Hi, I have run tuner from DirectX filter graphs. My Tv Tuner Card does not provide I/Q samples(Low frequency) as Realtek RTL2832u based USB Tuners so i need to get RF samples directly from TV Tuner Analog Audio out pin and store it in hard disk for digital signal processing post processing. I am unable to find any information on this topic also the Directx (Graphedit) application does not allow TV Tuner output pins to be connected to its Sample Capture filter. Please provide info with source code example.

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Hi, All last year i posted for solution to programatically retrieving I Q data from USB Tv Tuner (Gadmei UTV382 USB TV BOX) for implementation of SDR. Since then no reply was received that could solve the problem. Some detail of the device, it has 1. XCEIW XC4100ACQ tuner 2. SUNS AV600 Chip (i dont know exactly its DSP chip or demdulator) 3. No FM support The questions are: 1. Having no FM support as present in RTL2832u, how confirm that this stick can deliver I Q samples? 2. Is there any tool(API) that can scan the internals of USB …

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Hi All, I want to grab TV Tuner Raw Samples for implementing FM receiver. I need to have mechanism to Tune desired frequency and then grab Samples of that frequency, in this case it would be IF samples and then implement FM receiver over it. I have already seen various examples at codeproject but they are not working on raw samples instead getting decoded data for video and audio. Can any one tell me how to do this under windows. Programming language could be c, c++, C# or VB?

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The End.