andimb/virtualchoir

Automatically sync, mix and draw virtual choir videos from raw tracks of individual recordings. You don't need video editing skills or additional software. You need sample files (audio or video) for each part (soprano, alto, ...), that are already in sync like mp3 exports of a midi file.

VirtualChoir

Deutsch

VirtualChoir is a program based on the Netbeans Platform and thus on Java to create split-screen videos for virtual choirs easily, quickly and without any prior knowledge.

Software and Libraries

• FFmpeg - encoding of the individual clips and rendering of the entire video
• Praat - Determination of the offset of the individual clips concerning the master file (syncing)
• vlcj - Play the videos

Features

• any number of parts, e.g. soprano, alto, ...
• any number of videos/clips
• automatic synchronization of the individual clips with regard to the part master
• different video codecs can be used
• all raw data are available for manual processing after the video has been created

Requirements

• Video clips of the individual singers with audio, which can be read with FFmpeg, with an assignment to the part
• one master file for each voice group (video + audio or audio only), whereby the master files must be synchronized with each other, e.g. an MP3 export of each voice from the sheet music

How to

1. Download the ZIP file

• Windows
• Linux

2. Open the Program

• Excelcutable in the "bin" directory

3. Create a new virtual choir by left-clicking on the button

4. Add new voices by right-clicking on the parts

5. With a right click on the respective part, add the master files and the individual video clips

6. Adjust the start and end of the relevant part in the master files

7. Start split screen video generation with a right click on "Virtual Choir"

8. Specify the output directory and the desired setting

Alternatives

https://docs.google.com/document/d/1QK-PVHsBMGDT5RCx258rMFw1Aww4yGV8YkmHjXPrrsc/edit