android oscilloscope

My Android advanced tour ------> Android implements music oscilloscope, balancer, bass and audio field functions, and android advancedThis example is from the crazy Android handout. To implement specific functions, you need to understand the following APIs: MediaPlayer Med

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 cont

The last time I briefly introduced the use of AudioRecord and AudioTrack, this time I used SurfaceView to implement an Android mobile phone analog signal oscilloscope (PS: I have also talked about the mobile phone oscilloscope OF THE j2_version before ). Recently, the Internet of Things has become very popular. As mobile phone software developers, how can they co

The previous simple introduction of the Android program in the development of the use of Audiorecord and Audiotrack, this time combined with Surfaceview to achieve an Android version of the phone analog signal oscilloscope. Recently the Internet of Things is very hot, as a mobile phone software developers, how to do not modify the phone hardware circuit under the

The last simple introduction of the use of Audiorecord and Audiotrack, this time the combination of Surfaceview to achieve an Android version of the phone analog signal oscilloscope. Recently the Internet of Things is very hot, as a mobile phone software developers, how to do not modify the phone hardware circuit under the premise of integration with third-party sensors it? The microphone is a good ADC inte

Zookeeper Let's take a look at the program running in this article (the screen recording speed is slow, and the real machine runs more smoothly ): In this article, the program uses the 8000hz sampling rate, which requires a high real-time performance for the x-axis drawing. If the resolution of the x-axis is not reduced, the program's real-time performance is poor. Therefore, the program reduces the x-axis data range by 8 times ~ 16 times. Because the 16-bit sampling is used, the height of th

Oscilloscope is in the university when the teacher taught, but out of work has not been used, and gradually forget, and now learn again. Look at the effect chart: Here is a custom histogram, and then there is a button, click the button, where the pillars will keep moving, similar to the music player in the oscilloscope beat. Similar to the previous custom view, rewrite the onsizechange () method and th

Weekend play a little Hi, did not update the blog, today to make up, this oscilloscope is in the university when the teacher taught, but out of work has not been used, and gradually forget, and now learn again. Look at the effect chart: Here is a custom histogram, and then there is a button, click the button, where the pillars will keep moving, similar to the music player in the oscilloscope beat. Simil

Http://www.elecfans.com/article/85/126/2012/20120316264382_3.html23. How do I use an oscilloscope to measure differential signals?A: The best way is to choose a differential probe, the measured signal is the most realistic and objective; if there is no differential probe, you can use two differential probe to the oscilloscope two channels (such as CH1, CH2), and then use mathematical operations to obtain th

USB high definition isolation oscilloscope, virtual oscilloscope, technical features and applications USB oscilloscope market leader, model HS5, HS6, cs448 four-channel high definition isolation oscilloscope. The instrument has four differential input channels and a variety of probes that can be used for measurement in

During the test, how much bandwidth does the oscilloscope choose? First, check the following instance. It can be seen that the larger the bandwidth, the richer the signal frequency component that can be displayed, the closer the real signal waveform. 1. Precise bandwidth calculation of an oscilloscope Perform the following steps: A. Determine the fastest increase/decrease time of the tested

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

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

Before understanding the structure of the probe, You need to first understand the structure of the input interface of the oscilloscope, because this is the place connecting the probe, the input interface circuit of the oscilloscope and the probe constitute our detection system. Most of the input interfaces of the oscilloscope are in the BNC or BNC-compatible for

supplies, and other typical oscilloscope applications. 1. Differential Measurement characteristicsThe probe can be divided into passive probes and active probes in general, while wide bandwidth oscilloscopes and active probe users also need to choose between single-ended probes and differential probes. The pair of lines that carry the differential signal is called a differential route. This article is mainly about the differential probe. The most obv

Keywords: Player oscilloscope VB.net directsound9 Author: Dong Hanjun Reprinted please indicate from http://blog.csdn.net/a11s As the most basic function of a player, for example, hero Winamp mediaplayer real QuickTime has its own oscilloscope. Some interfaces are also provided to allow plugin to add more graphic effects. Many players do not have this basic function, probably because most of them d

Ubuntu runs on the oscilloscope and can still be used for mine clearance. following last year's appearance of the "Starling on the oscilloscope", I found another person! This is to install Ubuntu on the oscilloscope! It's so brave. What I accidentally saw in imageshack. us: download it and check out... From the meta information of the photo, it should be taken by

oscilloscope function:(1) Oscilloscope Tubes Operation section"Power": main power switch and indicator light. By pressing this switch, the LEDs on the left side of the LED are 5 lit, indicating that the power supply is connected."Inten": Brightness Adjustment button. Adjusts the brightness of the trajectory or light point."Focus": focus Adjustment button. Adjusts the focus of a trajectory or light point."Tr

-- Peng Xiaolin (qq: 196568501) Welcome! Note: 1. the oscilloscope must be a digital 2. The oscilloscope must have a afterglow function 3. The oscilloscope must have a trigger function (it seems that the digital oscilloscope has this function) Step 1: Enable the oscilloscope