play_noise.m

figure(3)
handles3=guidata(gcf);
channels=get(handles3.channels_popup,'String');
ck=get(handles3.channels_popup,'Value');
channel=channels{ck};

cal_wav='noise_0dB.wav';

[x,fs]=audioread(cal_wav);

z=zeros(size(x));
if strcmpi(channel,'Left')
    y=[x,z];
elseif strcmpi(channel,'Right')
    y=[z,x];
elseif strcmpi(channel,'Both')
    y=[x,x];
end

set(handles3.play_noise_pb,'Enable','off')
set(handles3.play_tone_pb,'Enable','off')
set(handles3.stop_playback_pb,'Enable','on')
set(handles3.calibration_status,'String','Playing')

% playback
p=audioplayer(y,fs);
play(p);
playblocking(p);

clearvars -except p