I am using DSK6416 and I am a beginner. I could successfully test some simple programs like sine wave generation, amplitude modulation, etc. on my starter kit. But, when I tried to input voice instead of 1KHz test signal to my kit, I am not getting modulated output. To make my problem more clearer, I would like to mention the following:-
1. I am referring to a simple program from Rulph Chassaing book which performs Amplitude Modulation using internal baseband signal. Instead of internal signal, I gave input to "Line In" input of the kit and used a statement baseband[20] = input_sample(); I got AM output from the "Line Out" output of the kit.
2. Then I removed the signal generator from the input and connected "MIC" to the input. But, it is showing only carrier at the output of the kit.
3. To diagnose the problem, I tried to check whether my audio is reaching the DSP or not. For that I used a simple loopback application where I used a statement output_sample ((short)input_sample()); This statement is able to show me the loopback for input of 1KHz signal, but not showing me my voice loopback.
4. I think I am doing some basic mistake. Can somebody guide me how to go ahead???
Pls guide me...
Thanks...
Sachin Regundwar
