how to use oscilloscope for audio

My Android advanced tutorial ------) Android implements music oscilloscope, balancer, bass, and audio field functionsThis example is from crazy Android handout. To implement specific functions, you need to understand the following APIs: MediaPlayer Media Player Visualizer spectrum Equalizer balancer BassBoost bass controller PresetReverb preset sound field controller paintingThe following figure shows the e

Recently made a mistake Test action:test Scenario: direct from the mains socket to access the 3W non-isolated switching power supply circuit board, using an oscilloscope to test the output voltage, when the oscilloscope through another outlet directly from the mains powertest Result: in the oscilloscope to the output negative moment, the leakage protection switch

Use SurfaceView to display the sine curve, simulate the oscilloscope, and surfaceview the sine. As we all know, views are repainted through refresh. The Android system re-painted the screen by sending a VSYNC signal. The interval for refresh is 16 ms, if the view completes all the operations you need within 16 ms, the user will not feel stuck visually. If there are too many operation logics to be executed

To play and record audio on iOS devices, we recommend that you use the avaudioplayer and avaudiorecorder classes in the avfoundation framework. Although its usage is relatively simple, streaming is not supported. This means that before playing the audio, you must wait until the whole audio is loaded to start playing th

QQ audio and video to do continuous shooting? 1. The video that will burst is opened in the QQ audio-visual, if did not download a 3. For file name, save type, thumbnail layout (row, column adjustment), picture width do edit, save can How to use QQ audio and video to do gif map? 1. The video to be interc

# Include ".../../include/mita. h"/** # Ifdef _ DEBUG # Pragma comment (lib, ".../../library/mitaD. lib ") # Else # Pragma comment (lib, ".../../library/mita. lib ") # Endif # Include # Include # Include # Include # Pragma warning (push)# Pragma warning (disable: 4996) MITA_STATICMITA_INLINEMITA_VOIDMITA_CheckError (MITA_VOID){MITA_ERROR lastError = MITA_GetLastError ();If (lastError! = MITA_ERROR_ OK){Printf ("ERROR: MITA Framework error with % u codes \ n", lastError );Exit (lastError );}} M

device. After the download is complete, the iniSound function is called, this function calls the decodeAudioData function in WebAudio to decode the downloaded data (currently stored as ArrayBuffer). If the platform does not support decoding audio files, an error callback function is called, if the decoding succeeds, a successful callback function is called. Now, if the decoding is successful, call the playSound function in the decoded function to pla

); Maudioencoder = Mediacodec.createencoderbytype (Audio_mime_type); Maudioencoder.configure (audioFormat, NULL, NULL, Mediacodec.configure_flag_encode); Maudioencoder.start ();The 2nd part enters the main loop, the app draws directly on surface, because this surface is applied from Mediacodec with Createinputsurface (), so you don't have to explicitly use Queueinputbuffer () when you're finished. Give it to encoder. Drainvideoencoder () and Dr

Web Audio API hands-on teaches you how to use web APIs to process sound signals: visual music demo,1. Introduction to Web Audio APIs The Web Audio API provides a very effective and universal system for controlling Audio on the Web, in general, we can

Use of Embed tags (use of plugins that play various audio videos in a Web page)Link Address: http://blog.csdn.net/TomyGuan/archive/2006/11/10/1377807.aspxInstructions for using the player plugin:Code:SRC: path and file name of the music file; (full path or URL)Showtracker: To show the playback progress barShowpositioncontrols: For whether to show playback control

HTML5 audio labels use js for playback control instances, html5jsThis article mainly introduces the HTML5 audio tag using js for playback control instances. This article provides code examples to demonstrate how to obtain the playback time, play, pause, mute, and other control methods, for more information, see The Here we can

White Wolf Source: Http://www.manks.top/article/h5_audio This article copyright belongs to the author, welcome reprint, but without the consent of the author must retain this paragraph statement, and in the article page obvious location to the original link, otherwise reserves the right to pursue legal responsibility.How do I play audio on a webpage? The topic is very tall, actually the development work really is very easy, only need to

Use DirectShow to implement QQ's audio/video chat function Currently, popular instant messaging tools, such as MSN and QQ, all implement the video and audio functions. Through video and audio, we can better communicate with our friends through the network, this article uses DirectShow technology to simulate QQ to achie

Problem You want to play a sound in the game. Note:Zune does not support xact, so refer to the 7-1 and 7-2 tutorials to learn how to play a sound on Zune. Solution By using xact, a free tool provided by xNa game studio 3.0, you can create xact projects that contain all the sounds used in the game. You can import this xact project to the xNa project, so that you can use a simple lineCodePlay back the sound stored in the xact project. Working Princi

Xilisoft Video Conversion expert (Converter) is a powerful, user-friendly audio and video format conversion software, support for more than 150 kinds of audio and video format of the transfer, but also support the ipod, IPad, IPhone, PSP, Apple TV, 3GP mobile phone and a variety of Google mobile phones and other commonly used digital devices. How-to Tutorials We actually operate this software to convert a

HTML5 is most powerful in processing media files. For example, you can use a simple vedio tag to play a video. Similarly, there is a corresponding tag for processing audio files in HTML5, that is, the audio tag. This article describes how HTML5 uses the Audio tag to synchronize the lyrics. If you are interested, you ca

Looking for material to re-do Flappybird today, I learned how to set the background audio for an app, and found that by encapsulating the Soundpool class, you can do it well.The Soundpool class is better suited to play some of the more ephemeral and smaller audio streams like game sounds, and it supports simultaneous playback of multiple audio streams, while larg

This article mainly introduces the use of the audio tag in HTML5. You can add audio playback controls in various browsers. For more information, see the HTML5 standard webpage, we can use the audio tag to call and play the sound. The following are the three basic HTML5 forma

Non-reproducedIntroduction to the acquisition of audio streams using winmm.hYou first need to include the following reference objects#include #include "mmsystem.h"#pragma comment (lib, "Winmm.lib")Audio acquisition requires 7 functions to be called1. Waveingetnumdevs: Returns the number of waveform sound input devices ready in the systemUINT Waveingetnumdevs (VOID);2. Waveingetdevcaps: Check the characteris