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BHOS Tezisler 2022 17x24sm

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
248

timeAxis=(1:length(Y))/Fs; 

plot(timeAxis, Y); 

xlabel(
'time (seconds)'
); 

title(
'Waveform of the given audio'
); 

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. 

load handel.mat; 

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 



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