상세정보

This book is your how-to guide for programming audio and sound for the Open Source Linux Operating System. Readers will learn how to utilize DSPs, sampled audio, MIDI, karaoke, streaming audio and more.
Linux is a major operating system that can not only do what every other operating system can do, but can also do a lot more. But because of its size and complexity it can be hard to learn how to do any particular task.
The Linux sound system is a major example of this: there is a large variety of tools and approaches for almost every aspect of sound. This ranges from audio codecs, to audio players, to audio support both within and outside of the Linux kernel.

What you'll learn:

How to do sampled audio

What is and how to handle Digital Signal Processing (DSP)

How to do MIDI

How to build Karaoke like application

How to handle streaming audio and more
Who is this book for: Experienced Linux users and programmers interested in doing multimedia with Linux and perhaps even game development.

Program audio and sound for Linux using this practical, how-to guide. You will learn how to use DSPs, sampled audio, MIDI, karaoke, streaming audio, and more. Linux Sound Programming takes you through the layers of complexity involved in programming the Linux sound system. You'll see the large variety of tools and approaches that apply to almost every aspect of sound. This ranges from audio codecs, to audio players, to audio support both within and outside of the Linux kernel.

What You'll Learn

Work with sampled audio

Handle Digital Signal Processing (DSP)

Gain knowledge of MIDI

Build a Karaoke-like application

Handle streaming audio

Who This Book Is For
Experienced Linux users and programmers interested in doing multimedia with Linux.

정보제공 :

Intro -- Contents at a Glance -- Contents -- About the Author -- About the Technical Reviewer -- Chapter 1: Basic Concepts of Sound -- Sampled Audio -- Sample Rate -- Sample Format -- Frames -- Pulse-Code Modulation -- Overrun and Underrun -- Latency -- Jitter -- Mixing -- Conclusion -- Chapter 2: User-Level Tools -- Players -- MPlayer -- VLC -- Totem -- Sound Tools -- sox -- FFmpeg/avconv -- GStreamer -- Audacity -- Conclusion -- Chapter 3: Sound Codecs and File Formats -- Overview -- PCM -- WAV -- MP3 -- Ogg Vorbis -- WMA -- Matroska -- Conclusion -- Chapter 4: Overview of Linux Sound Architecture -- Resources -- Components -- Device Drivers -- Sound Servers -- Complexities -- Conclusion -- Chapter 5: ALSA -- Resources -- User Space Tools -- alsamixer -- alsactl -- speaker-test -- aplay/arecord -- Identifying ALSA Cards -- Device Names -- ALSA Configuration Files -- alsa-info -- Applications Using ALSA -- MPlayer -- VLC -- TiMidity -- Programming ALSA -- Hardware Device Information -- PCM Device Information -- Configuration Space Information -- ALSA Initialization -- Capture Audio to a File -- Playback Audio from a File -- Using Interrupts -- Managing Latency -- Playback of Captured Sound -- Mixing Audio -- Mixing Using dmix -- Mixing Using PulseAudio -- Simple Mixer API: Volume Control -- Writing an ALSA Device Driver -- Conclusion -- Chapter 6: PulseAudio -- Resources -- Starting, Stopping, and Pausing PulseAudio -- User Space Tools -- paman -- pavumeter -- pavucontrol -- Gnome Control Center (Sound) -- parec/paplay/pacat -- pactl/pacmd -- Device Names -- Loopback Module -- PulseAudio and ALSA -- Programming with PulseAudio -- Simple API -- Play a File -- Record to a File -- Play from Source to Sink -- Asynchronous API -- List of Devices -- Monitoring Ongoing Changes: New Sources and Sinks -- Record a Stream -- Play a File -- Play a File Using I/O Callbacks -- Controlling Latency -- Play Microphone to Speaker -- Setting the Volume on Devices -- Listing Clients -- Listing Client Sources and Sinks -- Controlling the Volume of a Sink Client -- Conclusion -- Chapter 7: Jack -- Resources -- Starting Jack -- User Tools -- Applications Using Jack -- mplayer -- VLC -- TiMidity -- Jack-Supplied Programs -- Other Jack Programs -- Using a Different Sound Card -- How Can I Use Multiple Sound Cards with Jack? -- Mixing Audio -- Writing Audio Applications with Jack -- Compiling -- Port Information -- Copy Input to Output -- Delaying Audio -- Audacity with Jack -- Play a Sine Wave -- Saving Input to Disk -- Interacting with ALSA Devices -- Conclusion -- Chapter 8: Session Management -- Resources -- Session Management Issues -- jack_connect -- LASH -- Jack Sessions -- LADISH -- Jack Session API -- LADISH API -- Conclusion -- Chapter 9: Java Sound -- Resources -- Key Java Sound Classes -- Information About Devices -- Playing Audio from a File -- Recording Audio to a File -- Play Microphone to Speaker -- Where Does JavaSound Get Its Devices From? -- Conclusion.