Techniques used to selectively amplify audio signals are described herein in connection with audio amplification electronic devices, such as hearing aids, including over-the-ear hearing aids. A device and its operation are described to facilitate setting low and high tone/volume controls separately, using at least two selection mechanisms. In one aspect, a first selection mechanism includes a pitch frequency control rocker switch and the second selection mechanism includes a bass frequency control rocker switch disposed separately. In one aspect, the bass frequency control rocker switch causes a processor to bias the frequency response of the sound amplifier for frequencies below 1 kHz. In another aspect, the pitch frequency control rocker switch causes a processor to bias the frequency response of the hearing for frequencies above 1 kHz. In another aspect, the selection mechanism involves the separate attenuation of treble and bass adjustments in response to a user selection of a rocker switch setting for each adjustment.

An active electrode has an electrode for sensing an electric potential and generating an input signal, and a shield placed near the electrode but being electric insulated from the electrode. An integrated amplifier (10) has an input connected to the at least one electrode for receiving the input signal, and providing a buffered path outputting a buffered output signal. The shield being connected to the output of the integrated amplifier to actively drive the electrical potential of the shield, thereby providing an active shielding of the electrode. The buffered path includes a first mixer (11) in front of the integrated amplifier for frequency shifting the input signal from a basic frequency range to a higher frequency range, and a second mixer (12) on the output of the integrated amplifier for frequency shifting the amplified signal from the higher frequency range back to the basic frequency range. The active electrode may be used for recording EEG signals.

An apparatus includes a headphone driver and a processor in communication with the headphone driver. The processor is configured to receive an audio setting selection from among a plurality of audio setting selections. Each audio setting selection is associated with a frequency range that includes at least one frequency that is outside of a range of human hearing. The processor is further configured to receive an audio signal and to process the audio signal according to the selected audio setting selection to generate an output signal. The processor is configured to provide an output signal to the headphone driver.

There is provided a system comprising a first device for neural stimulation of a cochlea of a patient's ipsilateral ear; a second hearing stimulation device selected from the group consisting of a device for neural stimulation of the cochlea of the patient's contralateral ear, a device for acoustic stimulation of the patient's ipsilateral ear and a device for acoustic stimulation of the patient's contralateral ear and comprising means for stimulation of the respective ear; and a fitting device for adjusting at least one of the first stimulation device and the second stimulation device according to a response of the patient to combined stimulation by the first stimulation device and the second stimulation device.

The assistive hearing device implementations described herein assist hearing impaired users of the device by using automated speech transcription to generate text representing speech received in audio signals which can then be read in a synthesized voice tailored to overcome a user's hearing deficiencies. A speech recognition engine recognizes speech in received audio and converts the speech of the received audio to text. Once the speech is converted to text, a text-to-speech engine can convert the text to synthesized speech that can be enhanced and output in a voice that compensates for the hearing loss profiles of a user of the assistive hearing device. By transcribing received speech into text the assistive hearing device implementations described herein eliminate background noise from the audio signal. By converting the transcribed text into a synthesized voice that is easier to understand to hearing impaired persons, their hearing deficiencies can be remedied.

An audio processing apparatus includes a preprocessor which extracts a voice-band signal from a first electric signal, and outputs a first output signal containing the voice-band signal; a first controller which generates a first amplification coefficient for multiplying with the first output signal to compress a dynamic range of an intensity of the first output signal, and generates a first modified amplification coefficient by smoothing the first amplification coefficient with a first time constant; and a first multiplier which multiplies the first modified amplification coefficient and the first output signal. The first time constant is a first rise time constant when the intensity increases, and is a first decay time constant when the intensity decreases. The first rise time constant is not less than a temporal resolution of hearing of a hearing-impaired person, and is less than a duration time of sound which induces recruitment in the hearing-impaired person.

Disclosed herein are method, system, and computer program product embodiments for performing the continuous tuning of received audio input from an earpiece or microphone especially customized for karaoke singing, wherein the audio input may be mixed with user-selected song input, and the joint mixed input is independently altered in the frequency domain for output to an earpiece worn by a user as well as separately for an additional audio output to an external connected speaker, for an optimal karaoke experience.

A method of operating a hearing aid system and a hearing aid system adapted to carry out said method, wherein said hearing aid system comprises a hearing aid (400).

A method of operating a hearing aid system and a hearing aid system adapted to carry out said method, wherein said hearing aid system comprises a hearing aid (700).

A hearing loss correction system which is mobile compatible and comprises of a mechanism, wherein the mobile device module when in the OFF condition is used as a hearing assistive and amplification device. The hearing loss correction system comprises a microphone unit, a speaker unit and a mobile phone inbuilt application processor to operatively connect the microphone unit with the speaker unit for recording environmental sound signal though the microphone unit and storage free direct streaming of said recorded sound signal to the speaker unit upon real time amplification and background noise suppression.