Sigma DE2-70 Manual Do Utilizador

 

DE2-70 User Manual

 

22 

 

 
 

 

Figure 3.11.    Playing audio from a selected wave file 

 

To record sound using a microphone, please follow the steps below: 

 

1.  Plug a microphone to the MIC port on the board.   

2.  Select the “Record MIC” item in the com-box and select desired sampling rate, as shown in 

Figure 3.12.   

3.  Click “Start Record” to start the record process. The program will configure the audio chip 

for MIC recording, retrieve audio signal from the MIC port, and then save the audio signal 

into SDRAM-U1.   

4.  To stop recording, click “Stop Record”. Finally, audio signal saved in SDRAM-U1 will be 

uploaded to the host computer and displayed on the waveform window. Click “Save Wave” 

to save the waveform into a WAV file.