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Wavesurfer5/26/2023 ![]() ![]() !( examples/img/text-tracks.png?raw=true "Text tracks screenshot") Video.js offers a cross-browser implementation Text tracks (or captions/subtitles) are a feature of HTML5 for displaying The `fluid` option for video.js will resize the player according to the sizeĬonfigure the player enable the video.js `'fluid'` option: To disable and hide specific controls, use the video.js `controlBar` option: | `audioOutputReady` | Audio output was changed and is now active. | `playbackFinish` | Audio playback finished. | `waveReady` | Audio is loaded, decoded and the waveform is drawn. Plugin events that are available on the video.js player instance. Wavesurfer.js `seekTo` method, by using the `surfer` property of the You can access the wavesurfer instance, for example to call the | `setAudioOutput(deviceId)` | Change the audio output device using its ( ). | `exportImage(format, quality)` | Save waveform image as data URI. Returns 0 if no stream is available (yet). | `getCurrentTime` | Get the current time (in seconds) of the stream during playback. | `getDuration` | Get the length of the stream in seconds. | `setVolume(level)` | Set the volume level (value between 0.0 and 1.0). Also supports loading ( ) or ( ) objects. | `destroy` | Destroys the wavesurfer instance and children (including the video.js player). Methods for this plugin documented below are available on the `wavesurfer` method To try out the examples locally, checkout the repository using Git:Īnd start the local webserver for the examples: See the full `audio` example (( ) or ( )) and Clips with a duration that is longer than `msDisplayMax` will be displayed as `M:SS` or `HH:MM:SS`.| An audio clip with a total length of 2 seconds and a `msDisplayMax` of 3 will use the format `M:SS:MMM`. | `msDisplayMax` | float | `3` | Indicates the number of seconds that is considered the boundary value for displaying milliseconds in the time controls. | `debug` | boolean | `false` | Display internal log messages using the `videojs.log` method. This file can be generated using the ( ) utility. This allows the waveform to be created from pre-rendered peak data. | `peaks` | string | `null` | The URL of the JSON file with peak data corresponding to the source audio/video file. | `src` | string | `null` | The URL of the audio/video file or `'live'` when ( #microphone-plugin).| | option | type | default | description | The additional options for this plugin are: The plugin automatically registers itself when the ``Īnd enable the plugin by adding a `wavesurfer` entry with the related wavesurfer.js The plugin depends on the video.js and wavesurfer.js libraries: CHANGES.md) when upgrading from a previous ![]() If you want to use this plugin with an older video.js or wavesurfer.js version,įor a 1.3.x or older release of this plugin. Since v2.0 this plugin is compatible with video.js 6.0 and wavesurfer.js 2.0 and If you want to try the examples, check ( #examples). You can use ( ) ( `npm install videojs-wavesurfer`) to install the !( examples/img/screenshot.png?raw=true "Screenshot") Includes support for fullscreen mode and [real-time visualization of microphone It is scriptable and supports plugins.A ( ) plugin that adds a navigable waveformįor audio and video files, using the ( ) It therefore runs on most platforms, including Microsoft Windows, Mac OS X, Linux, Solaris, HP-UX, FreeBSD, and IRIX. Wavesurfer is written in Tcl/Tk using the Snack audio library. Wavesurfer provides basic audio editing operations, such as excision, copying, pasting, zero-crossing adjustment, and effects such as fading, normalization, echo, inversion, reversal, replacement with silence, and DC-removal, but, in view of its scientific orientation, does not offer effects of interest to musicians such as flange. WaveSurfer is free software, distributed under a permissive free software licence. It can read and write a number of transcription file formats used in industrial speech research including TIMIT. It is a simple but fairly powerful program for interactive display of sound pressure waveforms, spectral sections, spectrograms, pitch tracks and transcriptions. WaveSurfer is an audio editor widely used for studies of acoustic phonetics.
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