使用DirectShow进行PCM到PCM的转换 [英] PCM to PCM Conversion using DirectShow

问题描述

亲爱的

Dear All,

我要进行PCM到PCM音频的转换.我有8000/8/1 PCM波形文件，并且希望将其转换为11025/16/1 PCM格式文件.我对DirectShow不太了解.

I want to do PCM to PCM Audio conversion. I have 8000/8/1 PCM wave file and I want it to be convered in to 11025/16/1 PCM format file. I dont know much about DirectShow.

我该怎么办?有什么例子吗?

What I have to do? Is there any examples regarding this?

感谢&问候

拉克什曼.

推荐答案

拉克什曼，

Lakshman,

ACM Wrapper Filter is capable of requested PCM-to-PCM converesion. It is clear to see using GraphEdit utility if you connect its input pin to PCM source, you will see multiple PCM output choices.

If it is the only task yu need to do using DirectShow, it may appear to be a bit difficult because to use this filter, you will need to supply your own source filter to push PCM data into DirectShow graph and another renderer fitler to get converted data back into your application.

Roman

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