2020年2月11日 / Last updated : 2020年2月11日 ｙｋ Sound Technical Report A little review. The secret of compressed sound source (MP3) Let’s review the music compression technology, such as MP3, which is too common to be talked about recently. MP3 data is 10% of CD. The data volume of MP3 is about 1/10 of CD (in case of 128kbps).One minute songs…
2014年12月27日 / Last updated : 2020年2月11日 ｙｋ Sound Technical Report Introduction to car audio deadning. Introducing car audio deadning that can be done easily. The term “deadening” is based on the English word “deaden”, and refers to adjusting the sound quality so that the door to which the speaker is mounted can be used as…
2014年12月26日 / Last updated : 2020年2月11日 ｙｋ Sound Technical Report Easy commentary! “ Decibel (dB) ” which is difficult for ordinary people to understand. In the world of engineers who are concerned with the audio world, the decibel (dB) display is very often used. This decibel (dB) display is really very convenient. That’s why engineers love the decibel (dB) display. I often write this…
2014年12月23日 / Last updated : 2020年2月11日 ｙｋ Sound Technical Report How many bits are your ears? What is the difference in sound quality due to the number of quantization bits? I did not find a good homepage even if I searched on the web for a while, so I decided to make it myself. (I can find a lot of mosquito sound comparisons …) It is “On the effect of…
2014年12月22日 / Last updated : 2020年2月11日 ｙｋ Sound Technical Report The sound disappears in the listening room! ? What is the identity of standing waves? What is the place where you put a common small speaker? Is there not much living room? This time, I would like to talk about the place where the speaker is placed and the sound that can be heard. Yamabiko…
