Open Hardware Multichannel Sound Interface for Hearing Aid Research on BeagleBone Black with openMHA: Cape4all

Tobias Herzke, Hendrik Kayser, Christopher Seifert, Paul Maanen, Christopher Obbard, Guillermo Payá-Vayá, Holger Blume and Volker Hohmann

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The paper describes a new multichannel sound interface for the
BeagleBone Black, "Cape4all".
The sound interface has 6 input channels with optional microphone
pre-amplifiers and between 4 and 6 output channels.
The multichannel sound extension cape for the BeagleBone
Black is designed and produced.
An ALSA driver is written for it.
It is used with the openMHA hearing aid research software to perform
hearing aid signal processing on the BeagleBone Black with a
customized Debian distribution tailored to real-time audio signal processing.

The paper describes a new multichannel sound interface for the
BeagleBone Black, "Cape4all".
The sound interface has 6 input channels with optional microphone
pre-amplifiers and between 4 and 6 output channels.
The multichannel sound extension cape for the BeagleBone
Black is designed and produced.
An ALSA driver is written for it.
It is used with the openMHA hearing aid research software to perform
hearing aid signal processing on the BeagleBone Black with a
customized Debian distribution tailored to real-time audio signal processing.

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