# External input & output blending **URL:** \ **Category:** Videosync\ **Created:** [May 8, 2024, 7:57am UTC](https://forum.showsync.com/t/external-input-output-blending/1693 "2024-05-08T07:57:18Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Dave](https://forum.showsync.com/user_avatar/forum.showsync.com/dave/32/1028_2.png) [@Dave](https://forum.showsync.com/u/Dave)\ **Post date:** [May 8, 2024, 7:57am UTC](https://forum.showsync.com/t/external-input-output-blending/1693/1 "2024-05-08T07:57:18Z")
Hi, I’m trying to get the video output of a Max4Life device (L-Scope audio to image generator) into the Videosync window. Can someone explain to me how I can do this, please? I’m not seeing anything in the external input (syphon). I want to convert the sounds of an acoustic piano into Lissajous graphics and merge them with the video output. Please help! ---
**Author:** ![Jean-Paul](https://forum.showsync.com/user_avatar/forum.showsync.com/jean-paul/32/1898_2.png) [@Jean-Paul](https://forum.showsync.com/u/Jean-Paul)\ **Post date:** [May 11, 2024, 9:08am UTC](https://forum.showsync.com/t/external-input-output-blending/1693/2 "2024-05-11T09:08:48Z")
Hey Dave, welcome to the forum! I can imagine that the L-Scope device does not have a built-in Syphon output, which would be why it does not appear in the External In device. So it’s really just a standalone device, and it has no relation to Videosync. You could try to implement the Syphon output yourself; a similar question was asked in [this topic](https://forum.showsync.com/t/jit-gl-and-videosync/1672) not too long ago. ---
**Author:** ![Dave](https://forum.showsync.com/user_avatar/forum.showsync.com/dave/32/1028_2.png) [@Dave](https://forum.showsync.com/u/Dave)\ **Post date:** [May 17, 2024, 12:34pm UTC](https://forum.showsync.com/t/external-input-output-blending/1693/3 "2024-05-17T12:34:33Z")
Thank you, I will try doing that…