Question: Can any of the ISP modules support Audio via BLE ?
Answer: Please have a look here :
https://www.nordicsemi.com/eng/Products/Nordic-Thingy-52
Nordic offers the source code for this audio demo. This is compatible with nRF52 series, so with our ISP1507 module, and the future ISP1807.
We have tested the demo with our dev kit and confirmed it works well.