Der "can you hear the kick drum?" Sorry I keep assuming when I see "volca" it's the Beats as that's the one I have. The machines are all the same with respects to how the run on MIDI, so all MIDI infos are applicable to all machines.
I can actually start and stop the volca using the play button on Bsp.
After clearing all steps inside the volca sequencer i write some on bsp and press play. I do see the sequence running on both devices but no sound coming out from the volca
Ah, okay, more information. Sounds like you might not have the Volca on the channel you are sending it. Check the channel you Volca is set to and change it to match the channel you are sending from the BSP.
[Why I'm not loving Korg so much these days]
I do know that my Volca Beats really really doesn't like MIDI being sent to it on any channel besides the one it's set to. What I found is with the Volca set to ch10 and it receiving data on ch5 also, it was randomly changing it's stutter depth and start to drop notes, eventually not playing a single note. I've only noticed this in internal MIDI mode, when the machine is set to Auto, I never noticed it foul up like that. Then again, I wasn't really using it too much in Auto mode as due to it not have a pattern chain/song mode.
I am pretty much ready to sell the thing because of this. The sounds are not so good as to persevere with it dropping notes when it receives data on more than just channel 10. If I didn't have the MIDI routing options I do, it would have taken a non-stop one-way flight into the wall last week, with no travel insurance.