I could hear very well a crying sound from the ancient tree of my garden(whowho whowho).
Can you tell what kind of bird is crying?
The answer is a dove, but, during my early childhood I thought that it is an owl.
It was quite a long ago so I am not so sure, but, the reason of thinking it is an owl is that the cry is similar, and the typical behavior of not showing up.
I could not even imagine that it is an owl, because I never saw an owl flying near my house.
I thought it is an owl for a long time, but when I found the crying bird, even then I remember a sense of disappointment.
The urban development in front of the train station continues rapidly and tall buildings are constructed, in the city where I live.
Until not long ago, just traditional retail shops had been lining up continuously until the train station, but now, during the morning rush, the side walk is drafted by crowd of people returning from their working place.
I can remember the vegetable and fish dealers greetings in a loud voice "Good morning Good morning", the town cats cry, the sparrows twitter, while walking towards the train station every morning.
A town cat cry(10sec)
A sparrow twitter(16sec)
I think that it is such a pity that nowadays the city soundscape is changing completely, while walking towards the station I can only hear someone's footsteps or the metallic noise of construction works.
Do you know why, before musical performance, orchestra bands tune their musical instruments using the musical note "la" ?
The common explanation is that the open string in string instruments is adjusted to be the musical note "la".(pushing the string is not needed) The main reason is that "la" is very easy to adjust and as a result is configured as the standard pitch.
Nowadays, the standard pitch of "la" is set to 440Hz, that value was decided during the second international standard for sound conference which was held in London 70 years ago in 1939.(I wonder if it is true but, it is said that the standard pitch sound of a crying baby is 440Hz)
Actually , during the long history of sound the standard pitch had been changed several times in different periods and areas, for example, during performances in the period of the baroque music, the sound standard pitch was lower(415-430Hz), And on the contrary in the period of the Renaissance in Italy the standard pitch was half tone higher.(466Hz)
Nowadays, electric instruments are adjusted to 440Hz but it is heard that most of the current orchestra bands intend to adjust the standard pitch to a little higher value of 442Hz before the performance.
The reason is that the timbre is more brillante, but is 2Hz difference actually noticeable by the listeners?
Lets make a little experiment.
I prepared two sound samples, one with a standard pitch of 440Hz and another of 442Hz.
*Brandenburg concertos No. 5(J.B. Bach composition)
440Hz(16sec)
442Hz(16sec)
Has mentioned before, the 2Hz difference in the standard pitch is not so noticeable, however, the 442Hz sample seems to have a cheerful atmosphere.(For a real performance, the one that feels a sense of pleasance will be the optimum)