AppPriceData已觀測數據
AppPriceData
Marcus Painter
Speed of sound calculations for live sound engineers.
僅顯示目前所選商店地區的已觀測下載價格。點擊地區比價可查看各國家與地區的換算價格。
目前在 Apple 公開 App Store 頁面可見的項目，可能不等同於 App Store Connect 中的完整目錄。
Speed of sound calculations for live sound engineers.
Now with metric or US units (meters or feet).
Temperature in Celsius or Fahrenheit.
The Speed of Sound
Calculated using the temperature, humidity and pressure.
Delay Time and SPL
The time taken to travel a given distance and the drop in SPL with distance.
Frequency Attenuation
The amount attenuated by each frequency band depends on temperature, humidity, and pressure. Only frequencies above 2kHz are significantly affected. The attenuation in dB takes into account the distance.
Wavelength
Calculates the full, half and quarter wavelengths for a given frequency. This is useful when designing sub arrays.
Period
The period for a given frequency for full, half and quarter periods.
Make a Donation
Support further development by making an optional small (or large) donation. Thanks!
根據最新觀測到的 App Store 資料快速解答。
最新觀測到的下載價格為 $4.99。請開啟 App Store 官方連結確認目前結帳價格。
Apple 公開頁面目前在此商店顯示 0 個購買項目，公開清單可能不完整。
會。App Store 價格可能因商店、幣別、稅費和開發者定價而不同，目前已收集 3 個地區觀測。
