Straw & Cup Combo Kit

The Science behind the Straw

What does the straw do?

• Trains the posturing of the vocal folds.
• What does the straw do to change the posture of the Vocal Tube? – It lengthens the epilaryngeal space.

Why does this matter?

The straw is all about pressure equalization. The opening of the straw diameter is just smaller than the approximation of the average opening of the vocal folds. The smaller the opening, the more resistance (aerodynamic pressure) you are getting.

When the vocal folds vibrate, there are varying ranges of open phases and close phases. What we want is to get the average of the opening of the vocal fold movements. Whatever that average opening your vocal folds are doing, it should be very similar to the diameter of the straw, which is why you need to play around with the size. The idea is that you wouldn’t want a huge diameter in the straw because that would not help with your vocal efficiency. That is why graduating to smaller straw sizes make sense because you are actually closing the vocal folds and putting them in a squared-up position.

Because there is so much back pressure happening it makes it so you cannot over squeeze. What you are doing is targeting the muscles that put the vocal folds in a squared-up position which then is lowering your phonation threshold pressure. We are re-configuring the posturing of the vocal tract.

When using the straw, if you try to cough or squeeze, hard glottal attack, you can’t because the back pressure is counter acting. If you have a breathy voice, then you would get no sound, so you know the straw is bringing it together. The degree at which it brings the vocal folds together is determined by the diameter of the straw.

The back pressure does 2 things:

1. Lowers the larynx
2. Increases the epilaryngeal space. Most likely in length because it is pushing back the false vocal folds and it is allowing the larynx to come down.

So we are looking at the ratio between the Epilaryngeal Tube and the Pharynx. What the straw does is it lengthens the tube. You get the feeling of a long narrow tube (long narrow tube of the straw) and a feeling of what inertance (acoustical pressure) does. When you take the straw out, hopefully it has trained the muscles to give you a better ratio in the pharynx.

Our Thoughts

We believe that the muscles that are activating in straw phonation is the TA. The LCA muscle is the muscle that does the posterior squeeze so the LCA will be aiding in the un-press and the TA would be in charge of the squaring up.

Who wouldn’t want to target the TA muscle to tone it up and square up the vocal folds? The straw is a perfect instrument to target the TA muscle and keep the other muscles coordinated. TA activation is what is needed if you experience:

• Bowing
• Aging
• Breathy Sound

If someone is experiencing crazy TA activation, we are NOT trying to overly activate that muscle or lift weights for the TA. We are trying to coordinate the muscle balance between the TA muscle and the CT, LCA, and IA to get the best configuration possible.

Read More About the Science Behind the Voice Straw

https://www.sciencedirect.com/science/article/abs/pii/S1746809411000097

http://www.vocapedia.info/_Library/JOS_files_Vocapedia/JOS-057-1-2000-027.pdf

https://www.youtube.com/watch?v=0xYDvwvmBIM&t=17s

https://www.youtube.com/watch?v=BRJUwQW_3Gs

https://www.youtube.com/watch?v=_Qc7qauolQc

https://www.youtube.com/watch?v=03C7GjG9XmQ