What's the best way to record video of Roland EA7 with iPhone?

[Meni]

What's the best way to record video of Roland EA7 with iPhone? (with high quality voice recording)

Thanks

 

[happyrat1]

Use a USB Sound Card attached thru the Lightning Camera Adapter.

 

[trebleclef]

Hi.

I have a Roland BK9 and record videos of my playing.

I record the video with my phone and the audio to a USB flash drive connected to the BK9's USB port. I then sync the audio and video in my editor on my PC.