(1) Acoustic history When a tree in the forest collapses, it makes a loud noise, but no one is in this primitive forest, so it can't be heard. Is this a sound? The sound is definitely made, because when the trunk and branches touch the ground, they will produce some sounds, but no one hears, but this sound is heard by humans or other animals. It is different, so this is the psychology (PsychoacousTIcs).
The principle of acoustics that I am talking about here is mainly to allow a tuner to understand all aspects of acoustics, rather than to conduct acoustic research, or acoustic thesis for masters and doctors, so the acoustic theories I talk about in this book are all It can actually be used by people who operate the sound on the spot.
In 1915, there was an American named E. S. When Pridham put a telephone listener at the time on a horn that played record sounds, and the sound could be heard by a group of people celebrating Christmas in San Francisco, electroacoustics was born. After the end of the First World War, at the inauguration ceremony of President Harding of the United States, the Bell Company of the United States connected the dynamic coil listener of the telephone to the horn of the record player at that time, and was able to pass the sound to watch the inauguration of the president. A large group of people at the ceremony, so a lot of professional sound research and the development of sound reinforcement engineering knowledge. Acoustic researchers not only try to improve audio equipment, but also do various experiments to understand human response to hearing. But the most advanced audio researchers also understand that audiology is a holistic study. To understand every aspect of audio equipment and the physiological response of humans to hearing, they have made great contributions in the past many years. As early as 1877, Lord Raleigh of the United Kingdom had done acoustic research. He once said: "All problems related to sound, whether directly or indirectly, must be decided by our ears because it It is our organ of hearing, and the decision of the ear should be regarded as the final decision, and there is no need to accept the appeal. But this does not mean that all sound research is conducted by the ear alone. When we find that the foundation of the sound is a When we detect physical phenomena, we have to move to another area of ​​scope when we detect this acoustic realm. It is physics. Important fixed rates can be derived from research in this area, and our hearing perception must also accept these fixed rates. "We It can be seen from the above text that even when there is no electroacoustics, older scientists think that this is the field of physics.
The famous scientist Lord Calvin often said: "When you measure the things you describe and can express them with numbers, you already have some knowledge of this thing. But if you cannot express it with numbers, then your knowledge It is still crude and incomplete; for anything, this may be the source of knowledge, but your mind has not yet reached the realm of science. "Lord Calvin (1824-1907) was the most outstanding scientist of the 19th century One, in order to commemorate this great man, scientists in later generations named the absolute temperature—273.16 degrees Celsius as 0 degrees Calvin degree.
The Davis couple (Don & Carolyn Davis) is the author of "Sound System Engineering" (Sound System Engineering). This book is called the Audio Bible, and it is a must-read for almost everyone who studies audio abroad. I quote this paragraph in his book: "Knowledge of mathematics and physics is a necessary condition for understanding sound engineering in essence. The deeper you understand these two sciences, the more you can make you transcend the feelings you get from feeling, And to achieve the facts using science to cite facts. The famous audiologist James Moore once said: 'In audiology, anything that is obvious on the surface is usually wrong'. "
I quoted the remarks of several scientists and audiologists above, mainly because most people who do audio now are of course very interested in audio and music, but think that they can identify what is by their hearing. Good or bad sound, don't understand that this is a professional engineering knowledge, it is not good for sound. As far back as the 19th century, Sir Leigh has pointed out that this is a scientific realm. Modern sound engineering is also developing as hard as other scientific academies, so sound engineering is inseparable from mathematics and physics.
(2) The difference between live sound and studio sound is explained here on the live sound. It is different from recording technology. Many people think that the highest level of sound is recording technology, which is not comprehensive. of. In the recording technology, there is basically no feedback, because when operating in a recording room, all peripheral factors can be controlled, but when live audio is replayed, we cannot avoid many live audio problems. , So live sound and recorded sound are two different kinds of knowledge.
The principle of acoustics that I am talking about here is mainly to allow a tuner to understand all aspects of acoustics, rather than to conduct acoustic research, or acoustic thesis for masters and doctors, so the acoustic theories I talk about in this book are all It can actually be used by people who operate the sound on the spot.
In 1915, there was an American named E. S. When Pridham put a telephone listener at the time on a horn that played record sounds, and the sound could be heard by a group of people celebrating Christmas in San Francisco, electroacoustics was born. After the end of the First World War, at the inauguration ceremony of President Harding of the United States, the Bell Company of the United States connected the dynamic coil listener of the telephone to the horn of the record player at that time, and was able to pass the sound to watch the inauguration of the president. A large group of people at the ceremony, so a lot of professional sound research and the development of sound reinforcement engineering knowledge. Acoustic researchers not only try to improve audio equipment, but also do various experiments to understand human response to hearing. But the most advanced audio researchers also understand that audiology is a holistic study. To understand every aspect of audio equipment and the physiological response of humans to hearing, they have made great contributions in the past many years. As early as 1877, Lord Raleigh of the United Kingdom had done acoustic research. He once said: "All problems related to sound, whether directly or indirectly, must be decided by our ears because it It is our organ of hearing, and the decision of the ear should be regarded as the final decision, and there is no need to accept the appeal. But this does not mean that all sound research is conducted by the ear alone. When we find that the foundation of the sound is a When we detect physical phenomena, we have to move to another area of ​​scope when we detect this acoustic realm. It is physics. Important fixed rates can be derived from research in this area, and our hearing perception must also accept these fixed rates. "We It can be seen from the above text that even when there is no electroacoustics, older scientists think that this is the field of physics.
The famous scientist Lord Calvin often said: "When you measure the things you describe and can express them with numbers, you already have some knowledge of this thing. But if you cannot express it with numbers, then your knowledge It is still crude and incomplete; for anything, this may be the source of knowledge, but your mind has not yet reached the realm of science. "Lord Calvin (1824-1907) was the most outstanding scientist of the 19th century One, in order to commemorate this great man, scientists in later generations named the absolute temperature—273.16 degrees Celsius as 0 degrees Calvin degree.
The Davis couple (Don & Carolyn Davis) is the author of "Sound System Engineering" (Sound System Engineering). This book is called the Audio Bible, and it is a must-read for almost everyone who studies audio abroad. I quote this paragraph in his book: "Knowledge of mathematics and physics is a necessary condition for understanding sound engineering in essence. The deeper you understand these two sciences, the more you can make you transcend the feelings you get from feeling, And to achieve the facts using science to cite facts. The famous audiologist James Moore once said: 'In audiology, anything that is obvious on the surface is usually wrong'. "
I quoted the remarks of several scientists and audiologists above, mainly because most people who do audio now are of course very interested in audio and music, but think that they can identify what is by their hearing. Good or bad sound, don't understand that this is a professional engineering knowledge, it is not good for sound. As far back as the 19th century, Sir Leigh has pointed out that this is a scientific realm. Modern sound engineering is also developing as hard as other scientific academies, so sound engineering is inseparable from mathematics and physics.
(2) The difference between live sound and studio sound is explained here on the live sound. It is different from recording technology. Many people think that the highest level of sound is recording technology, which is not comprehensive. of. In the recording technology, there is basically no feedback, because when operating in a recording room, all peripheral factors can be controlled, but when live audio is replayed, we cannot avoid many live audio problems. , So live sound and recorded sound are two different kinds of knowledge.
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