Links to them can be found in the USB Audio section of the webpage.
!USBScopePlus is an extension of !USBScope. It adds the ability to output various types of user-controlled test waveforms to the Scope + FFT spectrum analysis, etc, facilities. Thus it can be used as a 'test bench' for
checking audio equipment. It is capable of providing 'measurement lab'
quality results given the use of suitable USB Audio ADC/DACs.
!USBAudioProbe scans the computer system and lists the details of any USB
Audio devices it finds. This lets the user discover what abilities their
setup may support. Hence it is useful to determine what sample rates, etc,
they can employ when using the other USB Audio programs.
Note that, alas, not all RO systems currently support USB Audio.