Anime Director Yamazaki Osamu objected to the recent reports about the low salary of anime staff. He said there are large differentials among them. According to Yamazaki, the average salaries of the main staff for one episode of TV anime are:
($1 = 90 - 95 yen)
Director: 200,000 - 250,000 yen
Episode graphic director: 300,000 yen
Audio director: 150,000 - 180,000 yen

Episode graphic directors are tied down to one episode for one and half a month. On the other hand, audio directors can finish one episode in two days and they usually work on several series at the same time. Taking the total working hours into account, the monthly earnings are as follows:

Director: 500,000 yen
Episode graphic director: 200,000 yen
Audio director: ~1,800,000 yen
Scenario writer: 300,000 yen + royalties
Filming staff: 800,000 - 1,000,000 yen
Normal animator: 100,000~

Yamazaki claimed the correction of the wage inequalities between the animators and the other production staff.

Source: JAnica Club

Episode graphic director is the chief of the key and in-between animators.
Audio director is in charge of the directions of voice actings, sound effects and BGM.