Abstract: An equalized hearing aid system includes a microphone, a first equalizer, a first mixer, and a first speaker coupled in series forming a first signal path with a second mixer coupled to the first equalizer within the first signal path. The microphone, a second equalizer, a third mixer, and a second speaker are coupled in series forming a second signal path with a fourth mixer coupled to the second equalizer within the second signal path. A control interface may be coupled to at least one of the first equalizer and the second equalizer. A Bluetooth module may be coupled to at least one of the first equalizer and the second equalizer. A third equalizer may be coupled to input signal into the first signal path and a fourth equalizer may be coupled to input signal into the second signal path.

Abstract: An equalized hearing aid system includes a microphone, a first equalizer, a first mixer, and a first speaker coupled in series forming a first signal path with a second mixer coupled to the first equalizer within the first signal path. The microphone, a second equalizer, a third mixer, and a second speaker are coupled in series forming a second signal path with a fourth mixer coupled to the second equalizer within the second signal path. A control interface may be coupled to at least one of the first equalizer and the second equalizer. A Bluetooth module may be coupled to at least one of the first equalizer and the second equalizer. A third equalizer may be coupled to input signal into the first signal path and a fourth equalizer may be coupled to input signal into the second signal path.

Abstract: A hearing aid system includes a Bluetooth enabled sound output device and Bluetooth enabled sound output device. The sound output device has a first processor coupled to a first memory, to a first Bluetooth module, to a sound processing module including an amplifier and a speaker, and to a first power supply. The sound input device has an optional aux jack, and a second processer coupled to a second memory, to a second Bluetooth module selectively Bluetooth linkable with the first Bluetooth module, to a sound input module, and to a second power supply. The sound input device may adjust audio volume level of audio signals to a default level before transmission to the sound output device. A second sound input device may transmit audio signals based to the sound input device, from which the audio signals are transmitted to the sound output device.