I'm a current PhD student in Cognitive Load Theory, and I have to agree with @Christiaan above, the article you refer to is just a blog, and doesn't refer to any theory specifically.
IF the article is referring to Cognitive Load Theory itself, then there are 3 described types of cognitive load.
- Intrinsic Load - The load for how innately difficult the task is to the learner (this varies based on previous expertise).
- Extraneous Load - The load for how effective the instructional strategy or materials being presented are (bad instructions from a teacher or poorlly designed worksheets increase this type of load).
- Germane Load - the load devoted to actual learning, that is information processing, integration and schema acquisition.
Your article mentions different sensory inputs, and while there are aspects of CLT that relate to different types of sensory input, they aren't ever referred to as 'kinds of cognitive load'. If anything these may be referred to as 'working memory channels' based on Baddeley & Hitch's model of working memory.