android audio analyzer

MediaRecord can be used for recording in Android, which is easy to operate. However, it is not professional enough to Process audio. If you want to process audio in real time or encapsulate the audio You can use AudioRecord for recording. Here is a piece of code. Audio Rec

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 believ

Recently received a lot of users through e-mail or message that want to learn audio and video development, how to get started, I wrote a special article today unified reply.Audio and video This piece, there is really no comparison system of tutorials or books, online blog articles are relatively fragmented, I hope I can squeeze out the time of the whole topic in detail to say ~ ~ At present, I first give a large direction of the study guide, hope to h

The previous articles show how to capture audio using the Audiorecord provided by Android in the Java layer, play audio with audiotrack, and encode and decode using MEDIACODEC, which are Java layer APIs provided by Android , whether it is acquisition, playback, or codec, these API interfaces need to copy

The project needs to get the real-time volume value of the video playback, the simplest way is to listen to the audio output, get the audio output stream, and then convert.When investigating, first find this blog:http://blog.csdn.net/jinzhuojun/article/details/33748031The output stream data is recorded in real time using the newly added MediaRecorder.AudioSource.REMOTE_SUBMIX parameter in API 19.Because you

with the audio, here's another term we need to know: sample rate.When converting an analog signal to a digital format, the sample rate indicates how often a sound waveform sample is drawn to convert to a digital signal.In most cases, 44100Hz is often used because of the same sample rate as CD audio.Disclaimer (Must read!) ): All of the tutorials provided in this blog are translated from the Internet for learning and communication purposes only and sh

Introduction to the Android Audio FrameworkBasic audio knowledge What are the important attributes of sound? Loudness) The sound level is the volume of all kinds of sounds that humans can perceive. The sound intensity is directly related to the amplitude of the acoustic wave. Pitch) The tone is related to the frequency of the voice. When the voice freq

Android Audio and video development This piece does not currently have a comparative system of tutorials or books, online blog articles are also relatively fragmented. Only through a little bit of learning and accumulation of this piece of knowledge in series to accumulate together. In the process of learning, encountered do not understand the place, to go to Google in a timely manner or consult the great G

Android game background music audio volume control, android volume control Game sound effects are the music we use to play games. This is also a must-have for every game. However, if the background music you play is interrupted, we can use getCurrentPosition () this method is used to determine the audio playback offset

Android audio and video goes deep into an AudioRecord recording to generate pcm into wav (with source code download), androidaudiorecord This project address is named AudioRecord recording (can be paused, convert pch to wav ).Https://github.com/979451341/Audio-and-video-learning-materialsHere is an official description1. AndioRecord Overview The main function of

, intentfilter );Sendbroadcast (new intent (intent. action_media_mounted,Uri. parse ("file ://"+ Environment. getexternalstoragedirectory (). Getabsolutepath ())));}} Send broadcast information by clicking the button, and then scan the audio information through the broadcast service. The following is the broadcast service code: Package com. ZTE. broadcastreceivermediascanner; Import Android. App. alertdialo

The following are all converted from the android game programming entry-level classic. For more information, see the source. If you have an Android device, you will notice that when you press the increase or decrease button, the different volume settings you control depend on the application you are running. During a call, you control the volume of the input audio