I have found x2 application that fits the above category:
1] Very old 16-bit application but you can run it using opensource emulator otvdm (on github)
https://imgur.com/a/aO7ZgXR
2] A modern application by university de Valencia. Allievi you can download requires free registration
https://www.ita.upv.es/software/presentacion-en.php
Now the problem is that the 1st application I cannot get in touch with its author because I have no sample file & its help manual is limited
Second application has video tutorials but all in Spanish! Plus it also doesn't come with any sample files. Fortunately the application interface & PDF manual is in English
So if someone can help me with sample files for each application I be grateful.
PS: I cannot translate Spanish videos at YouTube CC (caption option) is unavailable:
https://www.youtube.com/channel/UCtoKZknavNszsAs_2uSge0Q