Loudness can be scientifically measured in units for all decibels(dB) of which represents the softest sound in the human ear can be detect. A single decibel only just crosses the thresh holds of hearing. A whisper measured 10 to 20 decibels. Noisy conversations about 70 and pneumatic drill equals 110, and any sound about 130 decibels. Such as that of a low flying plane approaches the thresh hole of pain.
The height or depth of a sound is called PITCH .only regular vibrations of unvering frequency produces a definite level of pitch. in speech the pitch is always varied say the word 'no' trying to make last for more than 5 seconds,
without leting your voice go up or down if the sound remains level you will no longer be speaking you will be singing.
when we listen to the birds singing we realize in membeable posibilities of different levels of pitch. Birds are in a sense among inventors of songs. When human being sing they prefer to limit them selves to a small number of definite. Easily recognisabel levels of pitch these are called NOTES . Many of the familier tunes that are whistled or sung through out the world or founded of only seven notes. These are the notes that can be heard in a chime of bells(means a scale) running up and down the steps of a ladder of sound.
The height or depth of a sound is called PITCH .only regular vibrations of unvering frequency produces a definite level of pitch. in speech the pitch is always varied say the word 'no' trying to make last for more than 5 seconds,
without leting your voice go up or down if the sound remains level you will no longer be speaking you will be singing.
when we listen to the birds singing we realize in membeable posibilities of different levels of pitch. Birds are in a sense among inventors of songs. When human being sing they prefer to limit them selves to a small number of definite. Easily recognisabel levels of pitch these are called NOTES . Many of the familier tunes that are whistled or sung through out the world or founded of only seven notes. These are the notes that can be heard in a chime of bells(means a scale) running up and down the steps of a ladder of sound.
