Difference between bit rate and baud rate?
Baud (pronounced /b??d/, unit symbol “Bd”), is a measure of the symbol rate, that is, the number of distinct symbol changes (signalling events) made to the transmission medium per second in a digitally modulated signal. The term baud rate is also commonly used to refer to the symbol rate. Bitrate (sometimes written bit rate, data rate or as a variable Rbit) is the number of bits that are conveyed or processed per unit of time. Bit rate is often used as synonym to the terms connection speed, transfer rate, channel capacity, maximum throughput and digital bandwidth capacity of a communication system.
“Bitrate” is sometimes used interchangeably with “baud rate”, which is correct only when each modulation transition of a data transmission system carries exactly one bit of data.