Subfunctions in matlab - string

Question

I have function called Assignment in Matlab with PsychToolBox. This function shows a random color to the paritcipant and require participant to name the color and record this data.
function should return me 2 output as a string
rgb code of the random color like: trial(1).color = [5 5 5]
a matrix which correspond to the sound record.
I write the main functions and color part is okay, but I cannot integrate the recording function into the main function.
in main function I use this string trial.data = recording(1,0,5)
and then I wrote a subfunction named "recording"
function recording (wavfilename, voicetrigger, maxsecs)
bla, bla
end
However, the main function does not recognize the subfunction. Am I doing an logical error? the error message is below
Error: File: assignment.m Line: 40 Column: 27
Unexpected MATLAB expression.
line 40 = trial.data = recording(1,0,5)
function ass8(trial)
Screen('Preference', 'SkipSyncTests', 1)
ListenChar(2);
Screen('HideCursorHelper', 0, 0)
[myWin, rect]=Screen('OpenWindow',0,[128,128,128]);
centerX=rect(3)/2;
centerY=rect(4)/2;
for trial = 1:100
Screen('TextSize', myWin, 30);
Screen('TextFont', myWin, 'Times');
[normBoundsRect, offsetBoundsRect] = Screen('TextBounds',myWin, 'What is the color of the rectangle?');
Screen('DrawText', myWin, 'What is the color of the rectangle?', (centerX-(normBoundsRect(3)/2)),(centerY-(normBoundsRect(4)/2+150)), [0,0,0]);
Screen('Flip', myWin)
WaitSecs(1)% inter stimulus interval
color = randi(255,1,3)
while 1
Screen('FillRect', myWin, color ,[583, 284, 783, 484])
% [ (centerX-100), (centerY-100), (centerX+100),(centerY+100)]);
Screen('Flip', myWin)
WaitSecs(3)
trial.color = color % trial 'ın rengini belirtmesini söyledim
trial.data = reco(1,0 5)% trial'ın ismi 1, kayıt yapacağı süre ise 3 sn
if Waitsecs(3)==1
break; % Terminates the loop if the condition is % satisfied
end
end
pause(.05);
% [clicks, x, y, buttons] = GetClicks(myWin);
%
% buttons=0;
% while ~buttons
% [x, y, buttons] = GetMouse(myWin);
% end
% while 1
% [x,y,buttons] = GetMouse(myWin);
% if ~buttons(1)
% break;
% end
% end
Screen('CloseAll')
end
end
function reco(wavfilename, voicetrigger, maxsecs)
%
% AssertOpenGL;
if nargin < 1
wavfilename = [];
end
if nargin < 2
voicetrigger = [];
end
if isempty(voicetrigger)
voicetrigger = 0;
end
if nargin < 3
maxsecs = [];
end
if isempty(maxsecs)
maxsecs = inf;
end
InitializePsychSound;
freq = 44100;
pahandle = PsychPortAudio('Open', [], 2, 0, freq, 2);
PsychPortAudio('GetAudioData', pahandle, 10);
PsychPortAudio('Start', pahandle, 0, 0, 1);
if voicetrigger > 0
% Yes. Fetch audio data and check against threshold:
level = 0;
% Repeat as long as below trigger-threshold:
while level < voicetrigger
% Fetch current audiodata:
[audiodata offset overflow tCaptureStart] = PsychPortAudio('GetAudioData', pahandle);
% Compute maximum signal amplitude in this chunk of data:
if ~isempty(audiodata)
level = max(abs(audiodata(1,:)));
else
level = 0;
end
% Below trigger-threshold?
if level < voicetrigger
% Wait for a millisecond before next scan:
WaitSecs(0.0001);
end
end
else
% Start with empty sound vector:
recordedaudio = [];
end
s = PsychPortAudio('GetStatus', pahandle)
while ~KbCheck && ((length(recordedaudio) / s.SampleRate) < maxsecs)
% Wait a second...
WaitSecs(1);
% Query current capture status and print it to the Matlab window:
s = PsychPortAudio('GetStatus', pahandle);
% Print it:
fprintf('\n\nAudio capture started, press any key for about 1 second to quit.\n');
fprintf('This is some status output of PsychPortAudio:\n');
disp(s);
% Retrieve pending audio data from the drivers internal ringbuffer:
audiodata = PsychPortAudio('GetAudioData', pahandle);
nrsamples = size(audiodata, 2);
% Plot it, just for the fun of it:
plot(1:nrsamples, audiodata(1,:), 'r', 1:nrsamples, audiodata(2,:), 'b');
drawnow;
% And attach it to our full sound vector:
recordedaudio = [recordedaudio audiodata]; %#ok<AGROW>
end
PsychPortAudio('Stop', pahandle);
audiodata = PsychPortAudio('GetAudioData', pahandle);
recordedaudio = [recordedaudio audiodata];
PsychPortAudio('Close', pahandle);
if ~isempty(wavfilename)
psychwavwrite(transpose(recordedaudio), 44100, 16, wavfilename)
end
fprintf('helal lan!\n');
ListenChar(2);
end