There are two big issues that are affecting video creation right now.
1. At the very beginning, there is always a random note that gets pressed and sustained for several measures, or perhaps until the note gets played by the MIDI file itself. It has the light and sparks, but no note is there because it's not part of the MIDI. I think someone else described this problem too but it clearly wasn't fixed on Windows version 1.2.
2. At the beginning, the video randomly speeds up. The first few measures are fine, but then it speeds up out of nowhere.
This is what the render dialog tells me about the video (4:20 length): https://drive.google.com/open?id=1flCa55zJCY_RL1C9m9hmp5NUhaoqwBIv
This is the video that was generated (2:55 length with the glitchy note at the beginning): https://drive.google.com/open?id=1Y6xuJtqrIDO58N6XR-uD9HFhLr7ONc89
For some reason, a very small, unusable WAV file gets generated with every video.
The note misalignment is still very slight but not bad enough to be an issue for me. Also, I noticed that it saved my settings when I used 1.2 after using 1.1. Was this supposed to happen?
The issues with rendering should now be solved in Version 1.5. Sorry for these issues!
I'm not able to replicate this issue on either of my computers, Mac or Windows...
I agree that what's happening is likely that your computer is unable to render at the speed that the app is expecting. The solution would probably be to decrease the Render Framerate to 5, 2, or 1 frames per second in the Video Creation Options.
Could you give that a try and see if that solves the issue on your computer?
(If that render speed seems really slow, please keep in mind videos with these many effects are usually created in After Effects, and take about 1-3 hours to render a single minute of footage...)
The speed problem is definitely related to rendering. I rendered it at 30 FPS and it's still too fast, but no as much as before. An issue I noticed in regular playback is that it's unable to get even close to 60 FPS even when I set it to that, so the speed issue might be the program accidentally over-compensating to get a higher framerate on the renderings. Anyway, the software seems unable to render at the correct speed right now.
Here's the video at 30 FPS: https://drive.google.com/open?id=1oKDapsJqqBmzLOP-OD0UpJpiAQrVB3Es
Here is the MIDI file: https://drive.google.com/open?id=14vpzqkpI3jxQOAh9yxj3fGGpnPPTlPFg
The WAV file isn't usable because the size is 44 bytes. Just bytes. So it almost doesn't exist. It's not a problem for me because I always replace the audio on the final videos. This is the file it gave me: https://drive.google.com/open?id=1NuIPYN-XT7J9XnigqHZ4O8HwpLABmyqo
I have no idea if rendering affected the speed problem. I couldn't really tell even at the fastest render frame rate. Does the rendering frame rate affect quality at all?
Also, It's hard to scroll through the song menu without a scrollbar. It still uses the swipe mechanic that most computers don't use.
I found out when you click render, the position you click will play a note on the keyboard. I'm not sure if this is what you found about the random notes.
Thanks for letting me know about these issues!
1. For the glitchy note, could you please attach the MIDI file to this post, so that I can check and see if there's anything going on there?
2. For the video speeding up - does this happen in the app as it is rendering the video? (Can you notice the speed-up while it is rendering?). Or does the speed-up only show up in the rendered video?
3. For the WAV file - this is intentional - it should be usable - are you sure that it's not?
Are you hearing audio inside the app? Are you just using a MIDI file in your piece, or did you also custom import an audio file?
Right now, there is a bug in the Windows 10 Media Foundation that makes it impossible for me to combine the video and audio inside the app. Until Microsoft fixes the bug, users will need to combine the MP4 video render and the WAV audio renders outside the app. I recognize that's not ideal, but there's no way for me to fix the issue on my end. (It's also honestly not all that difficult to drop an audio and video clip onto a timeline in a video editor.)