关于本计算器
Decibels from power (10·log10) or voltage (20·log10) ratios.
功率比转分贝。
输入计算参数
计算结果摘要
Decibels from power (10·log10) or voltage (20·log10) ratios.
Power uses ×10, voltage/amplitude uses ×20.
Doubling of power.
Ratio below one — attenuation, not gain.