Airsoft Rate Of Fire

计算射速使用声音。

This is an app for measuring rate of fire of Airsoft (Paintball to i suppose) guns in full auto mode.

It uses sound recordings and measures the difference between peaks to get rate of fire..

1. Record gun sound, a second or two is needed.

2. Move markers to a good portion of sound.

3. adjust threshold until red dots appear on all the top peaks.

4. Rate of fire is shown.

Features.

* Custom recorder, allowing selection of recording source depending on your device.

* Vertical Sliders to pick the beginning and end of the useful sound portion.

* Vertical Slider tabs can be moved up/down for better viewing.

* Horizontal Slider to exclude the waveform below the position from the calculation.

* Save your recordings.

* Share the calculation. (Not yet implemented).

* Enter your usual magazine capacity and show how long to empty the mag.

* Use an externally recorded wav file. (Not yet implemented).

Please note, this is dependent on quality of the sound, some microphones on phones appear too sensitive.

PERMISSIONS:

RECORD_AUDIO - needed to record.

INTERNET - for trial & Metric recording, Crash reporting.

WAKE_LOCK - so phone does not sleep while recording.

WRITE_EXTERNAL_STORAGE - files are stored on SD Card.

READ_PHONE_STATE - for phone ID used in-app billing, Metric recording, Crash Reporting.

ACCESS_NETWORK_STATE - to find out if data connection is available.

BILLING - for in application billing.

LOCATION - for advert.

There is an in-app purchase to remove adverts!

Note: this app uses google analytics.