Capturing Audio with Java Sound API This Tech Tip reprinted with permission by java.sun.com The Java Sound API has been a part of the standard libraries of the Java 2 Platform since the 1.3 release. Found in the javax.sound.sampled package, the Java Sound API provides support for playing and capturing audio. In addition, the library offers a software-based audio mixer and MIDI (Musical Instrument Digital Interface) device access. In this tip, you'll learn how to capture audio through the Java Sound API and play it back. The javax.sound.sampled package consists of eight interfaces, twelve top-level classes, twelve inner classes, and two exceptions. Let's examine recording first. Describe the audio format in which you want to record the data. The first constructor lets you explicitly set the audio format encoding, while the latter uses a default. After you describe the audio format, you need to get a DataLine. If the TargetDataLine is unavailable, a LineUnavailableException is thrown. Now let's examine playing audio.
Cppcheck - A tool for static C/C++ code analysis JNI Functions JNI Functions Chapter 4 This chapter serves as the reference section for the JNI functions. Note the use of the term “must” to describe restrictions on JNI programmers. A portion of this chapter is adapted from Netscape’s JRI documentation. The reference material groups functions by their usage. Interface Function Table Each function is accessible at a fixed offset through the JNIEnv argument. typedef const struct JNINativeInterface *JNIEnv; The VM initializes the function table, as shown by Code Example 4-1. Note that the function table can be shared among all JNI interface pointers. Code Example 4-1 Version Information GetVersion jint GetVersion(JNIEnv *env); Returns the version of the native method interface. Index 4 in the JNIEnv interface function table. env: the JNI interface pointer. Returns the major version number in the higher 16 bits and the minor version number in the lower 16 bits. In JDK/JRE 1.1, GetVersion() returns 0x00010001. In JDK/JRE 1.2, GetVersion() returns 0x00010002. Constants
WordPress Trackback Tutorial When used properly, trackbacks and pingbacks are an excellent way to build links and traffic to your blog, as well as building relationships with other bloggers. What Is Trackback? In layman’s terms, trackback is a way to notify a website when you publish an entry that references it. When you send it a trackback, a link with a short excerpt of your entry will appear on the referenced website. How To Locate The Trackback Link When you want to trackback, you will need to use a special link provided on the blog you want to reference. Most trackback links appear just after the blog post content and before the comments. Sometimes the link will appear as a plain text link: Other times it will be a hyperlink: If the trackback URL is hyperlinked, you’ll need to right click on it and select “Copy link location…” (or your browser’s equivalent), otherwise, you can highlight and copy the link. If you plan to reference more than one blog entry, each trackback URL will need to be copied individually.
NOP slide In computer security, a NOP slide, NOP sled or NOP ramp is a sequence of NOP (no-operation) instructions meant to "slide" the CPU's instruction execution flow to its final, desired, destination whenever the program branches to a memory address anywhere on the sled. While a NOP slide will function if it consists of a list of canonical NOP instructions, the presence of such code is suspicious and easy to automatically detect. For this reason, practical NOP slides are often composed of non-canonical NOP instructions (such as moving a register to itself or adding zero, for example 0x0c0c0c0c), or of instructions that affect program state only inconsequentially, which makes them much more difficult to identify. The entropy of a NOP sled is dependent upon the constraints placed on it. See also Heap spraying, a technique which is complementary to the use of NOP slides Sources
Java Sound API: Java Sound Demo Oracle Technology Network > Java Software Downloads View All Downloads Top Downloads New Downloads What's New Java in the Cloud: Rapidly develop and deploy Java business applications in the cloud. Essential Links Developer Spotlight Java EE—the Most Lightweight Enterprise Framework? Blogs Technologies Contact Us About Oracle Cloud Events Top Actions News Key Topics Oracle Integrated Cloud Applications & Platform Services
TrackBack Manual Table of Contents Movable Type's TrackBack system allows peer-to-peer communication and conversations between weblogs. Imagine that you write about a movie you just saw in an entry on your Movable Type-powered weblog. Another MT weblogger reads your entry, and wants to write an entry referencing your original post. Using TrackBack, the other weblogger can automatically send a ping to your weblog, indicating that he has written an entry referencing your original post. On your site, you can automatically list all sites that have referenced a particular post, allowing visitors to your site to read the response on the other user's weblog. You can use TrackBack for more than just communication on particular entries, however. For example, if you run a site about Perl, you might want to provide a repository of links to Perl articles on other weblogs. These are just examples of TrackBack usage. Setting up TrackBack Create a TrackBack Listing template. Using TrackBack TrackBack Ping Format
JJack - Java framework for the JACK Audio Connection Kit JJack is a JACK audio driver for the Java Sound API and a framework for the Java programming language that allows Java applications to use the JACK Audio Connection Kit. Copyright © Jens Gulden. Licensed under the GNU Lesser General Public License (LGPL). This software comes with NO WARRANTY. Features JJack is a JACK audio driver for the Java Sound API and a framework for the Java programming language that allows Java applications to use the JACK Audio Connection Kit. Audio processor clients can be designed to: create their own sounds (as a synthesizer or sample-player) change the sound-output of other clients (e.g. as an effects-device) analyse the audio streams generated by other clients (e.g. display the wave form) Running JJack Developing JJack clients The document Developing JJack Clients describes the basic steps to create new JJack clients. For more details on the JJack API, refer to the Javadoc API documentation. JJack uses the Java Native Interface (JNI) to access the JACK daemon. with
Особенности поведения нового TCP/IP стека Windows / Блог компании Positive Technologies Начиная с Windows Vista, компания Microsoft в своих операционных системах перешла на новый сетевой стек — Next Generation TCP/IP Stack. Стек включает в себя множество различных плюшек: Windows Filtering Platform, масштабируемое TCP-окно и прочие вкусности, однако речь пойдет совсем не о них, а об одной конкретной особенности поведения нового сетевого стека. Всякий уважающий себя сетевой сканер должен уметь определять ОС сканируемого узла, при этом чем больше параметров используется, тем более точный ожидается результат. Мы в Positive Technologies тоже занимаемся сбором метрик и определением версии ОС, поэтому хотелось бы рассказать о недавно обнаруженной мною метрике, позволяющей идентифицировать Windows-системы с новым стеком. Рисунок 1 — Структура ответа на запрос ICMP Timestamp Рисунок 2 — Нормальное поведение меток времени Однако на деле наблюдалась картина, изображенная на рисунке 3 (в более высоком временном разрешении). Рисунок 3 — Поведение меток времени в крупном масштабе
Trackbacks Trackbacks are a way to notify legacy blog systems that you’ve linked to them. If you link other WordPress blogs they’ll be notified automatically using pingbacks, no other action necessary. Think of trackbacks as the equivalent of acknowledgements and references at the end of an academic paper or chapter in a text book. To send a trackback, add the trackback URI from the other blog post to the Send Trackbacks module in your blog post before you publish it. How do I send a Trackback Go to the post on the other person’s blog and look for the ‘Trackback URI’ or similar. Once you have that link you need to copy the URL of the link. In Firefox, Right-click on the link and Copy Link Location. In Internet Explorer, Right-click on the link and Copy Shortcut. Back on your blog, scroll down from the editor to the Trackbacks module and paste the URL into that box. Publish your post and the trackback will be sent. Help us improve: We're always looking to improve our documentation.
x86 Assembly for Userland Applications: A Hands-On Approach This document is an introduction to creating programs for microprocessors of the x86 architecture family - in particular 32-bit code. The reader is expected to be familiar with programming in C/C++ (or similar languages such as Java at least) and the essential API of the operating system they are using. Some mathematical knowledge up to highschool/university level is essential for understanding a lot of things aswell. Assembly (short ASM) is the lowest level programming possible - if you are a programmer and you want to get as close to the hardware as you can get then this is the place you want to be. Before your microprocessor can actually run the program you have written in assembly you will have to run it through a program which translates all the mnemonics and arguments to numerical machine code. This is a very important question and subject to a lot of discussion. So, what are we dealing with here? Registers hold minimal amounts of data and are extremely fast. and a set of digits