UE4 New Audio Engine Early Access - Modular Synth Presets Part 1

[@martinrivera1686]

Great tutorial!!! Thanks a ton!

[@gameaudioguru8457]

Thank you!

[@TonOfHam]

You are a super hero!

[@gameaudioguru8457]

No You are!

[@citymousefrog]

Thanks for this tutorial. One question, when I use the modular synth I am able to set it up to get sound, but do not see options in the details to choose octaves or waveforms for my oscillators. Could there be a problem using this plugin on a mac platform? Thanks!

[@gameaudioguru8457]

Thank you for the question. I'm so sorry that I don't have an answer for you. I suppose there *could* be a problem using it on macs, but I don't know for sure I'm afraid. Might wanna try on the UE4 audio forums.

[@ArchaicVirus]

So the note input accepts midi notes 1-127? I can only get notes from 63 and up to play for some reason, I can't figure oiut why. Notes 24-63 will not play when feeding into the note_on function

[@gameaudioguru8457]

This is a very interesting problem. Are you still experiencing this? What about notes 1-23? The documentation in the official forums (which I fixed the link for) just says it is a midi note value so it should be 1-127 as you said. 24-63 is a very specific range and makes me think there might be something going on elsewhere in your blueprint.

[@ArchaicVirus]

@@gameaudioguru8457 Well I have made a basic grid/sequencer thingy. Each column of the grid having 72 notes/rows, notes c1-c6. There are 32 columns in the grid, each cell in the grid can be toggled on/off. Its like a basic sequencer program. What I do is dynamically spawn 72 modularSynthComponents on a pawn blueprint, and when you hit play it will loop over each column playing each note that is toggled on in that column, but only b4-b6 make any sound. I have a for loop that creates all the synth components and buttons for the grid. So basically each possible note c1-c6 has its own synth component, but every button in the grid only references one synth component. So for example all the B4 buttons reference the "B4 modular synth"

[@gameaudioguru8457]

@@ArchaicVirus In terms of the missing midi notes though, have you tried bypassing the sequencer and inputting any note between 24 and 63 manually directly into the note on node?

[@ArchaicVirus]

@@gameaudioguru8457 What I dont understand is I only have 1 event on BeginPlay that creates all grid elements and synth components in a for loop. Doesnt make sense how the first 30 or so synth components wont play any notes at all regardless of pitch.

[@ArchaicVirus]

Thanks for your reply. Well let me start over. Technically my problem is that I spawn 72 synthComponents in my pawn blueprint (spawned at beginPlay and automatically attached to the root scene component) I also save them to an array to reference when playing a note. The synth components that represent notes C1-C4 do not play any sounds, even after manually feeding them random notes. Is there maybe a hard limit for attached components? I tried making a new BP that has one synthComponent, and then spawning 72 of those just like before, and same problem.