清空筛选条件
清空筛选条件

Encoding the signal with 14 bits

12 次查看（过去 30 天）
Pat
Pat 2012-9-14
[f1,Fs1] = wavread('bird.wav');
sound(f1, Fs1);
i tried using
D=int14(f1* 8192)
I get error
Undefined function 'int14' for input arguments of type 'double'.
please help

请先登录，再回答此问题。

回答（1 个）

Star Strider
Star Strider 2012-9-14
编辑：Star Strider 2012-9-14
I cannot find any reference to int14 in the online MATLAB documentation. If you want to truncate to 14 bit precision, there are two ways to do it with f1 being defined as a column vector. In my experience, .wav files are read as a [N x 2] matrix (one column for each stereo channel), so you will have to encode each column of f1 as 14-bit integers as separate operations. For column 1:
D = dec2bin( (f1(:,1) * 8192), 14);
or if D results a binary string longer than 14 bits, and since binary numbers are defined as strings:
D = dec2bin(f1(:,1) * 8192);
D = D(:,1:14);
then if you want to:
D = int16(bin2dec(D));
They will all be stored as 16-bit signed integers, but truncated in precision to 14 bits.
  27 个评论
显示 25更早的评论
Walter Roberson
Walter Roberson 2012-9-24
In 16 bit you do not need those manipulations as datatype int16() or uint16() are already the correct size for that purpose.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Discrete Multiresolution Analysis 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by