hi, what version of SGI rat are you using? i use RAT 4.2.12 and the rates in the audio options go from 8 to 48KHz, including both 22 and 44. -gurcharan =========================== Gurcharan S. Khanna, Associate Director Research Computing, Dartmouth College gkhanna@dartmouth.edu office: 603-646-1644 http://research.dartmouth.edu/ http://www.dartmouth.edu/~gkhanna --- Allan Spale wrote: Hello, This is a general RAT question not directly related to AG. Would anyone know why the sample rates of 22 kHz and 44 kHz in RAT (Options > Audio) would appear in the AG version of RAT but not appear in an SGI version of RAT? Would it be possible to specify these settings somehow in this SGI version of RAT? Thanks. Allan EVL@UIC node-op --- end of quote ---