24 frames per second.

In video technology, 24p refers to a video format that operates at 24 frames per second (or typically, 23.976frame/s when using equipment based around NTSC frame rates) frame rate with progressive scanning (Not interlaced). Originally, 24p was used in the non- linear editing of film-originated material. Today, 24p formats are being increasingly used for aesthetic reasons in image acquisition, delivering film-like motion characteristics. Some vendors advertise 24p products as a cheaper alternative to film acquisition.

When working entirely within the digital non-linear domain, 24p material is as easily handled as material at any other frame rate. However, 24p material requires care when it is processed using equipment designed for standard video frame rates.

There are two common workflows for processing 24p material using video equipment, one using PAL frame rates, and the other using NTSC frame rates. Of these two, the PAL route is the simpler, but each has its own complications.

24p compared to 30p

As Charles Poynton explains, the 24 frame/s rate is not just a cinema standard; it is also "uniquely suited to conversion to both 50 Hz systems (through 2:2 pulldown, 4% fast) and 59.94 Hz systems (through 2:3 pulldown, 0.1% slow). Choosing a rate other than 24 frame/s would compromise this widely accepted method of conversion, and make it difficult for film producers to access international markets" You can use as many frames in a second, depending on the outcome you want, a 30fps would be very fast, as a 10fps would be very slow. The recommendation is for 24 fps

What is a walk cycle?

A walk cycle is a sequence of frame showing walk movement, walk cycles are used a lot, especially when a person appears in an animation, the walk cycle can simply be used over and over, without having to re create each step again.