ODAS Sound Isolation Not Working Well

[dyu2021]

I'm using ODAS running on Pi 3 with Respeaker 6 Mic Array (using Respeaker_6_mic_array config file from Seeed Studio) and was wondering what parameters I can tune to improve the performance of ODAS. Currently, when playing back separated.raw using Audacity, the sound sources for the most part sound identical. For example, I have a speaker playing music and when I try to talk, the resulting channels in separated.raw sound the same, instead of one channel focusing on the music and another on my voice. The channels only start at different times so ODAS does seem to recognize when a new source appears. But when it comes to isolating the sound source and eliminating the background noise, ODAS isn't doing well. What can I do to improve ODAS?