Abstract: The present arrangements relate to a microphone boom assembly. A first microphone can be positioned proximate to a first aperture defined in a first side of the microphone boom through which acoustic signals propagate to the first microphone, and a second microphone can be positioned proximate to a second aperture defined in a second side of the microphone through which the acoustic signals propagate to the second microphone. The first microphone can be connected to a first side of a flexible printed circuit at a first location and the second microphone connected to a second side of the flexible printed circuit at a second location, the flexible printed circuit mounted into the microphone boom with a bend in the flexible printed circuit positioned between the first location and the second location.

Abstract: The present arrangements relate to a microphone boom assembly. A first microphone can be positioned proximate to a first aperture defined in a first side of the microphone boom through which acoustic signals propagate to the first microphone, and a second microphone can be positioned proximate to a second aperture defined in a second side of the microphone through which the acoustic signals propagate to the second microphone. The first microphone can be connected to a first side of a flexible printed circuit at a first location and the second microphone connected to a second side of the flexible printed circuit at a second location, the flexible printed circuit mounted into the microphone boom with a bend in the flexible printed circuit positioned between the first location and the second location.

Abstract: The embodiments of the invention concern a method (400) and system (100) for modeling transducer non-linearities. The method can include converting (402) a transducer signal to a displacement signal that is proportional to a transducer cone displacement, and applying (404) a correction to the displacement signal. The transducer signal can be one of an input signal to the transducer (102) or an acoustic output signal of the transducer. The method can account for at least one mechanical transducer non-linearity which can be a cone excursion, a diaphragm stiffness, or a diaphragm displacement. The method can account for at least one acoustic transducer non-linearity which can account for an acoustic jetting out of a port. The system can further include a sensor coupled to said transducer for physically measuring a cone displacement.

Abstract: The invention concerns a method (500) and system (100) for suppressing receiver audio regeneration. The method (500) includes the steps of receiving a communication signal (502), at a Radio Frequency (RF) unit (102), demodulating the communication signal to an audio signal (504), monitoring a volume level of the audio signal (506), and shifting the pitch of the audio signal when the volume level reaches a predetermined threshold (508), and playing the pitch-shifted audio signal out of a speaker to produce a pitch-shifted acoustic signal (510). The method can shift the pitch of the audio signal to produce a pitch-shifted acoustic signal with signal properties suppressing regeneration of the acoustic signal onto the audio signal at the RF unit. The amount of pitch-shifting can be a function of the volume level.

Abstract: A speaker (100) having a diagnostic capability, as well as a circuit (101) and related methods (500) for performing speaker diagnostics based upon a driving-point impedance are provided. The speaker includes a flexible cone (104) and a voice coil (106) connected to the flexible cone for driving the flexible cone so as to convert electrical signals into sound. The speaker also includes a signal source (110) connected to the voice coil for supplying a test signal to the voice coil. The speaker further includes a signal sensor (112) electrically connected to the voice coil for sensing a response signal occurring in response to the test signal. Additionally, the speaker includes a condition determining module (114) for determining a driving-point impedance based upon the response signal and for comparing the driving-point impedance to a predetermined impedance to thereby determine a condition of the speaker.

Abstract: A communication device (100) is provided with a technique (400) for self-diagnosing an air leak. The leak is determined without having to open the communication device by applying a temporary excitation signal to the speaker terminals (402) to produce a damped response (404) and then monitoring the damped response (406) of the speaker.