FREQUENCY, C/S 
300 
200 
100 F 
0 5 10 15 20 25 
TIME, SECONDS 
Figure 8. Sonagram of 20 c/s Short Pulses. They 
OCCUP GE Op Oo 155 Gre BO SCCo CBUIOEE BRUPGjDUlSe 
frequency shift from as high as 40 c/s, and are 
OF bae Oreer Of L SCC bin Greg soiwo (The vertical 
striations are from the Rhythmic Grunt sound.) 
23 
