音频

音频标签用于播放音频并显示其波形。适用于需要标注音频区域、查看波形并在标注过程中操作音频的音频标注任务。

适用于以下数据类型：音频

参数

参数	类型	默认值	描述
name	string		Name of the element
value	string		Data field containing path or a URL to the audio.
[defaultspeed]	string	1	Default speed level (from 0.5 to 2).
[defaultscale]	string	1	Audio pane default y-scale for waveform.
[defaultzoom]	string	1	Default zoom level for waveform. (from 1 to 1500).
[defaultvolume]	string	1	Default volume level (from 0 to 1).
[hotkey]	string		Hotkey used to play or pause audio.
[sync]	string		Object name to sync with.
[height]	string	96	Total height of the audio player.
[waveheight]	string	32	Minimum height of a waveform when in splitchannels mode with multiple channels to display.
[splitchannels]	boolean	false	Display multiple audio channels separately, if the audio file has more than one channel. (NOTE: Requires more memory to operate.)
[decoder]	string	"webaudio"	Decoder type to use to decode audio data. ("webaudio" or "ffmpeg")
[player]	string	"html5"	Player type to use to play audio data. ("html5" or "webaudio")

结果参数

名称	类型	描述
original_length	number	length of the original audio (seconds)
value	Object
value.start	number	start time of the fragment (seconds)
value.end	number	end time of the fragment (seconds)
value.channel	number	channel identifier which was targeted

示例JSON

{
  "original_length": 18,
  "value": {
    "start": 3.1,
    "end": 8.2,
    "channel": 0,
    "labels": ["Voice"]
  }
}

示例

在标注界面上播放音频

<View>
  <Audio name="audio" value="$audio" />
</View>

示例

播放支持多声道的音频

<View>
  <Audio name="audio" value="$audio" splitchannels="true" />
</View>

示例

音频分类

<View>
  <Audio name="audio" value="$audio" />
  <Choices name="ch" toName="audio">
    <Choice value="Positive" />
    <Choice value="Negative" />
  </Choices>
</View>

示例

音频转录

<View>
  <Audio name="audio" value="$audio" />
  <TextArea name="ta" toName="audio" />
</View>

示例

用于标注音频区域并对音频样本进行评分的标注配置

<View>
  <Labels name="lbl-1" toName="audio-1">
    <Label value="Guitar" />
    <Label value="Drums" />
  </Labels>
  <Rating name="rate-1" toName="audio-1" />
  <Audio name="audio-1" value="$audio" />
</View>

示例

与视频同步

<View>
  <Video name="video-1" value="$video" sync="audio-1" />
  <Labels name="lbl-1" toName="audio-1">
    <Label value="Guitar" />
    <Label value="Drums" />
  </Labels>
  <Audio name="audio-1" value="$video" sync="video-1" />
</View>

示例

与段落同步

<View>
  <Labels name="lbl-1" toName="audio-1">
    <Label value="Guitar" />
    <Label value="Drums" />
  </Labels>
  <Audio name="audio-1" value="$audio" sync="txt-1" />
  <Paragraphs audioUrl="$audio" sync="audio-1" name="txt-1" value="$text" layout="dialogue" showplayer="true" />
</View>