clc;?clear;?close?all;
%1.讀入音頻文件
[xrfs]=audioread（‘bad_apple.mp3‘）;
%2.截取音頻
xr=xr（:1）‘;?
data=xr（1251001:2251000）;
%3.轉換格式為wav
audiowrite（‘bad1.wav‘datafs）;
[xr1fs1]=audioread（‘bad1.wav‘）;
%4.播放
%sound（xr1fs1）;
sound（xr143.1*256*2）;?%44.1*256*2?=?22579

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-08-04?12:10??ac620_badapple\
?????文件??????143657??2020-08-04?12:08??ac620_badapple\ac620.jpg
?????文件??????183302??2020-08-04?12:01??ac620_badapple\ac620_badapple_quartus17_1.zip
?????文件?????2000044??2020-08-04?12:05??ac620_badapple\bad1.wav
?????文件?????3834357??2020-07-30?16:08??ac620_badapple\bad_apple.mp3
?????文件?????????287??2020-08-04?12:05??ac620_badapple\cut_music.m
?????文件??????973598??2020-08-04?12:02??ac620_badapple\pc_uart_tx.bmp
?????目錄???????????0??2020-08-04?12:10??ac620_badapple\串口調試助手\
?????文件????????1039??2020-08-03?15:50??ac620_badapple\串口調試助手\sscom.ini
?????文件??????772096??2010-07-28?15:21??ac620_badapple\串口調試助手\sscom33.exe