One of the multichannel A/D devices checked by the HARK development team is radio RASP, one of the RASP series made by System In Frontier, Inc. in HARK.
Figure 8.1 shows an overview of the radio RASP. Radio RASP is a multichannel A/D, D/A conversion device that performs only 16ch AD and 2ch D/A conversions. It transmits and receives commands via TCP/IP and transmits and receives settings and data of A/D and D/A conversion processing from a host PC. It is a good filter of sampling frequencies and its analog input parts can be changed easily using software. The methods of installing radio RASP and of recording speech from microphones connected to radio RASP on HARK are introduced here. It is described and its operations are checked in Ubuntu 9.10.
Connect radio RASP to a PC (connection of hardware)
Install and set the software for radio RASP
Record test on HARK with radio RASP (use from HARK)