Lesson three the hardware operation example of recording
The following is mainly about the hardware use and operation of recording:
1. Handling the recording environment, to ensure quiet and sound insulation (preferably to do the sound absorption processing, but the amateur conditions are not good, this is a bit difficult, I can not do, hehe).
2. Fixed the mic
all the read events again according to the occurrence time. However, to simplify the design, the wall clock time to read the event is recorded directly here, although the time relationship between the different input nodes may be biased. But the direct order of the same input node is correct.The main style of the program is the C and C + + mix, the reason for using C + +, mainly because the use of template processing map and vector, so do not use the
First, communication modules such as WiFi, ZigBee will have a unique MAC address, these modules in the factory need a set of systems to ensure uniqueness.This set of MAC address recording and repeat detection system has been through the KK-Class shipment verification, difficult to slip through.Second, the system design ideas:The client program reads the module MAC address and then goes to the pass database
Two days ago, I learned three recording modes: "normal recording" (normal recording mode), "analog recording" (analog recording mode), and "low level recording" (low-level recording mod
Musical instrument recordingRecently, I have seen a lot of books related to recording studio. The question of traditional instruments and electronic musical instruments that bothered me before. For example, how much difference does an electric piano play with a piano? For example, what is the difference between the sound of an electronic violin and a violin? Simply put, you can hear the difference by standing in front of the piano. If you listen to th
This article was reproduced from: http://blog.csdn.net/self_study/article/details/52965045Recently in the study of the relevant content of authority adaptation, the collation of the previous rights blog as follows:Android permission permissions and security mechanism resolution (on)Android permission permissions and security mechanism analysis (next)Android Hover window permissions for each model system adaptation DaquanThis blog is mainly about recording
First, download the installationHttp://www.badboy.com.au/download/add Download the latest version, general installation Next, next ...Second, useTo run the program, enter the destination address in the URL address field:Demo Getbookinfo interface here, script to show all recorded stepsRecord off (F2) stops recording.File-export to JMeter Save the recording script as Test_badboy.jmxThird, JMeter running TEST
When using vim to accidentally touch the Q key, the lower left corner of the "recording" This logo, which is a powerful function of vim. He can record a macro and record all of your keyboard input, including input in insert mode, various commands used in normal mode, and so on when the recording is started. Specific use: First step: In normal mode (non-insert mode, non-visual mode) Press Q keyboard Step two
3433: [Usaco2014 jan]recording the Moolympicstime limit:10 Sec Memory limit:128 MB
submit:137 solved:89
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DescriptionBeing a fan of all cold-weather sports (especially those involving cows), Farmer John wants to record as much of the upcom ing winter moolympics as possible. The television schedule for the moolympics consists of n different programs (1 Give n intervals [a, b]. There are 2 loggers. The intervals store
This article introduces awk. It is a powerful tool for recording file data processing. Why?
Awk provides the following functions implicitly:
(1) Open each file and read each line. For each line, separate rows and fields based on the field separator and line separator, and save the file, row, and field information;
(2) perform condition judgment and pattern matching on each row. If the result is true, perform the corresponding operation;
(3) In fact, i
From: Shanghai Shangguan embedded training Co., http://www.uplooking.sh.cn/embedded_training/tecnews/2012/1117/1456_1.html.
Note: 1) the audio device can only be opened in o_wronly or o_rdonly mode, but cannot be opened in o_rdwr mode because it does not support simultaneous recording and playing. 2) For example, "./OSS/tmp/test.wav 22050", the system will automatically record 2 MB and then play it out. 3) supports audio Sampling Rate Adjustment: s
Some problems encountered:
1. Permission: Because recording is required and Recording files must be stored in the sdcard external storage device, two permissions are required.
2. When using the simulator, there may be no sdcard external device, so the following steps are required to simulate the sdcard on the simulator.
Run the "mksdcard 125 m./sdcard. IMG" command to create a m image file in the current f
The computer has a function of its own, tape recorder, there are many new people do not know, of course, will not use, now we take a look. First click on the beginning of the computer, find the program, accessories, and then click on the Recorder.
We will find a box that is the interface of the recorder.
The following figure
In this, we start, click on this red dot is the beginning of the meaning, we click, we can start
A "problem step recorder" tool provided in Windows 7, through which we can record problems on the screen to the other party, in this way, when the other party understands our operation process, it is convenient to solve the problem as soon as possible. The procedure is as follows: 1. Click "Start Letter"> "run" "and then click" restart psr.exe ". Click" OK "to open the problem recorder toolbar and click" start record. 2. after the program starts, we c
);Lrs_accept_connection ("Socket0", "Socket1");After creating the socket, you can send and receive the data in the order you want, and if you write it yourself, you need to add BUF packets in the data.ws file according to the requirements of the program protocol.Do not forget to close the socket at the end of the socket, typically initialize the socket in Vuser_ini with the Lrs_startup function, which specifies the highest version of the Windows socke
Video Learning Website learning duration real-time recording-performance optimization practices, real-time performance optimization
I. Application Scenario Description
The system provides services for teachers to learn online. The video learning website supports online video learning for teachers. During video learning, the learning process of teachers is recorded. Each topic corresponds to multiple teaching videos, and the duration of each teaching v
1. Overview2. Code/** the simplest recording program * Miu mk*[emailprotected]* This program to achieve the acquisition of microphone audio data, suppression for aac*2015-6-19*/#include "stdafx.h" #include 3. Engineering http://download.csdn.net/detail/dancing_night/8822669Using FFmpeg to achieve recording
==================== Problem Description ====================Android Development Board in hand, mic recording Go is i2sI'm using the audio recording software provided by Android itself soundrecoder.apkWhen recording, the small pointer that detects the sound seldom shakes, when my voice is high, I can record it, the sound is smooth, and then a high or can record!T
I am often asked how to calculate the volume during recording. The iOS platform has APIs that can be called directly, but there is no good method on the Android platform, so we have to calculate it by ourselves.
The demand for volume calculation is because many applications want to achieve some animation effects based on the volume. Therefore, based on this requirement, we only need to change the volume value obtained based on The Voice size, without
Android mediarecorder allows you to pause resumable recording.
I recently studied the mediarecorder recording function and found that after the pause, I continue recording. I have little online reference information. Now I will share my learning achievements with you:
The basic principle is as follows: mediarecorder uses mic
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