说明：  to show the waveform of audio file and play it on computer Purpose: Familiar with WAV file format and UI design It should have the following functions: Provide a Graphic User Interface for user to browse the file system and select one WAV file Show the waveform of input audio signal Play the selected WAV file Print the parameters of WAV file such as sampling rate, bit-depth, etc
(to show the waveform of audio file and play i t on computer Purpose : Familiar with WAV file format and UI design It sh ould have the following functions : Provide a Graphic User Interface for user to bro need the file system and select one WAV file Show t he waveform of input audio signal Play the selec ted WAV file Print the parameters of WAV file suc h as sampling rate, bit-depth, etc.)