Added comments

sonogram.py

@@ -85,6 +85,26 @@ class Sonogram():
         return diarizationOutput, totalTimeInSeconds, waveformGainAdjusted, sampleRate
 
     def __call__(self,audioPath):
+        '''
+        Processes audio file to generate results necessary for app
+
+        filePath : string
+            Path to the audio file
+
+        Returns
+        --------
+        annotation : pyannote.core.annotation 
+            found here https://pyannote.github.io/pyannote-core/_modules/pyannote/core/annotation.html
+
+        totalTimeInSeconds : int
+            Approximate total seconds of audio file
+
+        waveformGainAdjusted : np.array
+            The waveform of the audio file after equalization
+
+        sampleRate : int
+            The sample rate of the audio file
+        '''
         diarizationOutput, totalTimeInSeconds, waveformGainAdjusted, sampleRate = self.processFile(audioPath)
         annotation = diarizationOutput.speaker_diarization