Sonic Eject
【Here is the frequency generator and headphone burner function! 】
The newly bought earphone diaphragm ring has poor mechanical compliance
Burn-in is a means and method to quickly make the equipment reach a stable state
Distortion also gradually returns to normal levels after a period of burn-in
use different frequencies of audio as well as white noise and pink noise for burn-in

- Frequency generator
【Built-in frequency generator and automatic full-band mode】
Averaging the full frequency range of a ground-active audio system
That is, the frequency range of the sound that the human ear can hear is 20-20khz
Slide to adjust hertz value (20-20khz)
There is also 【automatic full-band mode】
App automatically increases slowly from 20hz to 20khz
Complete a cycle in five minutes

-Burn in headphones
【Using white noise and pink noise to burn headphones】
White noise: same power on all frequency bands
Pink noise: The energy gradually decays from low frequencies to high frequencies
20 hours of white noise, 10 hours of pink noise
With a burner, you can get twice the result with half the effort!
Make the sound quality of the headphones more uniform!

Frequency generator - burn headphones!
Suitable for newly bought professional headphones!

Here are some illustrates about Burn-in Headphones
https://hub.yamaha.com/audio/a-how-to/how-to-burn-in-headphones-and-earbuds/
https://www.headphonesty.com/2016/01/why-you-should-or-should-not-burn-in-your-headphones/
https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/iet-spr.2012.0161

Sonic Pro
Subscription features:
1. Frequency generator
2. Freely adjust the number of Hertz
3. Use white noise and pink noise to cook headphones

Subscription price: $9.99/year (3-day free trial)
Pricing in other countries may vary, the actual price should be subject to the in-app
Payment: Charged to iTunes account after user confirms purchase
Cancellation of renewal: To cancel the renewal, please manually turn off the automatic renewal function in the iTunes/Apple ID settings management 24 hours before the current subscription period expires.
Renewal: Apple iTunes account will be deducted within 24 hours before expiration, and the subscription cycle will be extended by one subscription cycle after the deduction is successful.
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