audio transcription api

1. Download and compilation of PortaudioPortaudio is an open source cross-platform audio input/output library, official website: http://www.portaudio.com/. There is a download link inside the official website, I am under the pa_stable_v190600_20161030.tgz. Unzip the pa_stable_v190600_20161030.tgz file to the current file with the following directory structure:　1.1 Windows CompilationPortaudio source of the build directory has a msvc folder, containing

Detailed description of the mini-program Audio API and instance code, audioapi Nothing worth too much attention Important attributes: 1. wx. getBackgroundAudioPlayerState (object) Get the playback status 2. wx. playBackgroundAudio (object) Play Music 3. wx. pauseBackgroundAudio () pause music 4. wx. seekBackgroundAudio (object) sets the playback progress 5. wx. stopBackgroundAudio () stops playing music

1. Video and audio tagsor Property Value DescriptionAutoPlay AutoPlay (can be omitted) video AutoPlayControls controls (can be omitted) to display the playback controls to the userwidth px player widthsHeight px Player HeightsLoop loop, play continues, play count after playingPreload proload whether to wait for the load to play againsrc URL Video url addressPoster Imgurl loading the waiting picture pictureAutobuffer Autobuffer is set to browser buffer

public void surfacechanged (surfaceholder surfaceholder, int format, int w, int h) { br>} @Override public void surfacedestroyed (Surfaceholder surfaceholder) { Camera.release (); } Here's how to preview your data using Textureview:Textureview Textureview; Camera camera; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); Setcontentview (r.layout.activity_main);Textureview=(Textureview) Findviewbyid (R.id.texture_view); Textureview.setsurfac

Test code:Chromium M34 Audio API (htmlmediaelement) play music cannot get currenttime property updates

First, the basic knowledge of digital audio Fourier series: The waveform of any period can be decomposed into several sine waves, the frequencies of which are integral times. The frequencies of other positive line waves in the series are integral times of the base frequencies. The base frequency is called first-level harmonics. Pcm: Pulse code modulation, pulse code modulation, that is, the waveform according to the fixed-cycle frequency sampling.