Abstract: An audio device for improved talker discrimination is provided. To improve suppression of close talker interference, i.e., of a person talking in close proximity to the user of the audio device, the audio device comprises at least an audio input to receive a voice input signal; a filter bank, configured to provide a plurality of sub-band signals from the voice input signal; a multi-band audio expander, arranged to receive at least a group of the sub-band signals and configured to conduct audio expansion on the group of sub-band signals to provide gain-controlled sub-band signals; and an audio output, configured to provide a voice output signal from at least the gain-controlled sub-band signals.

Abstract: An audio device for improved talker discrimination is provided. To improve suppression of close talker interference, the audio device comprises at least a first and a second audio input to receive a first and second voice input signal; a first filter bank, configured to provide a plurality of first sub-band signals; a second filter bank, configured to provide a plurality of second sub-band signals; a correlator, configured to determine at least one signal correlation between at least a group of the first sub-band signals and at least a group of the second sub-band signals; and an attenuator, arranged to receive at least the group of the first sub-band signals and configured to conduct signal attenuation on the group of the first sub-band signals to provide gain-controlled sub-band signals, wherein the signal attenuation is based on the determined at least one signal correlation.

Abstract: A headset implements an earloop microphone and includes a housing. An earloop of the headset secures the headset to an ear of a user. A first microphone is acoustically coupled to a first opening in the housing. A second microphone is acoustically coupled to a second opening in the housing. A third microphone is acoustically coupled to a third opening in the earloop.

Abstract: A headset implements an earloop microphone and includes a housing. An earloop of the headset secures the headset to an ear of a user. A first microphone is acoustically coupled to a first opening in the housing. A second microphone is acoustically coupled to a second opening in the housing. A third microphone is acoustically coupled to a third opening in the earloop.

Abstract: An audio device for improved talker discrimination is provided. To improve suppression of close talker interference, i.e., of a person talking in close proximity to the user of the audio device, the audio device comprises at least an audio input to receive a voice input signal; a filter bank, configured to provide a plurality of sub-band signals from the voice input signal; a multi-band audio expander, arranged to receive at least a group of the sub-band signals and configured to conduct audio expansion on the group of sub-band signals to provide gain-controlled sub-band signals; and an audio output, configured to provide a voice output signal from at least the gain-controlled sub-band signals.

Abstract: An audio device for improved talker discrimination is provided. To improve suppression of close talker interference, i.e., of a person talking in close proximity to the user of the audio device, the audio device comprises at least an audio input to receive a voice input signal; a filter bank, configured to provide a plurality of sub-band signals from the voice input signal; a multi-band audio expander, arranged to receive at least a group of the sub-band signals and configured to conduct audio expansion on the group of sub-band signals to provide gain-controlled sub-band signals; and an audio output, configured to provide a voice output signal from at least the gain-controlled sub-band signals.

Abstract: An audio device for improved talker discrimination is provided. To improve suppression of close talker interference, the audio device comprises at least a first and a second audio input to receive a first and second voice input signal; a first filter bank, configured to provide a plurality of first sub-band signals; a second filter bank, configured to provide a plurality of second sub-band signals; a correlator, configured to determine at least one signal correlation between at least a group of the first sub-band signals and at least a group of the second sub-band signals; and an attenuator, arranged to receive at least the group of the first sub-band signals and configured to conduct signal attenuation on the group of the first sub-band signals to provide gain-controlled sub-band signals, wherein the signal attenuation is based on the determined at least one signal correlation.

Abstract: Methods and apparatuses for user sound exposure limiting are disclosed. In one example, an accumulated sound dose exposure from a headset speaker is determined for a plurality of sequentially monitored time intervals during a current listening session, wherein the current listening session comprises a total session time. It is determined whether a predicted sound dose exposure for the total session time exceeds or falls below a permitted sound dose exposure limit, the predicted sound dose exposure determined from the accumulated sound dose exposure. A threshold intervention level at which a time-weighted-average limiter at a headset applies attenuation to an audio signal output at a headset speaker is adjusted.

Abstract: Methods and apparatuses for user sound exposure limiting are disclosed. In one example, an accumulated sound dose exposure from a headset speaker is determined for a plurality of sequentially monitored time intervals during a current listening session, wherein the current listening session comprises a total session time. It is determined whether a predicted sound dose exposure for the total session time exceeds or falls below a permitted sound dose exposure limit, the predicted sound dose exposure determined from the accumulated sound dose exposure. A threshold intervention level at which a time-weighted-average limiter at a headset applies attenuation to an audio signal output at a headset speaker is adjusted.

Abstract: Systems and methods for a headset adapter circuit are disclosed. The headset adapter circuit generally includes a maximal length sequence generator circuit coupled to the adapter transmit signal line for injecting a maximal length sequence signal. A maximal length sequence cross-correlator circuit is coupled to the adapter receive signal line for capturing a receive signal sample and convolving the receive signal sample with the maximal length sequence signal to generate a host phone sidetone path impulse response.

Abstract: A method of enhancing the intelligibility of speech sounds in a communications headset, includes: detecting an incoming signal with speech content; based upon detectable parameters in the incoming signal, determining a combination of signal processing parameters including a high pass cutoff frequency value and a low pass cutoff frequency value for a filtering function, and an expander threshold level, an expander attack time, and an expander release time for an expander function; and sequentially applying the filtering function and expander function to the incoming signal so that the degraded sound quality of the incoming signal may be modified real-time to increase intelligibility as variations occur in speech sound quality of the incoming signal.

Abstract: A transaction card design creation apparatus comprising: a processor for generating a first user interface configured to enable creation of a product type transaction card design for application to a transaction card, and storing the product type transaction card design in a first storage device; and a processor for generating a second user interface configured to enable creation of a transaction card design comprising the product type transaction card design and at least one image, and storing the transaction card design in a second storage device.

Abstract: The present invention provides an echo reduction apparatus, system, and method that advantageously reduces echo when communicating over packet-switched networks. An echo reduction apparatus, including echo reduction circuit, operably couples a headset or handset device to an audio source that is capable of transmitting a sound signal. The echo reduction circuit receives the sound signal from the audio source and a transmit signal from the headset or handset device and provides an adjusted sound signal to the audio source. Advantageously, a variety of headsets and handsets may be used in accordance with the present invention with reduced caller echo and without the need to purchase new headsets or handsets.

Abstract: Sound pressure level limiter with anti-startle feature for audio systems are disclosed. The anti-startle feature may be implemented with a delta incident detector for detecting delta acoustic incidents that exceed a predetermined acoustic startle boundary, a delta limiter for determining an anti-startle gain, and an amplifier to apply the anti-startle gain to the input signal. The delta incident detector may detect delta incidents based on an estimated true SPL delivered by a transducer to a predetermined datum point. The estimated true SPL may be determined by based on a measured receiving frequency response of the transducer. An SPL limiter may also determine an SPL gain in response to detecting an SPL acoustic incident that exceeds a predetermined SPL threshold, and an amplifier may apply the SPL gain to the input signal to reduce it below the threshold.

Abstract: The present invention provides an echo reduction apparatus, system, and method that advantageously reduces echo when communicating over packet-switched networks. An echo reduction apparatus, including echo reduction circuit, operably couples a headset or handset device to an audio source that is capable of transmitting a sound signal. The echo reduction circuit receives the sound signal from the audio source and a transmit signal from the headset or handset device and provides an adjusted sound signal to the audio source. Advantageously, a variety of headsets and handsets may be used in accordance with the present invention with reduced caller echo and without the need to purchase new headsets or handsets.