifiers
+  \item Be able to configuration the ALSA user-space components and
+    ALSA audio widgets
+  \item Be able to understand the available user-space APIs for
+    playing and capturing audio, as well as audio servers such as
+    Pulseaudio, Pipewire or Jack.
+    \vspace{-0.5cm}
+  \end{itemize}
+}
+\feagendasummaryitem{Duration}{
+  {\bf Three} half days - 12 hours (4 hours per half day).
+}
+\onlinepedagogics{audio}
+\feagendasummaryitem{Trainer}{
+  Alexandre Belloni
+  \newline \url{https://bootlin.com/company/staff/alexandre-belloni/}
+}
+\feagendasummaryitem{Language}{
+  Oral lectures: English
+  \newline Materials: English.
+}
+\feagendasummaryitem{Audience}{
+  Companies and engineers that are developing embedded Linux systems
+  that include audio features.
+}
+\feagendasummaryitem{Prerequisites}{
+  \begin{itemize}
+    \prerequisitecommandline
+    \prerequisiteembeddedlinux
+    \prerequisiteenglish
+  \end{itemize}
+}
+\feagendasummaryitem{Required equipment}{
+  \begin{itemize}
+  \item Computer with the operating system of your choice, with the
+    Google Chrome or Chromium browser for videoconferencing
+  \item Webcam and microphone (preferably from an audio headset)
+  \item High speed access to the Internet
+  \end{itemize}
+}
+\certificate{}
+\disabilities{}
+
+\section{Half day 1}
+
+\feagendatwocolumn
+{Lecture - Digital Audio Representation}
+{
+  \begin{itemize}
+  \item What is sound?
+  \item Sampling theory
+  \item Sample size, sample rate
+  \item Audio formats: I2S, LJ, RJ, DSPA, DSPB
+  \item Slimbus
+  \item Soundwire
+  \item AC97
+  \item IEC 61937 (S/PDIF and HDMI)
+  \item PDM
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Introducing the basic notions used for representing audio waveforms.}
+}
+{Lecture - Hardware}
+{
+  \begin{itemize}
+  \item Signals
+  \item CPU Digital Audio Interfaces
+  \item CODEC Digital Audio Interfaces
+  \item Amplifiers
+  \item Clocks and clock master
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Presenting the hardware involved in the audio playback or capture.}
+}
+\\
+\feagendatwocolumn
+{Lecture - Linux kernel ASoC subsystem}
+{
+  \begin{itemize}
+  \item ASoC: the ALSA System-on-Chip subsystem in the Linux kernel
+  \item Linux kernel drivers for audio codecs
+  \item Linux kernel drivers for CPU audio interfaces
+  \item Linux kernel drivers for audio cards
+  \item Widgets
+  \item Describing audio cards with Device Tree: {\em
+      audio-graph-card}, {\em simple-audio-card}
+  \item Audio components
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Introducing the Linux kernel subsystem for audio on embedded systems.}
+}
+{Demo - Audio card examples}
+{
+  \begin{itemize}
+  \item Walk-through of audio codec drivers
+  \item Walk-through of CPU audio interface drivers
+  \item Walk-through of DT-only audio cards
+  \item Walk-through of card drivers
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Presenting existing sound card support.}
+}
+
+\section{Half day 2}
+
+\feagendatwocolumn
+{Lecture - Linux kernel helpers}
+{
+  \begin{itemize}
+  \item {\em regmap}, {\em regcache}
+  \item DMA handling
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Presenting the common helper APIs.}
+}
+{Lecture - Routing}
+{
+  \begin{itemize}
+  \item Routing audio
+  \item DAPM: Dynamic Audio Power Management
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Presenting the audio routes and power managment.}
+}
+\\
+
+\feagendatwocolumn
+{Lecture - More audio components}
+{
+  \begin{itemize}
+  \item Auxiliary devices, amplifiers, muxing
+  \item Jack detection
+  \item Asynchronous Sample Rate Converter
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Presenting more components of the sound cards.}
+}
+{Demo - Complex audio card examples}
+{
+  \begin{itemize}
+  \item Examples of DT-only complex audio cards
+  \item Examples of complex card drivers
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Presenting existing advanced sound card support.}
+}
+
+\section{Half day 3}
+
+\feagendatwocolumn
+{Lecture - Troubleshooting}
+{
+  \begin{itemize}
+  \item Debugging
+  \item {\em vizdapm}
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Presenting how to debug common issues.}
+}
+{Demo - Debugging}
+{
+  \begin{itemize}
+  \item Examples of common issues and their resolutions
+  \end{itemize}
+}
+\\
+
+\feagendatwocolumn
+{Lecture - Userspace, hardware configuration}
+{
+  \begin{itemize}
+  \item ALSA plugins
+  \item \code{asound.conf}
+  \item Sound card configuration
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Configuring the userspace audio paths and effects.}
+}
+{Demo - Card configuration examples}
+{
+  \begin{itemize}
+  \item Reordering channels
+  \item Splitting channels
+  \item Resampling
+  \item Mixing
+  \item LADSPA
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Exercising the ALSA plugins.}
+}
+\\
+
+\feagendatwocolumn
+{Lecture - Userspace, widget configuration}
+{
+  \begin{itemize}
+  \item {\em amixer}
+  \item {\em alsamixer}
+  \item Userspace API
+  \item Saving state: {\em alsactl}, \code{asound.state}
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Configuring the userspace audio paths and effects.}
+}
+{Demo - Configuring widgets}
+{
+  \begin{itemize}
+  \item {\em alsamixer} demonstration
+  \item \code{asound.state} examples
+  \item Custom application
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Configuring the sound card widgets.}
+}
+\\
+
+\feagendatwocolumn
+{Lecture - Userspace, playing and capturing audio}
+{
+  \begin{itemize}
+  \item Userspace API
+  \item {\em Pulseaudio}
+  \item {\em Pipewire}
+  \item {\em Jack}
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Playing and capturing audio samples.}
+}
+{Lecture - Advanced features}
+{
+  \begin{itemize}
+  \item Compressed streams
+  \item Topology
+  \item CODEC to CODEC link
+  \end{itemize}
+  \vspace{0.5em}
+  {\em Presenting some very advanced features.}
+}
+
+\end{document}
+