Clear Wave . でしべる音量測定スピーカー水抜き [iPhone]

Clear Wave App lets you create pure wave tones at frequencies from 50 Hertz to 20,000 Hertz and track environmental noise around you.
Plays sounds that can help you test your speakers.
Control the volume, frequency, and waveform in real-time.

The noise pollution meter will help you determine how many decibels are around right now.

FEATURE HIGHLIGHTS:

- Test the speaker with sound waves
- Noise level meter. Measure and share ambient noise levels.
- Tone Generator (50 - 20,000 Hz)

Note: the free-of-charge version may have limits these restrictions can be changed.

Premium access to the application provides you with unlimited access to all the functions of the App as well as with zero ads.
To get Premium access to the application you may choose a 1-month subscription with a 3-day trial for $9,99. This price is for United States customers.
Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence.
The subscription will automatically renew unless turned off in your iTunes Account settings at least 24 hours before the current period ends.
You can go to your iTunes Account settings to manage your subscription and turn off auto-renew.
Your iTunes Account will be charged when the purchase is confirmed.
If you subscribe before your free trial ends, the rest of your free trial period will be forfeited as soon as your purchase is confirmed.

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