怎样用wavwrite保存chirp产生的数据？

[gjsgjs]

我用chirp函数产生了扫频信号，用sound函数播放，想把chirp产生的数据通过wavwrite保存成.wav文件，会报错，求教是怎么回事，怎么改？
clc;
Fs=8192;
t = 0:1/Fs:1;
y = chirp(t,500,1,3000);
wavwrite(y,Fs,'E:\mm\create');
sound(y,Fs,16);

以上是我的代码
————————————————————————————————
以下是报错的信息：
Warning: Data clipped during write to file:create
> In wavwrite>PCM_Quantize at 293
In wavwrite>write_wavedat at 309
In wavwrite at 138
In Untitled7 at 5