You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: RealTimeAudioProcessor.m
    path of file: ./repos/HRTF-Individualization/model/matlabcode/functions/library/RealTimeAudioProcessor
    
    the code of the file until where you have to start completion: % RealTimeAudioProcessor
%
% The RealTimeAudioProcessor object allows the user to process consecutive
% frames of audio in real-time (it lags real-time by the frame size plus 
% hardware overhead). The object can easily be extended for any type of
% audio processing by overloading the stepImpl method in a derived class.
%
% Use:
%
% % Create the processor with a number of input channels, number of output
% % channels, sample rate, frame size, and devic
    
function Analyze(rtap)
            fprintf(['Results for last play:\n', ...
                     'Maximum input step time:   %5.1fms\n', ...
                     'Maximum process step time: %5.1fms\n', ...
                     'Maximum output step time:  %5.1fms\n'], ...
                    1000*rtap.max_in_step_time, ...  
                    1000*rtap.max_process_step_time, ...  
                    1000*rtap.max_out_step_time);
        end
        
    end
    
    methods (Access = protected)

        % Set up the internal System Objects and the figure.
        function setupImpl(rtap, ~, ~)

            % Create the AudioPlayer.
            if rtap.out_channels > 0
                
                rtap.ap = dsp.AudioPlayer(...
                    'DeviceName',       rtap.device_name, ...
                    'BufferSizeSource', 'Property', ...
                    'BufferSize',       rtap.frame_size, ...
                    'QueueDuration',    0, ...
                    'SampleRate',       rtap.sample_rate);
                
                
                % Start with silence. This initializes the AudioPlayer to
                % the window size and number of channels and takes longer
                % than any subsequent call will take.
                step(rtap.ap, zeros(rtap.frame_size, rtap.out_channels));

            end
            
            % Create the AudioRecorder (if requested).
            if rtap.in_channels > 0
                
                rtap.ar = dsp.AudioRecorder(...
                    'DeviceName',       'Default', ...
                    'SampleRate',       rtap.sample_rate, ...
                    'BufferSizeSource', 'Property', ...
                    'BufferSize',       rtap.frame_size, ...
                    'SamplesPerFrame',  rtap.frame_size, ...
                    'QueueDuration',    0, ...
                    'OutputDataType',   'double', ...
                    'NumChannels',      rtap.in_channels);
                
                % Initialize the input.
                step(rtap.ar);
            
            end
            
            if ishandle(rtap.figure_handle)
                close(rtap.figure_handle);
            end
            rtap.GenerateFigure();
            
            % Draw it.
            drawnow();
            
            % Chill out for a second before rushing forward with sound.
            pause(rtap.time_step);
            
        end
        
        % Process one frame of audio, given the inputs corresponding to the
        % frame and the times.
        function out = stepImpl(rtap, time, in) %#ok<INUSD>
            out = zeros(rtap.frame_size, rtap.out_channels);
        end