THE 3 rd INTERNATIONAL SCIENTIFIC CONFERENCES OF STUDENTS AND YOUNG RESEARCHERS dedicated to the 99
th
anniversary of the National Leader of Azerbaijan Heydar Aliyev
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3
timeAxis=(1:length(Y))/Fs;
4
plot(timeAxis, Y);
5
xlabel(
'time (seconds)'
);
6
title(
'Waveform of the given audio'
);
7
sound(Y, Fs);
Despite the fact that wavread was utilized in many legacy systems,
Mathworks has replaced it with the more versatile audioread function.
Audioread is similar to wavread in that it can read a significantly larger
number of audio file types (WAVE (.wav), OGG (.ogg), FLAC (.flac), AIFF
(.aiff,.aif), AU (.au), and AIFC (.aifc)).
Audiowrite, on the other hand, is used to save audio data to a file. The
following code demonstrates how to save data from one of Matlab's built-in
audio.mat files to a file.
1
load handel.mat;
2
audiowrite(
'handel.wav'
,y,Fs);
Overall, Matlab functions are useful when it comes to audio and speech
processing and signal analysis.
References [1] Audio and speech processing, Paul R. Hill, First edition
DESIGN OF FLOW CONTROL LOOP BY CONTROL VALVE AT BHOS EMERSON TEST RIG Yagut Badalova Baku Higher Oil School Baku, Azerbaijan yagut.badalova.std@bhos.edu.az Supervisor: Ph.D, Associate Professor Erkin Ibragimov Keywords: Flow Control Loop, Control Valve, PID controller, Variable Frequency Drive
A proper flow control loop is essential part of many industrial applications
in order to ensure health and safety, product quality, and cost efficiency. Poor
quality flow control can increase the risk of disastrous events that can result
in loss of profit, damage to equipment, and, in more severe cases, be fatal
to human life and environment. To ensure proper control of process flow,
control loop elements must be carefully selected and configured so as to
meet the requirements of the application concerned.
Flow control can be implemented through flow control loop consisting of
flow transmitter, controller, and control valve as a final control element. The
loop starts with transmitter measuring the flow rate of the process fluid
