进入超级用户视图

操作步骤：

[huawei]super

在此处输入密码，密码为sbqygmmb

[huawei-supervisor]

使用h-dsp pcm [channelNo]命令可以抓取1分钟的pcm数据，在抓取过程中，如果重复执行h-dsp pcm [channelNo]命令，会看到大小在不断增长，抓完会有提示(红色文字部分)，最终抓取pcm数据文件的大小大约为964K，如果文件大小相差太大，则抓取的包有问题，请重新抓取。

操作示例：

[huawei-supervisor]

[huawei-supervisor]h-dsp pcm 0  

  channel 0 start capture pcm data packet, addr:0x7cb34b4

[huawei-supervisor]

[huawei-supervisor]h-dsp pcm 0

  Channel 0 has been capturing PCM data packet, size:40488, addr:0x7cb34b4

  please h-dsp pcm free first.

[huawei-supervisor]

[huawei-supervisor]h-dsp pcm 0

  Channel 0 has been capturing PCM data packet, size:77120, addr:0x7cb34b4

  please h-dsp pcm free first.

[huawei-supervisor]

[huawei-supervisor]h-dsp pcm 0

  Channel 0 has been capturing PCM data packet, size:111342, addr:0x7cb34b4

  please h-dsp pcm free first.

[huawei-supervisor]

[huawei-supervisor]

[huawei-supervisor]

  4VI: PCM data buffer has been full, stop capturing PCM data.

  4VI: Debug PCM error! Fail to record packet number.

[huawei-supervisor]

在路由器上启用ftp服务器，从PC机上ftp登录，get pcm就可以把抓取到的pcm数据包下