Hi John,
If you need a lot of configuration in decoding and playing audio, you might try using the HDSDR (software radio) application with our hardware. This is a free software application which is compatible with our analyzers. Check out the capabilities of the software here, http://www.hdsdr.de. We provide the necessary documentation and files for interfacing the software, which is found on our download pages. The SA44B will be capable of tuning and decoding audio across its full operating frequency range, 1Hz to 4.4GHz. The BB60C is limited to a lower frequency of around 20MHz.
If you have any further questions, please let me know.
Regards,
A.J.
