Araw digital sound file samples a sound wave at some interval and measures the height of the wave at each point. thus, raw sound is recorded as a list of numbers.
in very broad terms the mp3 audio compression algorithm identifies frequencies and volume levels - low and high - that are outside the range of human hearing and removes the data representing these frequencies from the original. this technique results in a smaller audio file that sounds exactly the same to the human ear.
this technique is an example of what type of compression?
a. lossy compression
b. lossless compression
c. fast fourier transform compression
d. tailored compression

Consider the following code snippet: #ifndef cashregister_h#define cashregister_hconst double max_balance = 6000000.0; class cashregister{public: cashregister(); cashregister(double new_balance); void set_balance(double new_balance); double get_balance() const; private: double balance[12]; }; double get_monthly_balance(cashregister bk, int month); #endifwhich of the following is correct? a)the header file is correct as given.b)the definition of max_balance should be removed since header files should not contain constants.c)the definition of cashregister should be removed since header files should not contain class definitions.d)the body of the get_monthly_balance function should be added to the header file.