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Some other things to consider regarding the chuckle are the contribution the larynx plays in determining the desired results, and the Resonate Cavity Size…or Mouth Cavity Size…as it relates to softer versus louder and more aggressive chuckling. Let's first look at the larynx function. Being able to turn the larynx on and off while chuckling demonstrates the contribution it plays. The larynx can be active, as when we speak, or passive, as when we whisper. In all our calling we should also be aware that we can have an active larynx and a passive larynx.

Most calling is done with only a short initial burst of the larynx at the start of a note . It is not, and should not, be sustained through the duration of the note. To do so results in a rough, gravely sound …and usually a sore throat at the end of the day. Generally this is a habit that is picked up on poorly designed calls that lack "duck". The operator tries to get the needed "duck" by growling into the call. In other words, he sustains his larynx throughout the duration of the notes he's creating.

When producing the chuckle one can utilize a passive or active larynx. Being able to turn the larynx on and off will produce various results. With no larynx function the notes are "cleaner" and crisper. By adding the larynx there's more resonance to the final sound output. Neither way is "right" nor "wrong". It really is a personal preference. The fact that one understands the contribution the larynx plays, and can turn it on and off at will, allows one to have that much more versatility in his calling. Once again, practice turning on and off the larynx with the call backwards to better hear the contribution the larynx is imparting .

The last aspect to examine is that of the Resonate Cavity Size, often referred to as Mouth Cavity Size. While many students are completely unaware that they can change the size of their Mouth Cavity, it becomes important to understand the concept of a changing Mouth Cavity Size. In short, a larger cavity will support louder sounds while a smaller cavity will be more supportive of softer sounds. The smaller cavity will require a smaller Chamber Pressure while the larger cavity will require a greater amount of Chamber Pressure. Therefore, if one is wanting to impart a softer volume Chuckle to ducks working overhead or very close they need to get that tongue tip forward, more in the TI position in the Single Cut Chuckle or Ti-CA position for the Double Cut Chuckle . As the ducks work further out, or in acoustical situations that require more volume or more aggressive calling, move the tongue tip further back where it will be more supportive of a louder volume sound. Here, move the tongue tip to the TU or DI position for the Single Cut Chuckle or TU-CA or DI-GA position for the Double Cut Chuckle.

It should be noted that the use of these particular sounds, or tongue positions, are examples only, and that for each person the positions may be somewhat different due to varying physical differences from person to person. But they do get the point across that the varying mouth cavity principle plays an important part in trying to learn the physics involved in creating various calling sounds. This applies not only to the chuckle but also to all the other sounds we try to create.

For more information and instruction on how to properly operate a functional duck call check out our highly instructional 90 minute video (coming soon on DVD), "Pro Duck Calling" or our 100 minute double-disk CD Set, "Duck Calling A to Z." at
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