Low-latency audio over IP on embedded systems

Florian Meier, Udo Zölzer, TUHH Universitätsbibliothek, TUHH Universitätsbibliothek
Transmission of audio data over networks, such as the Internet, is a widespread technology. Up to now, the primary application is voice transmission (Voice over IP). Although modern Voice over IP systems are designed to reduce the audio latency, it is still too high for the bidirectional transmission of live music. The construction of a low-latency music environment would enable distributed musical performances and "Jamming over IP". This thesis takes a step in this direction by building an
more » ... by building an Audio over IP system as an embedded system. All components needed for a jamming session over the Internet are integrated in a handy box on the basis of a Raspberry Pi. This required the development of a Linux kernel driver. Furthermore, a software for low-latency audio transmission is build and evaluated, considering audio quality, data rate, and the reduced computational power of the embedded system.
doi:10.15480/882.1643 fatcat:wkwsj5gmpjeqbjp2sayap7gmmm