"Shammying" Natural Recordings by Native Speakers
I couldn't find a word "shammying" in the dictionary. However, I think you might be referring to "shaming" or "shamming".
Shamming is a verb that means to cover or wipe something, especially a surface, with a shammy, which is a soft piece of cloth. It is often used in a context of cleaning or polishing.
For example: "Shammying the leather car seat to remove dirt and stains."
Feeling or showing embarrassment or repentance for something considered wrong or foolish..BorderSide
A shamisen is a traditional Japanese stringed musical instrument. It has a triangular body and a long neck, with three strings that are plucked with a plectrum. The shamisen is typically played in traditional Japanese music, such as Enka, Min'yō, and Music of Kabuki theater. It's often used to accompany singing, dancing, and other forms of entertainment in Japanese culture.
To sham or shamming means to pretend or counterfeit something, often in a deceitful or insincere manner. It can also refer to pretending to be sick or injured in order to avoid work or other responsibilities.