The shuttle downlinks on 2217.500 Mhz with BPSK at the rate of 1.152 Mbps. There is a half-rate mode (as shown below) for emergency situations. The equipment used is RFSpace SDR-IP, Icom IC-R9500, 1.2m dish with DB6NT S-Band Pre-Amplifier. Software used for decoding is r00t's shuttle decoder.

Audio from various shuttle missions are below (just click appropriate link). Audio is just one component of the overall telemetry that is downlinked.