User's Manual - Cornell Lab of Ornithology - Cornell University

Chapter 11: Batch Processingdisplay filter bandwidth and frequency grid resolution values that wouldapply to all of the signals because the input signals may have differentsampling rates. For the same reason, you cannot change the units of the FrameLength field from Points to mS in the batch version of the dialog boxes.Batch spectra are averaged over the entire input signal, using the frameoverlap given in the Batch Spectrum Options dialog box (see Chapter 3 for anexplanation of spectrum averaging).Once you click OK in the options dialog box, spectrogram calculation begins.A status window named “Batch spectrogram” appears that shows theprogress of the calculations. Buttons in the window let you pause or cancel theprocessing.File conversionThe batch file converter reads files saved in any one of the formats that Canarycan read (see Chapter 10), and saves a new copy of each file in a differentfolder in a format that you specify. You tell the file converter what type of dataare contained in the input files using the radio buttons in the file converter’sinput selection dialog box (Figure 11.11). All of the input files must containdata of the same type (e.g., sound data (waveforms), spectrograms, correlationfunctions); the file formats of the input files may differ, however. For example,if the input files contain sound data, some might be saved in Canary format,some in SoundEdit format, and others in MATLAB format. If an input file is aCanary window file containing more than one type of data, the file converteruses only the data of the type specified by the selected radio button.After you specify the input files, a standard batch process output dialog boxappears to let you specify where and in what format to save the convertedfiles, as discussed in the section “Input and output” earlier in this chapter.Each output file generated by the file converter has the same name as theinput file from which it was created. The output folder that you specify mustbe different from the input folder, so that the original input files do not getoverwritten. However, if the output folder already contains a file with thesame name as a file being written by the file converter, it will be overwritten.156 Canary 1.2 User’s Manual