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  • Erika Lynn Woll 10:48 pm on December 11, 2014 Permalink |  

    Amazing Recorder Performance 

    For my musical instrument project, I created a PVC recorder. I based the placement of the recorder’s tone holes off of an old recorder I still had from grade-school. All my life, I have known recorders to be played only by elementary students. It was the instrument that was simple, yet could play “Jingle Bells” for 3rd grade holiday concerts. I wondered what a recorder would sound like if it was played by a professional…It is absolutely amazing. This video is worth watching, or at least listening to! Listening to her play makes me feel as though I’ve been playing wrong for all of these years. If you have ever played the recorder, I’m sure you’ll be amazed with how beautiful one can actually sound.

     

    • Hannah Alexander 11:38 pm on December 11, 2014 Permalink

      I had to play a recorder in 3rd grade and watching this makes me feel very embarrassed for ever having to play in in elementary school. I was so awful. She on the other hand is absolutely amazing the fact that she can make a recorder sound that good is incredible!

  • Erika Lynn Woll 11:08 pm on November 13, 2014 Permalink |  

    Hearing Aids/Cochlear Implants 

    I have watched numerous videos of children’s activation of cochlear implants, allowing them to hear for the first time. I once took an American Sign Language class, where I learned about deafness and various hearing aids. Cochlear implants generally work best in babies and young children. The older you get, the harder it is for the implant to work properly. Cochlear implants are used on those who have damage to the inner ear (i.e. the cochlea, basilar membrane, cilia). Hearing aids are used for hearing impaired, who need sound amplified. This video shows a young girl, Kai, hearing clearly for the first time with hearing aids. She seems to talk pretty well, and this is because she had 50% hearing loss in one ear, and 65% hearing loss in the other. Her reaction is priceless. It’s amazing to see how this little girl became giddy with excitement over hearing her own voice – something we do not think twice about in our own lives.

     

    • Katerina Mary Procyk 12:57 pm on December 1, 2014 Permalink

      This video is absolutely adorable and heart warming. I do have a question though. How is it determined what percentage of hearing a person does and does not have? I read that a cochlear implant has the potential to only work for 3 years for adults.

  • Erika Lynn Woll 11:01 pm on September 10, 2014 Permalink |  

    Memorizing the Unit Circle Using Left Hand Trick

    I know that I often times have a really difficult time mentally picturing the unit circle in my head. I mix up which radians belong where, and also have a hard time figuring out the sine and cosine of each angle. I found multiple videos on ways to memorize the unit circle, such as songs or simple patterns. However, this trick was new to me and seemed effective. Looking at your left hand, this video explains how each finger corresponds to a particular angle, both in radians and degrees. Additionally, the video even explains a trick to find the sine and cosine of each angle (finger). I hope this helps anyone who has tried different methods to master the memorization of this vital component of the study of sound waves!

     

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