webex audio

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Win7 lower right corner volume icon Small horn Fork no sound audio service not running

Small series of computer just reload Win7 system, found no sound, using Windows7 users will find in the lower right corner of the taskbar in the position of the volume icon shows a small red fork, put the mouse up later to show that the audio service is not running or not plugged into the speakers or headphones. There are two situations in which the "Audio service is not running" but the computer has sound,

How to trim video or audio in PowerPoint

1, click the "Insert" tab, click "Video"-"video on PC" To insert a video, the effect of inserting the following image as shown below. 2. After inserting the effect as shown in the following figure, the next step begins to trim the video. 3. Select the video, which will display the video tool (including the format and Playback tabs), click the Play tab, and then click Clip Video. 4, the "Clip Video" dialog box, you can drag the following figure in the circle

Record Audio (recording)

1. Import #import 2. Implementation Protocol e.g. @property (nonatomic, strong) Avaudiorecorder *audiorecorder; @property (nonatomic, strong) Avaudioplayer *audioplayer; Path of audio files saved after recording -(Nsurl *) audiorecordingpath{ Nsfilemanager *filemanager = [[Nsfilemanager alloc] init]; Nsurl *documentsfolderurl = [FileManager urlfordirectory:nsdocumentdirectory indomain:nsuserdomainmask Appropriateforurl:nil Create:no Error:nil]; N

Android hardware and software integration and hotspot technical practice summary: Android audio Port Data Communication Development | Android devcamp | July 28 Beijing

Li pengjun, Android Project Director of AI totem, finalized the speech subject: Android audio Port Data Communication Development Topic Introduction: Li Peng will explain how to implement bidirectional communication between audio ports and external devices based on Android audio interfaces based on the development practices of AI totem and hardware. Personal Pr

Android audio system Notes II: resample-1

By default, the sampling rate of Android sound is fixed to 44.1 kHz, and the recording sampling rate is fixed to 8 kHz, therefore, the underlying audio device drivers only need to set these two fixed sampling rates. If the sampling rate transmitted from the upper layer does not match the sampling rate, the android framework layer performs resample processing on the audio stream. The resample process is as f

Android Audio Visualization Development Case Description _android

Android calls your own recorded audio program Android has its own audio recording program, we can specify an action MediaStore.Audio.Media.RECORD_SOUND_ACTION intent to Just start it up. Then, in the Onactivityresult () method, get the intent data, which is the corresponding URI of the recorded audio. Java code: Copy Code code as follows: Package Eo

C language parsing WAV audio files

C Language resolution WAV audio file code address: Github:github.com/casterwx/c-wave-master Directory Objective Understanding WAV Audio Files What is a binary file Binary format parsing of WAV C language parsing WAV audio files Two details Summarize In the computer has a variety of files, such as EXE executable file, jpg This image fil

IOS development: audio session

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

HTML5 audio API research and learning 1

HTML5 audio API research and learning 1 HTML5 audio 1. audio sprite The main idea of the audio genie is similar to that of the css genie. It combines an audio into an audio and uses currentTime to obtain the current playback time

HTML5 API-use WebAudio API to play audio files

The WebAudio API is designed to add sound effects to audio files, but it can also be used to play audio files. This is similar to the HTML5 audio element function, but the audio element can have a control interface, you can click the play/stop button on the interface to control file playback, or drag the progress bar o

Windows7 Audio Service not running solution

The windows7 appears the volume icon displays the small red Fork, appears "The audio service is not running"; Problem description: After using WINDOWS7 users into the system, a red fork appears on the volume icon in the lower-right corner of the taskbar, prompting the "audio service is not running" when the mouse points to the volume icon; In either case, the audio

What about the computer without audio devices?

Computers have long been an indispensable tool around us, whether it is work, learning or entertainment. What should we do if the computer has no sound and prompts to say "No audio device"? The scene screenshot is as follows: "No audio device" hardware article Since the system prompts to say "no audio device", naturally, first of all, is the

tutorial on making audio fade effect in PPT

The audio fade effect tutorial is made in ppt. Slide presentation PowerPoint is one of the most commonly used Office software, some partners like to use the climax of a song as a background music, but cut out the climax of the music need to make it a fade effect, to see the specific procedures. Method/Step First insert the prepared audio file in the Create open PowerPoint 2013. Procedure: Insert the

How to extract audio files from video?

Sometimes a lot of beautiful music or the sound of their interest in some video appears, and the network does not have a separate audio files related to it, at this time we will use some tools to directly extract audio files from the video file, the current many video players such as Thunder look, Storm audio or video or QQ a

Connection skills for USB cable and audio interface

In general, the chassis we can buy now provides front-end USB and front-end audio as well as switch-key functions. And the need for us to connect including switch machine button, hard drive indicator, audio interface and USB cable. It is easy to install the audio and USB cable, is usually modular design, and switch machine buttons because each motherboard manufac

Mac/iphone Multimedia (picture, audio and video) processing

Mac/iphone Multimedia (Pictures, audio and video) handles how to export photos and recorded videos from the IPhone app image captureImage capture transfers images between a digital camera or a scanner and your Mac computer. When a compatible device with a webcam is connected to your computer, you can use image capture to take a photo. You can then use these images in IPhoto or Automator, or share them over the network.Open the Image Capture app and se

How to obtain audio recordings using WINDOWSAPI _c language

The example of this article introduces the method of using winmm.h to obtain the audio stream, the following steps are as follows: First, you need to include the following reference objects #include Second, the acquisition of audio needs to call 7 functions 1. Waveingetnumdevs: Returns the number of waveform sound input devices that are ready in the system UINT Waveingetnumdevs (VOID

Big Talk Audio voice changer principle attached simple sample code

On the audio voice changer algorithm, this is a topic that many people are particularly interested in. Of course, there are many open-source algorithms to learn, there are time-domain-based, but also based on the frequency-domain algorithm. The final algorithm wants to achieve the same purpose. Recently there are many netizens asked about the voice changer algorithm some of the details of the problem, e-mail asked me. To give a more reasonable or

IOS Audio Cache playback Ideas

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

Mediamuxer and Mediacodec use cases in Android-Audio+video

In the Android multimedia class, Mediamuxer and Mediacodec are relatively young, they are JB 4.1 and JB 4.3 only introduced. The former is used to mix audio and video to generate multimedia files. The disadvantage is that only one audio track and one video track can be supported at this time, and only MP4 output is supported. But since it is a new thing, I believe that after the version should be a big impr

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