| Mail out | family | length | mel profile | dyn profile | note 1 | note 2 | ||
| %age | name | sample | ||||||
| 32% | Feedback_Yes_01 | Feedback_Yes | 0.38 | 
 | 
 | whistle medium high freqs. +++ | Cartoon | |
| 11% | Out_Mail_01 | Out_Mail | 0.93 | 
 | 
 | idem | ||
| 11% | Out_Mail_02 | 0.785 | 
 | 
 | ||||
| 11% | Out_Mail_03 | 0.99 | 
 | 
 | cartoon | |||
| 5% | Out_Mail_04 | 1.90 | 
 | 
 | Ding | |||
| 5% | Out_Mail_06 | 37% | 0.73 | 
 | 
 | Wood Block | ||
| 5% | In_Mail_02 | 0.772 | 
 | 
 | ||||
| 5% | In_Mail_04 | 1.36 | 
 | 
 | Sleigh bells | |||
| 5% | In_msg_02 | 1.63 | 
 | 
 | Image (telegraph) | Cartoon | ||
| 5% | In_Radio_04 | 1.55 | 
 | 
 | Granuleux | |||
| 5% | Out_Radio_04 | 1.51 | 
 | 
 | Granuleux | |||
-conclusion-
'Feedback yes 01', which can be perceived as an image of something being thrown in the air, is widely chosen -> this image is good for this purpose.
The three followers are around 0.8 sec - all with upwards mel profile at the end of the sound.
Concerning our "profile characterization" : we can see that "something 
  being thrown in the air" is an excellent image to give a typical idea of 
  this profile.
  -> It would then be a good idea, when possible, to include simple words and 
  images with the profile, to quickly give an idea of the concerned category.