How to make a unit energy signal?

4 次查看（过去 30 天）
Jaya Sodhani
Jaya Sodhani 2022-7-5
回答： Chunru 2022-7-5
y=audioread('speech.wav');
subplot(2,3,1);
plot(y);
xlabel('Samples');
ylabel('Magnitude');
title('Original speech signal');
%adding awgn noise
x=awgn(y,5);
z=y+x;
%sound(z);
subplot(2,3,2);
plot(z);
xlabel('Samples');
ylabel('Magnitude');
title('Noise added to speech signal');
The amplitude of signal 'z' is greater than 1. I want to make it a unit enegry signal. How can i make it?

请先登录，再回答此问题。

采纳的回答

Chunru
Chunru 2022-7-5
Ran in:
%y=audioread('speech.wav');
y = rand(1000, 1);
subplot(2,3,1);
plot(y);
xlabel('Samples');
ylabel('Magnitude');
title('Original speech signal');
%adding awgn noise
x=awgn(y,5);
z=y+x;
% Normalize into [-1 1] (not unit energy)
z = z / max(abs(z));
%sound(z);
subplot(2,3,2);
plot(z);
xlabel('Samples');
ylabel('Magnitude');
title('Noise added to speech signal');

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Propagation and Channel Models 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by