I tried to patch the this App to the qJACKctl app but
settings console is not straight forward to interpret. as it involved
There is an introductory guide here:
Also, qJACKctl console does not
offer options for very low sampling rates like 8 KHz.
JACK is not typically used below 44.1KHz sample rate, it's a pro audio
tool. Do you have an application that specifically requires low sample