How Do Sustained Consonants Like Shhhh Appear on an Oscilloscope?

[stylez03]

I overlooked a problem in my lab manual and wasn't able to complete the last problem, I was wondering if anyone would know anything about Oscilloscope:

What happens when sustained consonants such as "Shhhh" sound on Oscilloscope differ from other consonants or humming/singing?

 

[andrevdh]

The "shhh" sound acts like white noise - multitudes of different frequencies are generated. So no periodic wave will be obseved, while singing and humming might display some periodic disturbances.

 

[m2003]

When sustained consonants, such as "Shhhh," are displayed on an oscilloscope, they will appear as a continuous line on the screen. This is because sustained consonants produce a steady, uninterrupted sound wave. On the other hand, other consonants or humming/singing will appear as a more jagged line on the oscilloscope screen. This is because these sounds have a more varied and fluctuating sound wave pattern. Additionally, the amplitude and frequency of the sound wave will also affect the appearance on the oscilloscope. Sustained consonants typically have a lower amplitude and frequency compared to other consonants or humming/singing, resulting in a smoother and steadier line on the oscilloscope screen. It is important to note that the appearance of these sounds on an oscilloscope may also be affected by the settings and sensitivity of the instrument.