关于Audacity语音标注软件的使用

[关于Audacity语音标注软件的使用]

Part 1: How to manually label an audio file

1)下载Audacity 软件并安装:    http://www.audacityteam.org/download 
2）打开软件：导入语音demo.wav（可以在左边框选用"Waveform" 或"Spectrogrm"展示语音）
3）依次点击:  Tracks --> Add New --> Label Track
4）在语音区域，按住鼠标左键拖选择一个区域，然后同时按下ctrl + B
在Label Track 区域会出现一个“填空题”，把你的标签（speech）添在上面，
5）重复4)直到听到语音结束
6）依次点击  Tracks --> Edit Labels -- > Export   存为：demo.txt

Part 2: how to prepare and import label file for audio with Audacity

Step 1： ensure your label file is in correct format:

segment_startTime_inSecond    segment_endTime_inSecond    label

Must use TAB not space as separator. 

For example:
Audacity_label.txt
29.473812    49.066307    text1
57.213861    96.885166    text2
Note:   column1 and column2 indicates starting and ending time in second, respectively

save the label file as txt

Step 2: Import:

File->Import->Label

For more, please refer [1]

Reference:
[1] http://manual.audacityteam.org/o/man/label_tracks.html