| ??? 03/28/05 17:25 Read: times |
#90556 - Depends! Responding to: ???'s previous message |
Lo Chau Wing Jason said:
So, what is the min. sampling frequency that i need to use to capture the voice signal. Depends on what "quality" of recording you want. eg, The analogue "Plain Old Telephone Service" gives you 4kHz bandwidth, and digitises to 8 bits per sample. For higher quality, use a wider bandwidth and/or more bits/sample; For lower quality, use a narrower bandwidth and/or less bits/sample. You should be able to do the sums from there... |
| Topic | Author | Date |
| Capture audio signal | 01/01/70 00:00 | |
| Depends! | 01/01/70 00:00 | |
| ISD chips | 01/01/70 00:00 | |
| ISD chips ! | 01/01/70 00:00 | |
| AT89C51SND | 01/01/70 00:00 | |
MP3 Decoder | 01/01/70 00:00 |