trim-length
                                                    Specifies the length of audio trimmed from the end of the recording after the STOP.
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                                                                     Value  | 
                                                                
                                                                     Integer: 0–INT_MAX (milliseconds) DEFAULT: 0  | 
                                                            
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                                                                     How to set  | 
                                                                
                                                                     In the browser, using the Trim-Length header in a RECORD method. For the recorder—In the application’s session.xml, in the <speechrecord> section of <speechserver> under <sessionparameters>.  | 
                                                            
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                                                                     Usage  | 
                                                                
                                                                     Rarely changed.  |