I released a new version of CasualConc (4.0.0), which is still in beta.
This version can create a multimedia corpus in Regular - Database mode.
First, you need to create a CasualTranscriber-formatted text with time stamps. A new version of CasualTranscriber is just released along with CasualConc. It uses WhisperKit to automatically transcribe audio/video files and create CasualTranscriber-formatted Rich Text Files (CT RTFs).
Then, in Regular - Database mode, create a database file with CT RTFs.
In Concord, you can play the clip of the concordance line as well as the entire media file of the selected concordance line.
Now CasualConc comes with a simple database editor to fix mistranscriptions.
Additional Enhancement
Stanford CoreNLP installer
Enhanced MeCab installer