The 6.1.6 version of spatium.panning for Mac is available as a free download on our website. The actual developer of this free Mac application is Paul Christian. The program is categorized as Audio & Video Tools.
From the developer:
spatium is a set of free, open source and modular software tools for sound spatialization. This application renders spatialized audio using ambisonics or amplitude panning. The program gives you the ability to use amplitude panning to spatialize a mono audio file.
You may want to check out more Mac applications, such as Spatium, Unitor 8 Preference Pane or RCDefaultApp, which might be similar to spatium.panning.