record internal audio android

Android calls the built-in recording audio program Android has its own Audio recording program. You can specify an Action MediaStore. Audio. Media. RECORD_SOUND_ACTION Intent. Start it. Then, in the onActivityResult () method, retrieve the Intent Data, which is the URI of t

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

Android 4.1, abbreviated as JB. In Chinese eyes, the word JB is also related to animals. Google modified android so frequently, and finally launched a version that can be put on the mouth of JB all day long. In the future, my articles can also use JB to express the version number, while JB to express what Chairman Mao often said, "Strategic contempt". Please try to understand my mood for writing the word JB

involves loading audio-related hardware so. This part of the work at 4.0, there is no too much change. But the old friends have changed a lot. First look at the Mixerthread family. Figure 1 Playbackthread family Figure 1 a little explanation: Threadbase is derived from thread, so it will run in a separate line approached (wordy, threads and objects do not really matter, do not understand the code of multithreaded programming please be sure t

Basic knowledge about Android audio Development Let's start with a piece of gossip. Some time ago I had a sentiment: Android development is not a way to go. It is just a platform that provides many encapsulated APIs, this allows you to quickly develop applications for specific services. The real value lies in the integration of

Two audio recording methods for Android In mobile APP development, every time an APP is designed for multimedia development, many programmers will suffer, and the project development progress will slow down And the APP testing will increase. Multimedia Development in Android includes audio playback,

Audio terminologyIn this DOCUMENT Generic Terms Digital Audio Hardware and Accessories Audio Signal Path Android-specific Terms Sample Rate Conversion This document provides a glossary of audio-related terminology, including a

Audio this aspect is very profound, I certainly can not speak what advanced things, at most also just some basic knowledge, first, we want to introduce Android he provided the recording class, in fact, he has two, one is Mediarecorder, There is another one that we are going to use today, what is the difference between them? Audiorecord I. Distinction Mediarecorder and Audiorecord can

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

that SRC is destructive to sound quality. This problem exists not only in meizu M9. It exists in almost all Android devices. ALSA is an audio architecture designed for Linux desktops. It is actually not suitable for Smart terminal devices, at least a large number of open-source driversCodeCan be removed. for Android, these are all waste code. A new

buffer size parameter should be a multiple of the minimum buffer, depending on the specific requirements, sometimes factors such as network latency can also affect the buffer size.You should avoid using an empty buffer at all times, because it can cause playback to fail.The last parameter determines whether to send only one audio data (mode_static) or a continuous send data stream (Mode_stream). The first case involves sending the entire

IOS and Android audio Development Summary Recently, because the project needs to change the sound, it is not difficult to learn and Process audio. However, it is still tedious (more than expected) While my mind is still excited, I will summarize my thoughts and record them. This article mainly introduces three parts: 1

other factors, the resulting audio files may have a certain degree of distortion, in addition, audio and video codec can be done by pure software, but also by the use of specialized hardware chip to complete. Playback process Remove the relevant files from the storage device and decode them according to the encoding used in the recording process. The