Transferred from: http://www.ibm.com/developerworks/cn/linux/l-audio/Linux Audio Programming GuideAlthough the advantages of Linux are mainly embodied in the network services, but in fact, there is also a very rich media function, this article is based on multimedia applications of the most basic sound as an object, how to develop the actual audio applications un
1.2.1 Common formatsCommon audio formats are: CD format, WAVE (*. WAV), AIFF, AU, MP3, MIDI, WMA, RealAudio, VQF, Oggvorbis,AAC, APE.
CDThe audio quality of the CD format is relatively high. So to speak the audio format, CD is naturally the leading pioneer. In most playback software, the "hitOpen file Type ", you can see the *.CDA format, which is the CD track. S
SummaryThis article introduces the principle and basic implementation process of VoIP, and analyzes the composition of audio latency in the Ethernet environment. The experimental results show that the audio latency in the Ethernet environment is mainly composed of the buffer latency and API call latency, and the most important part is the API call latency. This paper proposes a method to reduce API call lat
IOS audio playback (4): Converting AudioFileSource: http://msching.github.io/blog/2014/07/19/audio-in-ios-4/preface
Next, the third articleAudioStreamFileLet's talk about this article.AudioFile. AndAudioStreamFileSameAudioFileYesAudioToolBoxIn the framework, it can also complete Step 1 described in the first article, read audio format information and perform fram
The previous article recorded the RGB/YUV video pixel data processing method, this article continues the previous article the content, records the PCM audio sampling data processing method. The location of the audio sample data in the video player's decoding process is shown.This paper introduces several PCM audio sampling data processing functions as follows:Sep
Bowen from Http://blog.csdn.net/droidphone Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1. Origin of Asoc
Asoc--alsa system on Chip is built on a standard ALSA drive layer to better support a software system for embedded processors and audio codec in mobile devices. Before ASOC, the kernel had some support for
In iOS development, the most important framework for audio and video is the avfoundation framework. Starting from this article, we will focus on avfoundation-based audio usage and processing. To learn how to use audio, you must first understand the audio session.
1. What is an aud
BasisLet's take a quick look at some basic audio knowledge.At present, we need to rely on audio files for audio playback on the computer, audio file generation process is the sound information sampling, quantization and encode the digital signal generated by the process, the sound that the human ear can hear, the lowes
First, digital audioAudio signal is a continuous change of the analog signal, but the computer can only process and record binary digital signal, from the natural sound source audio signal must undergo a certain transformation, become a digital audio signal, can be sent to the computer for further processing.The digital audio system realizes the reproduction of t
Tags: LSA generated audio span describe ATI channel Ann correctAudio ClockingAudio clock==============This text describes the audio clocking terms in ASOC and digital audio inGeneral. Note:audio clocking can be complex!This article describes the audio clock terms in ASOC and digital
Http://www.cnblogs.com/haibindev/archive/2011/12/29/2305712.htmlRTMP (Real time Messaging Protocol) is a streaming protocol specifically designed to transfer audio and video data, originally created by Macromedia and later owned by Adobe, a proprietary protocol used primarily to contact Flash Player and Rtmpserver, such as FMS, Red5, crtmpserver , etc. The RTMP protocol can be used for live streaming, on-demand applications, and FMLE (Flash Media live
Skills | optimization
Like Macromedia Flash has changed the way we experience the Web, Macromedia Flash Lite has the same effect on mobile devices. Sound effects are part of this rich experience. In fact, sound is an integral part of any mobile device, providing warnings, ringtones, audio prompts, and background music for a variety of entertainment uses. In this article, I'll introduce you to the Killersound tip-an innovative way to use sound in Flash
Audio this aspect is very profound, I certainly can not speak what advanced things, at most also just some basic knowledge, first, we want to introduce Android he provided the recording class, in fact, he has two, one is Mediarecorder, There is another one that we are going to use today, what is the difference between them? Audiorecord
I. Distinction
Mediarecorder and Audiorecord can record audio, the dif
Today see very good introduction audio development articles, reproducedOriginal address: http://msching.github.io/blog/2014/07/07/audio-in-ios/PrefaceMusic-related app development has been for some time, in the process of the app's player several changes I also therefore for iOS audio playback implementation has been a certain research. Write this series of blog
iOS audio playback can be divided into short audio playback (e.g., audio effects, etc.) and long audio playback (for example: music and other main audio). The former does not need to control the progress, cycle, etc., while the latter requires precise control. Playing these
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Before I developed the iPhone, Ray had little knowledge about sound formats. I know the differences between some "WAV" and "MP3" sound formats, but I certainly cannot tell you exactly what formats "AAC" and "caf" are, I also don't know what the best way to convert audio files on Mac
IPhoneDeveloped audio 101 (Part 1): file and Data Types
Translator: Xia laiyou
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Record: Question: How can I play a WAV, WMA, or MP3 audio in wince? What is the specific function? I use playsound (text ("\ Sounds \ bell.wav "), null, snd_sync | snd_nodefault); why not? I put \ Sounds \ bell.wav directly under the root directory of the project folder.
After I remove snd_nodefault, I only play a "beep" sound. It is estimated that it is a system sound. You can also use sndplaysound () to answer the same question. Why: if you can play
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Original article link: http://www.raywenderlich.com/204/
Those who have been familiar with IOS audio development know that core audio is the basis for digital audio processing on iOS and Mac. It provides applications.ProgramA set of software frameworks used to process audio. All IOS audio development interfaces are provided by cor
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