exo audio

In scenes where audio and video are re-encoded and need to be synchronized, there are several basic principles to follow (otherwise the audio and video will be stuck and not smooth.) With audio AAC encoding frequency 44.1k, video H264 encode 25 frame rate for example): 1. Ensure that the audio and video frame arrival

Transferred from: http://tieba.baidu.com/p/2138076570Abstract: In order to solve the problem of audio and video synchronization caused by delay, jitter and network transmission conditions, a new audio and video synchronization scheme is designed and implemented to adapt to different network conditions. Using the audio and video coding technology, AMR-WB and H. e

(This article transferred from the Code farm Life )ObjectiveMusic-related app development has been for some time, in the process of the app's player after several changes, I also for iOS audio playback implementation has a certain research.Write this series of blog purpose on the one hand hope to be able to stimulate, on the other hand is also hope to help other iOS developers and enthusiasts less detours (I have encountered a lot of pits). This artic

1. Avaudiosession OverviewThe last year has been doing iOS client development for IPC camera. To deal with audio, you have to figure outAvaudiosession.First look at the Apple's official map:Audio SessionYou can see that avaudiosession is used to manage the resource usage of multiple apps on audio hardware devices (microphones, speakers).For example, avaudiosession can do these things. Set whether y

There are many articles that describe the poor status of HTML5 audio support. That is the case, so I will not repeat this view here. Instead, I focus on the issues and potential solutions that developers will encounter on a particular platform.HTML5 Audio from Codecanyon.neTableThe above table summarizes the current market share of Web browsers. Internet Explorer is still the main desktop browser, followed

In previous versions of HTML5, if you wanted to insert audio and video into a webpage, you would have to install a plugin, such as the most common flash plugin. A lot of people in the first installation of a browser will encounter the browser is recommended to install Flash plugin, on the mobile side as well. If you want to watch video on the phone must install Flash plug-in, but the phone itself memory is very small this undoubtedly increased the mob

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 under the Linux platform, and also some common audio programming framew

In the FFmpeg ultra-detailed comprehensive tutorial---------------a sample of reading PC camera video data and sending it as a live stream with rtmp protocol is done in the camera live text, but the audio support is not implemented, so the example is further perfected in this article and the video synchronization problem of live stream is analyzed in detail. , a code example is also given. For the live stream, here only the synchronization of the send

First of all you should know what is ape? What can ape file play with? A: Ape is a lossless compression format for audio CDs. A: It is recommended to install Plug-ins with Foobar2000,winamp (the latest version is not available) can also play, WMP install Plug-ins can also play. 　 Okay, now do the prep, you need to be prepared with the following software: 1. EAC 095 2. Monkey Audio 397 (that is, the monke

1. Basic knowledge of I2S 1.1 I2s Introduction I2S bus, the abbreviation Inter-icsound, is a bus standard developed by Philips for audio data transmission between digital audio devices, which is specially used for data transmission between audio devices and is widely used in various multimedia systems. The I2S is also a synchronous serial communication interface.

Categories: Unity, C #, VS2015Date Created: 2016-04-05 I. INTRODUCTIONThe choice of audio file resources should be based on the principle of smooth, trouble-free operation. The commonly used audio files are listed below.. AIFF is converted to uncompressed audio when importing, which is best for short sound effects.. WAV is converted to uncompressed

First, an overview of the WEBRTC audio processing flow, see:WEBRTC The audio session is abstracted into a channel channels, such as A and b for audio calls, a needs to establish a channel and b for audio data transmission. There are three channel, each channel contains codec and rtp/rtcp send function.In the case of a

Author: Yang xingping The resources on the Internet are really rich and colorful, such as MP3, movie and TV series, and funny cartoons and Flash. However, in the face of the vast Internet, A lot of netizens often look at the Internet and sigh, because some resources are difficult to save to a local computer to listen to or watch them again using the conventional method. Today, we will introduce the "audio and video probe". This software not only finds

Android Audio Analytics1 Android Audio System framework? Multimedia framework:The multimedia framework is responsible for encapsulating the playback/recording class, connecting the Android audio decoding library for audio software decoding, and connecting the high-pass Openmaxil interface. The upper app directly invoke

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 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

Audio, English, or you might see an audio output or input on the back panel of a VCR or VCD. This allows us to interpret the audio in a very popular way, as long as it is a sound that we can hear and transmit as an audio signal. For the physical properties of audio because i

Payload type (PT) Name Type No. of channels Clock rate (HZ) Description References 0 PCMU Audio 1 8000 ITU-T g.711 PCMMicro-Law audio 64 kbit/s RFC 3551 1 Reserved (previolet 1016) Audio 1 8000 Reserved, previuslyCELP audio 4.8 kbit/s RFC 3551, pre

Two ways of synchronizing audio and video synchronization with the time stamp as the benchmark with the time stamp of the video as the benchmark with the external clock as the reference to the standard audio-video synchronization This is a digression. This blog theme is not write audio and video synchronization but write audi