HI Tim? ??????? Currently i am trying to communicate using the IRP call but there is no satisfactory result, is there any other method to do this. Thanks. Hi Matt, ???????? I know the virtual Audio cable can do this but i am trying to implement the same here,?Do you have any i/p for the implementation of VAC. Thanks. You understand that you actually have two separate devices here -- a simulated speaker and a simulated microphone. How are you communicating the buffer between the two devices? -----Original Message----- From: Tim Roberts <timr@xxxxxxxxx> To: wdmaudiodev@xxxxxxxxxxxxx Sent: Thu, 11 Sep 2008 10:46 pm Subject: [wdmaudiodev] Re: about DMA buffer karthiksharmasg@xxxxxxx wrote: > > I am working with MSVAD for past 6 months and came to > know its working a bit. The problem i am facing is with DMA buffer > How to write data to the DMA buffer? > My task is to get the audio stream output from the player and route > this audio stream as an i/p to an Recorder application. > > i.e, get the data from the DMA buffer ( using IdmaChannel::Copyto or > Copyto in BaseDMA.cpp) and to rewrite this data to the DMA buffer > (using Idmachannel::copyfrom or Copyfrom in BaseDMA.cpp). > I tried to write the data to an FIFO in the Copyto and in Copyfrom > read the FIFO data and pass it to the DMAbuffer,but the method didnt > worked good. Why not? What did it do? You understand that you actually have two separate devices here -- a simulated speaker and a simulated microphone. How are you communicating the buffer between the two devices? -- Tim Roberts, timr@xxxxxxxxx Providenza & Boekelheide, Inc. ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/