A noise or vibration detection system includes a clamping device with an audio transducer and a wireless transmitter. The transmitter transmits the audio signal, or a modified version of the audio signal, from the transducer. A mobile device located remote from the transmitter receives the transmitted audio signal for processing. The mobile device includes a receiver configured to receive the audio signal, a display configured as a user interface and to display information to a user, a memory configured to store non-transient machine executable code, and a processor configured to execute the machine executable code stored on the memory. The machine executable code is configured to process the received signal to form an audio signal which is presented to a speaker of the mobile device or a headphone port of the mobile device and also display the audio signal in graphical form on the display.