hassanmd
Member level 1
Hi;
I am interfacing SAMBA (GSM Device with USB interface and audio in/out) with PC. I want to receive audio from SAMBA.
1- I made the audio output of SAMBA as input to PC MIC. But when I receive audio it is noisy.
2- But when I listen audio output directly from head phone it is clean.
3- And even more when the MIC from PC is get brought near to headphone from SAMA and then I record, it is clean too.
4- But as I, maintaining the 3rd configuration ,connect the ground from SAMBA's USB to GND of MIC of pc, its become noisy again like first one.
I have attached the audio sample in test.rarand block diagram of system. I can't get rid of noise you heard in audio sample.
Hope you find the solution.
I am interfacing SAMBA (GSM Device with USB interface and audio in/out) with PC. I want to receive audio from SAMBA.
1- I made the audio output of SAMBA as input to PC MIC. But when I receive audio it is noisy.
2- But when I listen audio output directly from head phone it is clean.
3- And even more when the MIC from PC is get brought near to headphone from SAMA and then I record, it is clean too.
4- But as I, maintaining the 3rd configuration ,connect the ground from SAMBA's USB to GND of MIC of pc, its become noisy again like first one.
I have attached the audio sample in test.rarand block diagram of system. I can't get rid of noise you heard in audio sample.
Hope you find the solution.
