  Microphone array techniques can improve the acoustic sensing performance on
drones, compared to the use of a single microphone. However, multichannel sound
acquisition systems are not available in current commercial drone platforms. To
encourage the research in drone audition, we present an embedded sound
acquisition and recording system with eight microphones and a multichannel
sound recorder mounted on a quadcopter. In addition to recording and storing
locally the sound from multiple microphones simultaneously, the embedded system
can connect wirelessly to a remote terminal to transfer audio files for further
processing. This will be the first stage towards creating a fully embedded
solution for drone audition. We present experimental results obtained by
state-of-the-art drone audition algorithms applied to the sound recorded by the
embedded system.
