| ??? 03/28/05 16:58 Read: times Msg Score: -1 -1 Didn't Search First |
#90554 - Capture audio signal |
Dear all,
i want to capture the human voice by using 8051 and then store the voice in the external data memory. And play back the voice in later time. So, my apporach is mic -> LM324 amp. circuit -> ADC -> 8051(store the voice data)-> DAC -> LM386 amp. circuit -> 8 ohm speaker So, what is the min. sampling frequency that i need to use to capture the voice signal. I have to use timer to interrupt the 8051 to capture the data? or do you have another method? ADC: TLC549 DAC: TLC5620 both are using SPI interface for data transmission. |
| Topic | Author | Date |
| Capture audio signal | 01/01/70 00:00 | |
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