TA的每日心情 | 奋斗
2024-7-1 22:21 |
|---|
签到天数: 2014 天 [LV.Master]伴坛终老
- 自我介绍
- 数学中国站长
群组: 数学建模培训课堂1 群组: 数学中国美赛辅助报名 群组: Matlab讨论组 群组: 2013认证赛A题讨论群组 群组: 2013认证赛C题讨论群组 |
2#
发表于 2013-11-7 10:11
|只看该作者
|
|邮箱已经成功绑定
使用wavread
5 `, V) ^3 P. G& u3 N4 o( |Create a WAV file from the example file handel.mat,
7 t% C/ e6 j8 zand read portions of the file back into MATLAB.% Create WAV file in current folder.
! P- \& Z4 z3 U9 q2 V# Oload handel.mat) r3 g8 D( X6 l) `. a- l" ]8 b7 c$ H& P2 c
# D, s4 R, i9 }" M$ w: ~( Bhfile = 'handel.wav';
4 \% o3 \1 |! Gwavwrite(y, Fs, hfile)' b4 T3 x; W' X; f
clear y Fs
& M/ N( [. \. L1 p# C! i
# Z0 e( i0 D9 x% Read the data back into MATLAB, and listen to audio.
1 a% x. d1 F8 S a- @; h% B[y, Fs, nbits, readinfo] = wavread(hfile);
- e3 A4 M/ k+ b( N7 Esound(y, Fs);9 ~, W6 u F9 L" o1 Y/ P
- @; l9 t3 e0 w' L8 b8 R6 z- [# g( l2 I
% Pause before next read and playback operation.
9 Y' m7 K7 t% vduration = numel(y) / Fs;
: s" _+ g5 o0 t' hpause(duration + 2)
8 J# l8 a7 K2 p7 T' B8 | ! ?3 s p$ P( @/ V( b/ V
% Read and play only the first 2 seconds.
7 {" e# t5 Y7 jnsamples = 2 * Fs;
8 B2 O. J; V( w8 O: d[y2, Fs] = wavread(hfile, nsamples);
- D' m5 M$ _' J3 _2 Xsound(y2, Fs);- v) v% I3 T2 R9 E1 F
pause(4)% k+ ]$ K+ l1 e. }) d. _
8 s6 X, D: {: C/ v) ?. y/ n
% Read and play the middle third of the file." _9 ?' {4 {" c7 S8 [
sizeinfo = wavread(hfile, 'size');$ ?3 j2 a# T8 r
4 D! @& R# l1 `
tot_samples = sizeinfo(1);# C& j- X' s. U, `# h0 } S4 E# s- n
startpos = tot_samples / 3;1 ~- _% J/ h2 \" R/ \2 j
endpos = 2 * startpos;8 W4 `3 Y- L+ W; e( ~9 r3 K
+ v/ R9 [$ z I2 C2 i/ m[y3, Fs] = wavread(hfile, [startpos endpos]);1 {. B6 c+ }& d
sound(y3, Fs); |
|
IP卡
狗仔卡
发表于 2013-11-6 21:05
转播
淘帖
分享
收藏
支持
反对
微信
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
显身卡
