Snack声音扩展增加了用于声音播放/录音和声音可视化的命令，如波形和声谱图。它支持内存声音对象，基于文件的音频，音频流，WAV, AU, AIFF, 和MP3文件格式，同步和异步播放。 -Snack voice for the expansion of a broadcast voice / voice recording and visual orders, such as acoustic wave spectra. It supports voice memory object, file-based audio, streaming audio, WAV, AU, AIFF, and the MP3 file format, synchronous and asynchronous broadcast.