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group : microsoft.public.win32.programmer.directx.audio      view archive
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[XAudio2] Mapping channel indices to speakers     Fri, 4 Jul 2008 14:23:15 +0100
In XAudio2, does the mastering voice map channels to speakers in the order they appear in the header file? I can't actually find documented what the 'meaning' of, say, the third input channel to the mastering voice is. Going by the order in the header, it would be the LFE for a 2.1 setup, or the back left fo ...

Re-mixing filter?     Fri, 27 Jun 2008 03:51:01 -0700
Hi, I would like the use of a general audio re-mixing filter. It should be able to resample the sample rate, as well as re-mix channels. I've begun to write my own, I did resampling no problem (as supreme quality is not necessary and simple linear filtering sounded OK to my ears). I started writing th ...

IBasicAudio interface not working on windows Vista     Mon, 23 Jun 2008 23:26:13 -0700 (PDT)
HI All, I have made an directshow transform filter for MPEG contents.In that filter i am using IBasicAudio interface for knowing the WMP volume levels through put_Volume and get_volume functions for my application. This application is running fine in Windows XP but when i am trying to RUN it on VIST ...

Yet another VU-meter post     Mon, 23 Jun 2008 11:09:41 -0700 (PDT)
Hello, I am working on a program in which I would like to have a real-time VU- meter. I have got experience with DirectShow programming and it seems that I need to use the SampleGrabber filter for this. But that's where my knowledge stops (I know how to get samples with it though). I would like to use t ...

It's any menthod to detect microphone plugin ?     Sun, 15 Jun 2008 19:03:59 -0700 (PDT)
Dear Advance: I need to detect microphone plugin or not by programning(Any language).How can I start for it? Thanks any suggestion. ...

stop sounds of a different process     Thu, 12 Jun 2008 03:30:00 -0700
Hi, I have a program (written in C++) which pauses other processes (specific ones...) on certain scenarios, and then resume their actions after a while. It does so by basically pausing all the threads of the relevant process (and then resuming them) My problem is, sometimes these processes are in the middle ...

Clips with multiple audio streams in DES     Wed, 11 Jun 2008 03:07:59 -0700 (PDT)
Hi, I have seen a problem in DES when trying to distribute audio streams (from a single source file with multiple audio streams) to different tracks or groups. Until now I've succesfully tested this situation for clips with just 2 audio streams and by appending the source on the timeline just once: <grou ...

AM_MEDIA_TYPE friendly names     Tue, 10 Jun 2008 10:26:34 +0530
Hello Everybody, Can you please tell me how to retrieve friendly names of AM_MEDIA_TYPE values ? Regards, Shoeb ...

Why File Writer Filter don't get samples (E_INVALIDARG)?     Sun, 8 Jun 2008 21:07:02 -0700
Hi. I try to modify LAME Direct Show Filter code to enable connect it directly to FileWriter filter. So I get LAME 3.98b8 sources. Modify code to enable use { &MEDIATYPE_Stream, &MEDIASUBTYPE_MPEG1Audio} as output format. When output sample has this format I run REFERENCE_TIME rtEndPos = m_rtBytePos+frame ...

Problem using IMemoryData interface     Sun, 8 Jun 2008 20:30:02 +0400
Hello Well, I am trying to open a file in a buffer and send this buffer through the phone I am using C# and DirectShow.net I use DirectShow.net in three steps as follows:- IMediaStream TerminalMediaStream = MediaStreamTerminal.QueryInterface(typeof(IMediaStream)) as IMediaStream; //MediaStreamTerminal ...


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