Variable-length source codes provide bit savings compared to fixed-length source codes.Group of answer choicesTrueFalse

Variable Length Coding (that is, assigning a variable length code word with different numbers of bits representing different symbols) will always provide a coding advantage (i.e. the average number of bits/symbol) when compared with a fixed length coding scheme (i.e. all symbols are represented by code words with the same number of bits).Question 4Select one:TrueFalse

huffmann codes areSelect one:a. uniquely decodableb. lossless source coding techniquec. all of themd. variable length codes

Classify each code in the table below according to the standard definitions and when you have more time evaluate the length, entropy and efficiency  for each instantaneously decodable code.Source SymbolProbabilitiesCode-1Code-2Code-3Code-4Code-5X11/2100010001X21/41011011101010X31/811010110110110110X41/811101111111011011001

In digital companding, for the compressed code, the first bit is known as:Group of answer choicessign bitsegment identifiermagnitude bitmost significant bit

Essentially, the decoder guesses what the truncated bits were prior to encoding. The most logical guess is halfway between the minimum- and maximum-magnitude codes.Group of answer choicesTrueFalse