You may need to install older DirectX runtimes to get the audio drivers to communicate correctly with your hardware.
While not free, Reaper has an indefinite trial period and a very low entry cost, offering performance that far exceeds Audition 1.5. how to download adobe audition 1.5 free full version
The most popular free, open-source audio editor. It mimics the waveform editing style of early Audition. You may need to install older DirectX runtimes
Many "cracked" installers contain Trojans or ransomware. It mimics the waveform editing style of early Audition
Audition 1.5 was designed for Windows XP. It may struggle to run on Windows 10 or 11 without significant "Compatibility Mode" Tweaks.
You can download the latest version of Adobe Audition from the Creative Cloud website for a 7-day free trial to see how the software has evolved. How to Run Old Versions of Audition
Right-click the setup file and select "Run as Administrator."