The Acoustic Structure of Speech(Sounds) An introduction of sound Spectrograph The Acoustic Structure of Speech Sounds Back
The Acoustic Structure of Speech (Sounds) ◼ An Introduction of Sound Spectrograph ◼ The Acoustic Structure of Speech Sounds Back
An Introduction of Sound spectrograph (声音摄谱仪) Sound spectrograph onto a moving belt of phosphor(磷光体) producing the roject it consists of a set of filters that analyze the sound and ther spectrogram(摄谱图), which is one of the most common ways of describing the acousticalenergy of speech sounds. (p. 73) Sound Spectrogram( voIceprint,光谱图) is a technique that plots sound energy in frequency time. It is simply a picture in which The brightness/darkness of a position represents the amplitude/intensity of a frequency component The vertical axis represents frequency of sound The horizontal axis represents time
An Introduction of Sound Spectrograph (声音摄谱仪) ◼ Sound Spectrograph: ◆ consists of a set of filters that analyze the sound and then project it onto a moving belt of phosphor(磷光体), producing the spectrogram (摄谱图), which is one of the most common ways of describing the acoustical energy of speech sounds. (p.73) ◼ Sound Spectrogram (voiceprint, 光谱图) ◆ is a technique that plots sound energy in frequency & time. It is simply a picture in which: ⧫ The brightness/darkness of a position represents the amplitude/intensity of a frequency component ⧫ The vertical axis represents frequency of sound ⧫ The horizontal axis represents time
A typical spectrogram includes Formants: dark bands---the speech intensity e Formant transitions the large rise or drops in the formant frequency that occur over short duration of time roughly the consonantal portion of a syllable Formant's steady state o the middle portion of a formant o roughly the vowel portion(or in between the beginning and end)of a syllable
◼ A typical spectrogram includes: ◆ Formants: dark bands---the speech intensity ◆ Formant transitions: ⧫ the large rise or drops in the formant frequency that occur over short duration of time; ⧫ roughly the consonantal portion of a syllable. ◆ Formant’s steady state: ⧫ the middle portion of a formant; ⧫ roughly the vowel portion (or in between the beginning and end) of a syllable
.An Example: Tool(p. 74 -- Figure 4-2) .In tool. the first formant is about 1000 hertz(Hz) or cycles per second, the second roughly 2000 Hz and the third 3000HZ Back
◆ An Example: Tool (p.74 --- Figure 4-2) ⧫ In tool, the first formant is about 1000 hertz (Hz) or cycles per second, the second roughly 2000 Hz, and the third 3000 Hz. Back
The Acoustic Structure of speech Sounds The Acoustic Structure of Vowels The Acoustic structure of Consonants The Acoustic Structure of Connected Speech Factors Bearing on Acoustic Structure of Speech Sounds Back
The Acoustic Structure of Speech Sounds ◼ The Acoustic Structure of Vowels ◼ The Acoustic Structure of Consonants ◼ The Acoustic Structure of Connected Speech ◼ Factors Bearing on Acoustic Structure of Speech Sounds Back