Linux sound programming pdf

Linux Sound Programming

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Linux Sound Programming

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A wireless communication system consolidated with real-time video transmission and half duplex voice communication features is implemented in this project. The system disseminates live video with synchronized audio both via wired and wireless means. LAN, Wi-Fi and GSM network are the modes of communication employed in transmission of video and audio data. Video decoding, processing and altogether transcoding the captured video for transmission is executed by Raspberry Pi. Pi camera is incorporated with the Raspberry Pi to serve the purpose of capturing video and still images. The audio transmission system is designed utilizing the module SA828. Security is ensured by automatically generated random and undisclosed IP address. The system is drafted ensuring portability, ease of operation, reliability and cost optimization. Some specific applications of this project include remote monitoring and military tactical surveillance operations Key-Words: Wireless, Wi-Fi, GSM, Raspberry Pi, SA.

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— The previous research has developed Virtual Classbox design that uses multimedia conference technology to provide digital learning service [2]. Our recent research add recording capabilities in parallel with ongoing streaming and unified interface for video stream and presentation slides. Furthermore, we also improve user interface for better navigation and add another communication channel via chat message. Because it’s built based on web technologies, this system will be easier to implemented in various places.

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Linux Sound Programming

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Table of contents (33 chapters)

Front Matter

Basic Concepts of Sound

User-Level Tools

Sound Codecs and File Formats

Overview of Linux Sound Architecture

ALSA

PulseAudio

Jack

Session Management

Java Sound

GStreamer

libao

FFmpeg/Libav

OpenMAX IL

LADSPA

Displaying Video with Overlays Using Gtk and FFmpeg

MIDI

User-Level Tools for MIDI

MIDI Java Sound

MIDI ALSA

About this book

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.

• Work with sampled audio
• Handle Digital Signal Processing (DSP)
• Gain knowledge of MIDI
• Build a Karaoke-like application
• Handle streaming audio

Experienced Linux users and programmers interested in doing multimedia with Linux.

Keywords

• Linux
• sound
• programming
• using
• music
• media
• multimedia
• av
• audio
• software

Authors and Affiliations

Oakleigh, Australia

About the author

Jan Newmarch is Head of ICT (Higher Education) at Box Hill Institute, Adjunct Professor at Canberra University and Adjunct Lecturer in the School of Information Technology, Computing and Mathematics at Charles Sturt University. He is interested in more aspects of computing than he has time to pursue, but the major thrust over the last few years has developed from user interfaces under Unix into Java, the Web and now into general distributed systems. Jan has developed a number of publicly available software systems in these areas. Right now, he is looking at sound for Linux systems and programming the Raspberry Pi’s GPU.

Bibliographic Information

• Book Title : Linux Sound Programming
• Authors : Jan Newmarch
• DOI : https://doi.org/10.1007/978-1-4842-2496-0
• Publisher : Apress Berkeley, CA
• eBook Packages : Professional and Applied Computing , Professional and Applied Computing (R0) , Apress Access Books
• Copyright Information : Jan Newmarch 2017
• License : CC BY
• Softcover ISBN : 978-1-4842-2495-3 Published: 30 January 2017
• eBook ISBN : 978-1-4842-2496-0 Published: 20 January 2017
• Edition Number : 1
• Number of Pages : XXIII, 608
• Number of Illustrations : 9 b/w illustrations, 54 illustrations in colour
• Topics : Programming Techniques , Open Source , Multimedia Information Systems

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Newmarch Jan. Linux Sound Programming

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.

Work with sampled audio
Handle Digital Signal Processing (DSP)
Gain knowledge of MIDI
Build a Karaoke-like application
Handle streaming audio

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Programming and using Linux sound systems

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Programming and using Linux sound systems

Publication date 2016-12-29 Usage Attribution-Noncommercial-No Derivative Works 3.0 Topics audio linux sound programming synthesis dsp Collection opensource_media Language English

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. This is reinforced by its development model: anyone can develop new components, and indeed Linux relies on a huge army of paid and unpaid volunteers to do just that. But that can lead to confusion: if two methods are developed for one task, which one should be chosen? or more subtly, what are the distinguishing features of one solution that make it more appropriate for your problem?

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.

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