Tutorial - Recording Computer Playback on Linux
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SCIS Boardman Labs User Manual Version5
SCIS Common Use Labs in Boardman Hall USER MANUAL Note: The instructions in this manual assume students walking into the labs are first-time users of the labs and are complete novices in using the machines. Table of Contents Page I. Access to Boardman Hall SCIS Labs for Computer Science and New Media Students A. Services Provided 2 B. Gaining Access to Lab Rooms and Computers 3 II. SCIS Common Use Lab (Room 138 Boardman) A. Services Provided 3 B. Use of iMacs on Tables 4 C. Use of Large Table Monitor for Sharing Among Table Group 4 D. Use of Overhead Projector 5 E. Use of Laser Printer (8 ½ by 11” Prints) 6 F. Use of Large Format Plotter 7 G. Software Available on Computers in Room 138 7 H. Equipment Available for Checkout from Room 138 Lab Monitors 8 III. Combined Focus Ring and Stillwater Labs (Rooms 127 and 129 Boardman) A. Services Provided 8 B. Use of iMacs on Tables 9 C. Use of Cybertron PC for AI and VR D. Use of … E. Software Available on Computers in Rooms 127 and 129 F. Equipment Checkout Procedure G. Equipment Available for Checkout from Rooms 127 and 129 Lab Monitors IV. SCIS Student Lounge and Project Work Room (Room 137 Boardman) A. Services Provided B. Use of Large Screen by Students APPENDICES Appendix A. Laptop Computer Recommendations for Computer Science Students Appendix B. Laptop Computer Recommendations for New Media Students Appendix C. Convenient Web Resources for Development of Computer Code Note: On SCIS web site all of the above topics will link to anchors at the same topics below. -
Tworzenie Dokumentów, Prawo Autorskie
Zajęcia 7 - tworzenie dokumentów JANUSZ WRÓBEL Typy plików Tekstowe txt – najprostszy plik tekstowy np. z Notatnika doc, docx - dokumenty z WORDA lub WORDPADA odt – dokumenty z programu OPENOFFICE rtf – format tekstowy zawierający podstawowe formatowanie tekstu kompatybilny z wieloma edytorami tekstu Graficzne jpg – najpopularniejszy format plików graficznych png – format głównie wykorzystywany przez Internet gif – format graficzny umożliwiający przechowanie wielu obrazów tworzących np. animację Tiff – format kompresji bezstratnej Dźwiękowe Mp3 – najpopularniejszy, stratny zapis dźwięku Midi - standard dla przechowywania zapisu dźwięku zbliżonego do nutowego Wav – popularny standard dla Windowsa i internetu Wma – gównie pliki w Windowsie Wideo MPEG4 – najpopularniejszy standard kodowania umożliwiający rejestrowanie i przesyłanie na bieżąco wizji i fonii. MOV- kodowanie firmy Apple wymaga specjalnego odtwarzacza QuickTime Player Avi – format zapisu filmów zwykle przeznaczonych do dalszej obróbki WMV – format kompresji filmów firmy Microsoft FLV – format filmów wykorzystywany na stronach www Uruchamialne EXE – popularny dla Windowsa plik programu mogący zawierać różne zasoby np. okna, ikony, dźwięki BAT – program wykonywany przez komputer bez wpływu użytkownika na jego przebieg (tryb wsadowy) COM – dawniej popularny typ programów wykonywalnych w systemie DOS Skompresowane ZIP – format kompresji bezstratnej i archiwizacji na PC (Personal Computer) RAR – format kompresji bezstratnej i archiwizacji JPG, MPEG, MP3 – to -
Linux Sound Subsystem Documentation Release 4.13.0-Rc4+
Linux Sound Subsystem Documentation Release 4.13.0-rc4+ The kernel development community Sep 05, 2017 CONTENTS 1 ALSA Kernel API Documentation 1 1.1 The ALSA Driver API ............................................ 1 1.2 Writing an ALSA Driver ........................................... 89 2 Designs and Implementations 145 2.1 Standard ALSA Control Names ...................................... 145 2.2 ALSA PCM channel-mapping API ..................................... 147 2.3 ALSA Compress-Offload API ........................................ 149 2.4 ALSA PCM Timestamping ......................................... 152 2.5 ALSA Jack Controls ............................................. 155 2.6 Tracepoints in ALSA ............................................ 156 2.7 Proc Files of ALSA Drivers ......................................... 158 2.8 Notes on Power-Saving Mode ....................................... 161 2.9 Notes on Kernel OSS-Emulation ..................................... 161 2.10 OSS Sequencer Emulation on ALSA ................................... 165 3 ALSA SoC Layer 171 3.1 ALSA SoC Layer Overview ......................................... 171 3.2 ASoC Codec Class Driver ......................................... 172 3.3 ASoC Digital Audio Interface (DAI) .................................... 174 3.4 Dynamic Audio Power Management for Portable Devices ...................... 175 3.5 ASoC Platform Driver ............................................ 180 3.6 ASoC Machine Driver ............................................ 181 3.7 Audio Pops -
Audacity® Is Recording and Audio Editing Software That Is Free, Open Sourced, and Generally Easy to Use
How to Use Introduction Audacity® is recording and audio editing software that is free, open sourced, and generally easy to use. Audacity® can be used to record live audio, edit various sound files, convert from tapes and records to digital audio or CDs, and so much more! This software can be used for Windows, Mac OS X, GNU/Linux, and a variety of other operating systems. Audacity® User Interface This is a screenshot of Audacity®. The next section of this How-To guide will introduce you to this user interface. Copyright © 2008 Audacity® How- to 1 Audacity® User Interface: Toolbars The Audacity® Control Toolbar Envelope Tool Skip to Start Stop Button Button Select D r a w Record Tool Tool Button Zoom Multi- Tool Tool Pause Skip to End Timeshift Play Button Button Tool Button The Audacity® Edit Toolbar Zoom Zoom To Copy Cut Paste Undo Redo Out Selection Zoom Zoom To Trim Silence In Entire Project The Audacity® Meter & Mixer Toolbars Input Output Level Level Meter Meter Output Input Volume Volume Input Control Control Source Selector Copyright © 2008 Audacity® How- to 2 Importing Audio with Audacity® 1. Create a New Project This is an important step. Give your project a name & saving location prior to working in Audacity®. Select and choose a file name and location to save your project. *Note when you initially begin Audacity® only the “Save As” function will be available. 2. Check Preferences Click File > Preferences (Ctrl + P) Check to be sure the correct Playback & Recording Devices have been selected. Copyright © 2008 Audacity® How- to 3 Set the sample rate of your choice. -
The GNOME Census: Who Writes GNOME?
The GNOME Census: Who writes GNOME? Dave Neary & Vanessa David, Neary Consulting © Neary Consulting 2010: Some rights reserved Table of Contents Introduction.........................................................................................3 What is GNOME?.............................................................................3 Project governance...........................................................................3 Why survey GNOME?.......................................................................4 Scope and methodology...................................................................5 Tools and Observations on Data Quality..........................................7 Results and analysis...........................................................................10 GNOME Project size.......................................................................10 The Long Tail..................................................................................11 Effects of commercialisation..........................................................14 Who does the work?.......................................................................15 Who maintains GNOME?................................................................17 Conclusions........................................................................................22 References.........................................................................................24 Appendix 1: Modules included in survey...........................................25 2 Introduction What -
Features Ask Klaus!
FEATURES Ask Klaus! Klaus Knopper answers your Linux questions Thanks for reading this, Klaus; it really means a lot to me that you take time to help out the Linux community. Mark Mina If I’m not completely mistaken (having no such model for test- ing), the main challenge with this note- AskBy Klaus Knopper Klaus! book really seems to be the graphics Knoppix Install adapter, which is a hybrid Intel + ATI/ Hello, Klaus. I have been using your AMD RadeonHD 6550M. You will most OS version 6.4 as supplied on the likely need a new kernel (at least 2.6.38 DVD with the January 2011 Linux Maga- or 2.6.39) with the Radeon DRM module zine. I like it so much that I would like to and Xorg 1.10 with the xorg-video- install it on the hard drive on one of my radeon driver, which is currently in De- machines. I have looked through the bian/ unstable. This is quite distro-inde- files but cannot find a way to install it. pendent; the most recently released ones Can you please advise? I am not on the will be the best candidates. Internet but hope to be on in the next You may also succeed by switching off couple of months. Best Regards, John one of the graphics chipsets in the BIOS Stirling and explicitly configuring the other in Xorg. The Intel version may be a good A Knoppix harddisk install option candidate. For Knoppix, try to boot with: exists in the Preferences menu with the “0wn” (“zero work needed”) knoppix xmodule=intel utility. -
Command-Line Sound Editing Wednesday, December 7, 2016
21m.380 Music and Technology Recording Techniques & Audio Production Workshop: Command-line sound editing Wednesday, December 7, 2016 1 Student presentation (pa1) • 2 Subject evaluation 3 Group picture 4 Why edit sound on the command line? Figure 1. Graphical representation of sound • We are used to editing sound graphically. • But for many operations, we do not actually need to see the waveform! 4.1 Potential applications • • • • • • • • • • • • • • • • 1 of 11 21m.380 · Workshop: Command-line sound editing · Wed, 12/7/2016 4.2 Advantages • No visual belief system (what you hear is what you hear) • Faster (no need to load guis or waveforms) • Efficient batch-processing (applying editing sequence to multiple files) • Self-documenting (simply save an editing sequence to a script) • Imaginative (might give you different ideas of what’s possible) • Way cooler (let’s face it) © 4.3 Software packages On Debian-based gnu/Linux systems (e.g., Ubuntu), install any of the below packages via apt, e.g., sudo apt-get install mplayer. Program .deb package Function mplayer mplayer Play any media file Table 1. Command-line programs for sndfile-info sndfile-programs playing, converting, and editing me- Metadata retrieval dia files sndfile-convert sndfile-programs Bit depth conversion sndfile-resample samplerate-programs Resampling lame lame Mp3 encoder flac flac Flac encoder oggenc vorbis-tools Ogg Vorbis encoder ffmpeg ffmpeg Media conversion tool mencoder mencoder Media conversion tool sox sox Sound editor ecasound ecasound Sound editor 4.4 Real-world -
Pipewire: a Low-Level Multimedia Subsystem
Proceedings of the 18th Linux Audio Conference (LAC-20), SCRIME, Université de Bordeaux, France, November 25–27, 2020 PIPEWIRE: A LOW-LEVEL MULTIMEDIA SUBSYSTEM Wim Taymans ∗ Principal Software Engineer Red Hat, Spain [email protected] ABSTRACT 2. LINUX AUDIO LANDSCAPE PipeWire is a low-level multimedia library and daemon that facili- Audio support on Linux first appeared with the Open Sound System tates negotiation and low-latency transport of multimedia content be- (OSS) [6] and was until the 2.4 kernel the only audio API available tween applications, filters and devices. It is built using modern Linux on Linux. It was based around the standard Unix open/close/read- infrastructure and has both performance and security as its core de- /write/ioctl system calls. sign guidelines. The goal is to provide services such as JACK and OSS was replaced by the Advanced Linux Sound Architecture PulseAudio on top of this common infrastructure. PipeWire is media (ALSA) [7]from Linux 2.5. ALSA improved on the OSS API and agnostic and supports arbitrary compressed and uncompressed for- included a user space library that abstracted many of the hardware mats. A common audio infrastructure with backwards compatibility details. The ALSA user-space library also includes a plugin infras- that can support Pro Audio and Desktop Audio use cases can poten- tructure that can be used to create new custom devices and plugins. tially unify the currently fractured audio landscape on Linux desk- Unfortunately, the plugin system is quite static and requires editing tops and workstations and give users and developers a much better of configuration files. -
Audio on Linux: End of a Golden Age?
Audio on Linux: End of a Golden Age? Lars-Peter Clausen – Analog Devices Agenda ● History – Major transitions in software and hardware architecture ● Present – A look at the current situation – Are we in a golden age? ● Future – What major transitions lie ahead of us – How are we going to react to them? Interdependent vs. Modular Interdependent ● No clear boundaries defined between sub- modules ● Different sub-modules are aware of each others internals – Creates dependencies ● Parts can't be upgraded or modified independently of each other Modular ● Partitioning in sub-modules ● Clearly defined functions and interfaces ● Parts can be changed independently of each other – Drop-in replacements ● Constraint by the interface History Humble Beginnings PC Speaker (Beeper) ● Found in all IBM compatible PCs – Present in the first IBM PC 5150 (1981) ● Has only two states – Toggling a specific frequency generates a tone (PWM) ● Magnetic or Piezoelectric plate ● In Linux supported by the input framework Extending Features Soundblaster ● First widespread consumer sound card – Soundblaster 1.0 release in 1989 ● Primarily synthesizer based ● Mono PCM channel ● Became defacto standard for consumer sound cards – Many applications expected a sound blaster interface – Other manufacturers included a Soundblaster compatibility mode in their hardware Audio on Linux Open Sound System (OSS) Open Sound System (OSS) ● Used to be default audio subsystem in v2.4 ● /dev/dsp interface – To playback audio use write() – To capture audio use read() – Some IOCTLs for -
Minecraft Bedrock Launcher Documentation
Minecraft Bedrock Launcher Documentation MrARM & contributors Jul 27, 2021 Contents: 1 Getting started 1 1.1 AppImage................................................1 1.2 Flatpak..................................................1 1.3 macOS..................................................2 1.4 Source build...............................................2 1.5 Getting help...............................................2 2 Frequently Asked Questions 3 2.1 Do I need to own Minecraft: Pocket Edition to play?..........................3 2.2 Does it work on Windows 7 / 8?.....................................3 2.3 How does it work?............................................4 2.4 Where are my worlds?..........................................4 2.5 Can I use resource packs?........................................4 2.6 Why would I want to use this projects server, instead of the official one?................4 3 Troubleshooting 5 3.1 Extracting APKs.............................................6 3.2 AppImage................................................6 3.3 Controller.................................................6 3.4 Game launcher..............................................7 3.5 Qt launcher UI..............................................9 4 Building from sources 11 4.1 Introduction (read first).......................................... 11 4.2 Compiling MSA (for Xbox Live).................................... 12 4.3 Compiling the game launcher...................................... 13 4.4 Compiling the Qt UI.......................................... -
Audacity Manual.Pdf
A Free, Open Source, Cross-Platform Audio Editor Version 1.2.4 This is the online help for Audacity. It is meant to be a quick reference, not a complete manual. There is also a complete user's manual available online: http://audacity.sourceforge.net/help/documentation Table of Contents Table of Contents............................................................................................................................ 1 Toolbars .......................................................................................................................................... 3 Control Toolbar........................................................................................................................... 3 Editing Tools........................................................................................................................... 3 Audio Control Buttons............................................................................................................ 3 Mixer Toolbar ............................................................................................................................. 4 Edit Toolbar ................................................................................................................................4 Meter Toolbar ............................................................................................................................. 5 Menu Bar ....................................................................................................................................... -
Audacity: Record, Import & Export on Windows & Macintosh Platforms
IMC Innovate Make Create https://library.albany.edu/imc/ 518 442-3607 Audacity: record, import & export on Windows & Macintosh platforms Audacity is an open-source application to edit sound files and convert them to various formats. It is freely available to the public for download. The copyright law of the United States (Title 17, United States Code) governs the reproduction of copyrighted material. The person using this equipment and software is liable for any infringement. To install Audacity, download from https://www.audacityteam.org/. To work with many audio file types (i.e. OGG, ac3, and audio from video) download the FFmpeg plug-in [NOTE: versions previous to 2.3.2 also require the MP3 lame encoder to work with MP3 files]. After installing Audacity, open the application. From the top line menu select Edit > Preferences on Windows and Audacity > Preferences on Mac. Select Libraries from the menu on the left. Select Download for FFmpeg. Follow the instructions for adding this export/import Library. NOTES when working in Audacity If you are using multiple tracks, they should all be the same format. Use the [keyboard] space bar to play and stop the audio track If Pause or Play is selected you cannot execute commands. IMPORTING A SOUND FILE NOTES: Audio files from a CD must first be “ripped” or extracted using CD extraction software and then imported into Audacity. Audio may be extracted from video. From the top line menu select File > Import > Audio... Page 1 of 4 Make a copy of the file before editing to ensure that the original audio is untouched and that the file imported into Audacity will always be associated with the project.