Search found 68 matches

by bjkwon
June 14th, 2020, 7:45 pm
Forum: Sound beyond sound
Topic: 95. Silence is a mirage
Replies: 0
Views: 951

95. Silence is a mirage

Can we experience complete silence? Probably not. The quieter it is, the harder to get rid of all sounds. In a soundproof room, you start to hear sounds of your own body: breathing, swallowing, or digestion. Even if you manage to block your ears completely, the auditory neurons still make spontaneo...
by bjkwon
June 14th, 2020, 7:43 pm
Forum: Sound beyond sound
Topic: 93. Can you really hear wind?
Replies: 0
Views: 926

93. Can you really hear wind?

Howling, whistling, rattling... there are many words to describe the sound of wind. But wait, does the wind have a sound? Those sounds simply came from the interactions between the wind and objects. "Howling wind," for example, describes the nature of the howling structure (perhaps the gutter of yo...
by bjkwon
June 14th, 2020, 7:42 pm
Forum: Sound beyond sound
Topic: 92. Auditory inception
Replies: 0
Views: 905

92. Auditory inception

During REM [Rapid Eye Movement] sleep, the brain monitors external sounds and incorporates them into our dream. In an episode of Friends "The One with Hypnosis Tape," voices heard while asleep affects Chandler's behaviors. In real life, the content of verbal stimuli during REM sleep is not always t...
by bjkwon
June 14th, 2020, 7:41 pm
Forum: Sound beyond sound
Topic: 90. Overcoming noise
Replies: 0
Views: 893

90. Overcoming noise

More often than not, we hear a sound in the background of other sounds. We ought to focus on the target sound and figure out the meaning of others. How much noise can we tolerate to get the meaning of sound? It varies a great deal and can be anywhere from 0 dB SNR to -20 dB SNR [Signal-to-Noise Rat...
by bjkwon
June 14th, 2020, 7:40 pm
Forum: Sound beyond sound
Topic: 89. What is sound, anyway?
Replies: 0
Views: 866

89. What is sound, anyway?

Sound is a physical phenomenon involving vibration of air molecules and the transfer of energy. The existence of sound can be understood and demonstrated with tools of physics, as opposed to our mind and soul that we cannot demonstrate with physics. However, the vibration does not turn into sound u...
by bjkwon
June 14th, 2020, 7:39 pm
Forum: Speech communication--voicing yourself and hearing others
Topic: 88. Voice of transgender people
Replies: 0
Views: 1218

88. Voice of transgender people

Female-to-male transgender people produce a male voice easily as they develop masculine features in their larynx through hormonal therapies. But male-to-female transgender people typically face a greater challenge in feminizing their voices because female hormone injections will not shrink their al...
by bjkwon
June 14th, 2020, 7:38 pm
Forum: Speech communication--voicing yourself and hearing others
Topic: 87. Voice, masculinized or feminized
Replies: 0
Views: 912

87. Voice, masculinized or feminized

Despite the blurry boundary between men's and women's voices in nature, our perception of gender is categorical and dichotic. We set ideal man's or woman's voices in our mind from society and do our best to put ourselves into the right category. Men speak with assertive tones and monotonous pitch c...
by bjkwon
June 14th, 2020, 7:37 pm
Forum: Speech communication--voicing yourself and hearing others
Topic: 86. How do we tell a man's voice from a woman's?
Replies: 0
Views: 894

86. How do we tell a man's voice from a woman's?

We do it primarily based on the pitch of the voice. But the pitch alone is not sufficient, because its ranges for males and females overlap substantially: 80 to 200 Hz for males and 150 to 300 Hz for females. Additional acoustic features we utilize are the range of formants and the degree of "breat...
by bjkwon
June 14th, 2020, 7:36 pm
Forum: Speech communication--voicing yourself and hearing others
Topic: 79. Then, what good is phonetics?
Replies: 0
Views: 865

79. Then, what good is phonetics?

Oh, please. No one can devalue phonetics. Forget about Siri. Knowledge of phonetics is important in many areas. Phonetics gives us a foundation on how speech sounds are produced, how we visualize them and analyze features, and how they lead to perception. However, we must know what we know and we d...
by bjkwon
June 14th, 2020, 7:35 pm
Forum: Speech communication--voicing yourself and hearing others
Topic: 78. Phonetics lost. Miserably.
Replies: 0
Views: 937

78. Phonetics lost. Miserably.

Building a machine or computer program that understands human speech was a dream for a long time. Decades ago, scientists and engineers clung to phonetics research to tackle this problem, thinking that a very good understanding of the acoustic properties of speech and how they are mapped into perce...