audio troubleshooter

Today see very good introduction audio development articles, reproducedOriginal address: http://msching.github.io/blog/2014/07/07/audio-in-ios/PrefaceMusic-related app development has been for some time, in the process of the app's player several changes I also therefore for iOS audio playback implementation has been a certain research. Write this series of blog

Audio BasicsWhat are the important attributes of sound? Loudness (loudness) Loudness is the size of the various sounds that humans can perceive, that is, the volume. Loudness is directly related to the amplitude of sound waves. Tone (Pitch) The tone is related to the frequency of the sound, and the greater the frequency of the sound, the higher the tone the human ear perceives, or the lower it will become. Tone (Qu

I. Basic Concepts 1 bit rate: the number of bits required for encoding (compression) audio data per second. The unit is usually kbps. 2. Sound Intensity: the subjective attribute of a sound indicates the degree to which a sound is heard. The intensity of the sound changes, but it is also affected by the frequency. In general, the intermediate frequency pure audio is better than the low frequency and hig

Go from Android 4.1 audio system Change instructions to Android 4.1, English code abbreviation for JB. In the eyes of the Chinese people, the word jb is also a little related to animals. Google so frequently modified Android, finally launched a can be all day jb JB hanging in the mouth of the version. Later my article can also use JB to express the version number, one side with JB said Chairman Mao often said "strategic contempt." Please, according to

Record: Question: How can I play a WAV, WMA, or MP3 audio in wince? What is the specific function? I use playsound (text ("\ Sounds \ bell.wav "), null, snd_sync | snd_nodefault); why not? I put \ Sounds \ bell.wav directly under the root directory of the project folder. After I remove snd_nodefault, I only play a "beep" sound. It is estimated that it is a system sound. You can also use sndplaysound () to answer the same question. Why: if you can play

#include #include#include#include#include#include#include/*The following three parameters are related to a specific file * cmd:file audio file * [file Pass.wav] =>> Pass.wav:RIFF (Little-endian) data, WAVE Audio, Microso FT PCM, + bit, mono 44100 Hz * 1. 16-bit * 2. Mono for the channel =1, stereo for stereo = 2 * 3. 44100HZ frequency This is what we all know, and the number of bits to capture or play

　Windows7 Audio Service not running solution Workaround 1, Windows7 "Audio service is not running", there is a red fork to do? User tips simple approach: Point small speaker, the volume to the maximum Workaround 2, Windows7 Audio service failed to start you can open the Management tool for Control Panel, open the list of services, select the Windows

How does the WIN8 system set up the audio manager? Win8 Set the Audio Manager method: 1, the first speaker audio cable unplug, temporarily not connected, in the Control Panel to open the hardware and voice button, click on the audio manager; 2, plug in the speaker audio

In PowerPoint slides, we often use audio and video files, but what kind of audio and video files can be played in PowerPoint. Today I will discuss this topic with you. Figure 1 In PowerPoint, audio and video files are often played through "Insert → movie and sound → files in movies (or sound in Files)", which makes it inconvenient to control sound a

The versatile audio Converter supports all current popular audio and video formats. such as: MP3, MP2, OGG, APE, WAV, WMA, AVI, RM, RMVB, ASF, MPEG, DAT, 3GP, MP4, FLV, MKV, MOD, MTS, such as audio and video format, converted to the MP3/WAV/AAC/WMA/AMR, etc. More powerful, the software can extract audio files from the

The browser plays the audio file directly, 1 is the direct access to an HTML audio file, and 2 is the return of a Java audio stream to the browser parsing.The following implementation of a Java WAV file audio stream, you can play audio files directly1 Packageorg.lib.speech.

Java audio playback, because you have to rely on the local environment, so Java has little advantage in audio processing, or since the Java system development is not too much to consider audio playback factors, to know the first version of Java 1.1, No later Javax.sound package, audio can only be transferred through th

This article to crawl Himalaya "the novel of the Four Kingdoms-the original reading aloud," the book as an example, demonstrates the Python crawler. Original book Address: http://www.ximalaya.com/4228109/album/268522/ 1. Enter the address we can find that the page has a very neat directory, then the page source code must also have a very regular directory, go in and see. 2. Clearly guessed right, the source code does have this very obvious rule, each chapter has its own fixed template: But at t

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

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 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 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

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

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

What is AAC? AAC, Advanced audio coding, is a technique for compressing digital audio files. officially part of the MPEG-4 standard, itIsMost widely used to create small digital audio files. The current variant is specified in ISO/IEC Standard 14496-3. AACIs conceptually similar to the ubiquitous MP3 format. like MP3, it takes advantage of deficiencies in huma