Adobe Audition 1.5 is a 32-bit application . It can only run 32-bit VST plugins (not 64-bit). If you download modern 64-bit plugins, Audition 1.5 will not see them. You also cannot use VST3 plugins—only VST2 ( .dll files). 1. Understanding Compatibility | Plugin Type | Works with Audition 1.5? | |-------------|--------------------------| | 32-bit VST2 ( .dll ) | ✅ Yes | | 64-bit VST2 | ❌ No | | VST3 | ❌ No | | AU (Mac only) | ❌ No | | AAX (Pro Tools) | ❌ No |
