webex audio

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FFmpeg Base Library (ii) audio format

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

IOS audio playback (4): Converting AudioFile

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

Getting Started with AV data processing: PCM Audio sampling data processing

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

Linux Audio Driver ASOC driver Architecture __linux

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

Audio playback and recording of iOS development

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

Audio 101 for iPhone Development (Part 1): file and Data Types

Http://article.ityran.com/archives/253 This translation is produced by tairan translation team. Please indicate the source for reprinting and inform tairan !! Translation 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

IPhone audio 101 (Part 1): file and Data Types

IPhoneDeveloped audio 101 (Part 1): file and Data Types Translator: Xia laiyou Disclaimer (read only !) : The original translations of all tutorials provided by this blog are from the Internet and are only for learning and communication purposes. Do not conduct commercial communications. At the same time, do not remove this statement when reprinting. In the event of any dispute, it has nothing to do with the owner of this blog and the person

IPhone audio 101 (Part 1): file and Data Types

Disclaimer (read only !) : The original translations of all tutorials provided by this blog are from the Internet and are only for learning and communication purposes. Do not conduct commercial communications. At the same time, do not remove this statement when reprinting. In the event of any dispute, it has nothing to do with the owner of this blog and the person who published the translation. Thank you for your cooperation! Original article link: http://www.raywenderlich.com/204/

Linux Audio Driver Brief

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

Linux Audio alsa-uda134x driver Analysis II (clock)

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

C + + implements RTMP protocol to send H. Encode and AAC encoded audio and video

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

Killersound Tip: Optimize digital audio for Flash Lite

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

Android audio processing through Audiorecord to save PCM files for recording, playback, stop, delete function _android

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

Coreaudio for iOS audio Development

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

Audio/Video Encoding format Summary

I. Audio Codec format* MPEG audio layer 1/2* MPEG audio Layer 3 (mp3)* MPEG2 AAC* MPEG4 AAC* Windows Media audeo V1/v2/7/8/9* RealAudio cook/sipro (Real Media Series)* RealAudio AAc/aacplus (Real Media Series)* Qdesign music 2 (apple series)It is a qdesign company developed for high fidelity and high compression ratio encoding method, similar to MP3, but more adv

WAV audio files

WAV audio files Chess Boy 1048272975 WAV is a file format for saving audio information that is widely used in Windows and its applications, and today the mainstream audio player supports the playback of WAV audio files. 1. WAV Audio Format WAV is the standard Windows file f

Audio knowledge Summary

necessary theory should be a bit more! Let's talk about the audio preliminary. Audio preliminary (1) Audio: audio in English. You may see the audio output or input port on the video recorder or vcd backplane. In this way, we Audio

Android multimedia-MediaPlayer wake-up lock and audio focus

MediaPlayer wake-up lockGenerally, MediaPlayer is used to play audio streams. We recommend that you use a Service to carry MediaPlayer instead of directly using it in the Activity. However, in the Android system's power consumption design, to save battery consumption, if the device is in sleep state, the system will try to reduce or disable some features that are not required by the device, including the CPU and Wifi hardware. Then, if it is an applic

Android-manage audio focus

This article translated from: http://developer.android.com/training/managing-audio/audio-focus.html It is vital to consider how to interact with multiple potential audio playback programs. To avoid simultaneous playback of each music player, Android uses audio focus to control audi

Android Audio Play out Channel

1:7 Mouth 8 TongueSpeakers, headphones, and earpieceIs by: Audiomanager.setmode (audiomanager.mode_in_communication)Audiomanager.setspeakerhponeon (boolean value). These two are set. But some don't seem to support it.Switch speaker and handset on the M phone cannot switchAndroid Audiotrack Audio Playback analysisWhen the audio resource is playing, there are frequent conflicts, such as when the music is play

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