Sound Forge 9, on WIndows 10 ( later I will come to mapper problem)
Forgot how to open multiple tracks for mixing two or more files.
@Jean-Lambert Sound Forge cannot do this. It's for editing individual audio files.
Sound Forge is a multi-channel application primarily for editing and mastering. If you need to mix or record multiple audio tracks (for instance, guitars, keys, vocals, bass and drums), you want a multi-track application (aka, DAW). Acid, Audition, ProTools, Reaper, Samplitude and the free Audacty are popular multi-track options. Vegas Pro video has a substantial multi-track DAW built in, which Sound Forge can be integrated to.
btw, welcome to the Magix Sound Forge users community @Jean-Lambert.
I have COOL Edit that for some unknown reason pop's up with NOT confirgured for your system.
Thanks anyhow. Regards Jean lambert
Adobe acquired Cool Edit Pro from Syntrillium in 2003 and renamed it "Adobe Audition". I believe 'Audition' is currently only available on a subscription basis.
I favored Vegas and Sound Forge over Cool Edit around 1999 for audio work. At that time, Vegas was an audio-only DAW. Video was later added as an option.. the rest is history.