I uploaded a new video to my YouTube channel (Most relaxing sounds and videos), check it out below! ミディアムスピーカー周波数範囲検定。
ミッドレンジ周波数。 また、ミッドレンジと呼ばれるミッドレンジ周波数は、典型的には300Hzと5,000Hzの周波数範囲です。

If you like our work, please donate through Paypal link below any amount that you consider. We have expenses, like energy cost, software licenses, hardware maintenance and upgrade, travel to remote location to record video and audio, time, s.o. Thank you!
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=4VSURM5A3CCVJ&source=url

For more great videos, please subscribe to this YouTube channel or our Facebook page: Relaxing and useful sounds, noises and videos (https://www.facebook.com/relaxingsoundsandvideos).