速報APP / 教育 / BlueWhale Ultrasound and Infrasound List

BlueWhale Ultrasound and Infrasound List

價格:免費

更新日期:2019-03-18

檔案大小:950k

目前版本:1.0

版本需求:Android 6.0 以上版本

官方網站:http://www.andwaves.com

Email:sales@andwaves.com

聯絡地址:Steven Schwartz AndWaves PO Box 380073 Cambridge, MA 02238

BlueWhale Ultrasound and Infrasound Listener(圖1)-速報App

Sounds are ultrasonic at frequencies 20,000 Hz and up. Sounds are infrasonic at 20 Hz and down. Smartphone microphones can often pick up the lowest ultrasound and highest infrasounds. Practically speaking most people have trouble hearing sounds above 10,000 Hz, so they are missing lots of interesting sounds. These are sounds from birds, insects and even pet mice.

BlueWhale Ultrasound and Infrasound Listener(圖2)-速報App

BlueWhale shifts very high pitched sounds down where human hearing is best, so you can have fun listening to sounds you might not ordinarily hear. Swarms of insects make high pitched sounds; so does rubbing one's hand on a shirt sleeve. Elephants and whales produce very low pitched sounds known as infrasound. (Although this software isn’t going to help you out with whales unless you have a hydrophone.) Many surprises await in ordinary things around the house. For example, brushing ones hand along some cloth is much louder in ultrasound than at regular hearing frequencies.

BlueWhale Ultrasound and Infrasound Listener(圖3)-速報App

Use BlueWhale by first making an audio recording. Then play back the recording with the near-ultrasonic or near-infrasonic sound converted to normal hearing range.

BlueWhale Ultrasound and Infrasound Listener(圖4)-速報App

Be sure to make short recordings. Once BlueWhale begins processing the signal for playback, it will continue until it is finished.

BlueWhale Ultrasound and Infrasound Listener(圖5)-速報App

I appreciate receiving feedback or any recommendations for improvements to this application. Please contact me at developer@andwaves.com with any questions or recommendations that you may have.

For information about this or other AndWaves products, see www.andwaves.com