Voice Depends on Vocal Fold Vibration and Resonance.
Sound is produced when aerodynamic phenomena cause vocal folds to vibrate rapidly in a sequence of vibratory cycles with a speed of about: 110 cycles per second or Hz (men) = lower pitch. 180 to 220 cycles per second (women) = medium pitch..
It involves four processes: Initiation, phonation, oro-nasal process and articulation.
The initiation process is the moment when the air is expelled from the lungs..
Allowing air to reach the lungs.
Allowing us to cough and bring sputum and foreign bodies out of the lungs.
Allowing us to strain when lifting heavy things or going to the toilet.
Producing a voice..
It may not surprise you that genetic factors influence vocal quality.
After all, voice qualities are largely determined by the size and shape of your larynx, neck, throat and facial structures all determined by genetics.
But the influence of environment is too strong to be ignored..
The larynx, or voice box, is located in the neck and performs several important functions in the body.
The larynx is involved in swallowing, breathing, and voice production.
Sound is produced when the air which passes through the vocal cords causes them to vibrate and create sound waves in the pharynx, nose and mouth..
The ability to produce voice starts with airflow from the lungs, which is coordinated by the action of the diaphragm and abdominal and chest muscles.
The voice box (larynx) and vocal folds (sometimes called vocal cords) comprise the vibratory system of the voice mechanism..
The vocal folds (also called vocal cords) are part of the larynx.
The vocal folds vibrate to create the sound of the voice.
The pharynx is the throat.
It goes up from the larynx and divides into the laryngopharynx (just above the larynx), oropharynx (going into the mouth) and nasopharynx (going into the nose)..
The human singing voice is also a vibration which is amplified by resonance.
The vocal chords are the vibrating part and the throat, mouth, nasal cavities and bronchial tubes constitute the resonance cavities that amplify these vibrations into sound..
Air pressure is converted into sound waves.
Vocal folds vibrate when excited by aerodynamic phenomena; they are not plucked like a guitar string.
Air pressure from the lungs controls the open phase.
The passing air column creates a trailing “Bernoulli effect,” which controls the close phase..
Voice Depends on Vocal Fold Vibration and Resonance.
Sound is produced when aerodynamic phenomena cause vocal folds to vibrate rapidly in a sequence of vibratory cycles with a speed of about: 110 cycles per second or Hz (men) = lower pitch. 180 to 220 cycles per second (women) = medium pitch..
The vocal folds (also called vocal cords) are part of the larynx.
The vocal folds vibrate to create the sound of the voice.
The pharynx is the throat.
It goes up from the larynx and divides into the laryngopharynx (just above the larynx), oropharynx (going into the mouth) and nasopharynx (going into the nose)..
Vocal pedagogy is the study of the art and science of voice instruction.
It is used in the teaching of singing and assists in defining what singing is, how singing works, and how proper singing technique is accomplished.
The anatomy of the vocal folds.
Laryngoscopic view of the vocal folds..
Voice Depends on Vocal Fold Vibration and Resonance.
Sound is produced when aerodynamic phenomena cause vocal folds to vibrate rapidly in a sequence of vibratory cycles with a speed of about: 110 cycles per second or Hz (men) = lower pitch. 180 to 220 cycles per second (women) = medium pitch..
The human voice consists of sound made by a human being using the vocal tract, including talking, singing, laughing, crying, screaming, shouting, humming or yelling.
The human voice frequency is specifically a part of human sound production in which the vocal folds (vocal cords) are the primary sound source..
The mechanisms of voice production can be divided into 3 systems: the air pressure (breathing mechanism), vibratory (the vocal folds), and the resonating systems (the supraglottic airway and vocal tract).
Anatomy..
Voice is generated by airflow from the lungs.
When the air from the lungs blows through the vocal folds at a high speed, the vocal folds vibrate.
The vibrations lead to sounds we call voice.
These sounds are shaped to form speech..
Overview.
The larynx, or voice box, is located in the neck and performs several important functions in the body.
The larynx is involved in swallowing, breathing, and voice production..
The air blowing through the folds makes them vibrate.
The vibrations make sound waves that travel through your throat, nose, and mouth.
The size and shape of these structures create the pitch, loudness, and tone of your voice.
That's why each person's voice sounds so different..
With the purpose of establishing the spectral representation of the voice signal, it is necessary to characterize the control signal based on the estimate of its probability density function, to describe the behavior in the frequency domain of the cyclostationary impulse generator using Expression 30.
During a locution, the vocal cords have a highe.
Nevertheless, although a mechanical voice production system may find application in voice prosthesis or humanoid robotic systems in the future, current mechanical models are still a long way from reproducing or even approaching humans' capability and flexibility in producing and controlling voice.
Changes in voice physiology or physics that cannot be heard are not that interesting.
On the other hand, the physiology and physics may impose constraints on the co-variations among fundamental frequency (F0), vocal intensity, and voice quality, and thus the way we use and control our voice.
The voice signal waveform is the result of the entire speech formation process.
Basically, speech is formed from a cyclostationary excitation, for the sonorous signals, or a broad spectrum noise, similar to white noise, for the non-sonorous sounds.
The sonorous signals have in their waveform a cyclostationarity provided by the type of excitation in.
The voice generation model is based on the physics of phonation considering the cyclostationary of the voice signal, caused by the oscillation of the vocal cords.
In this scenario, the vocal cord prototype for voice generation is given by the generation of a train of cyclostationary impulses, which excite the vocal cords providing a cyclostationary.
After the passage through the glottis, the glottal flux represents the input of the vocal tract, which has the function of filtering from a transference function determined by the position of the articulators in the moment of the phonation of each phoneme.
As mentioned, the estimation of the frequency selectivity magnitude spectrum of the vocal tra.
For the new voice production model, the vocal cords are excited by a train of cyclostationary impulses, more adequately characterizing the generation of the voice signal.
The vocal cords are modeled by means of the derivative of the glottal pulse of Liljencrants-Fant, whose impulse response given by Expressions 37 e 38.
In the time domain, the glot.
It is a proposal of a model to generate signal using linear and time-invariant systems and takes into account the phonation biophysics and the cyclostationary characteristics of the voice signal, related to the vibrational behavior of the vocal cords.
This paper provides a review of voice physiology and biomechanics, the physics of vocal fold vibration and sound production, and laryngeal muscular control of the fundamental frequency of voice, vocal intensity, and voice quality.
Current efforts to develop mechanical and computational models of voice production are also critically reviewed.
