How to Calculate Lower 3-DB Frequency in Bandwidth Extension?
Lower 3-DB Frequency in Bandwidth Extension calculator uses Lower 3-dB Frequency = 3-dB Frequency/(1+(Mid Band Gain*Feedback Factor)) to calculate the Lower 3-dB Frequency, The Lower 3-dB frequency in bandwidth extension formula is defined as point at which signal has been attenuated by 3dB (in bandpass filter). This is generally considered point for determining filter's bandwidth. bandwidth is defined as difference between upper and lower 3dB points. Lower 3-dB Frequency is denoted by ωLf symbol.
How to calculate Lower 3-DB Frequency in Bandwidth Extension using this online calculator? To use this online calculator for Lower 3-DB Frequency in Bandwidth Extension, enter 3-dB Frequency (f3dB), Mid Band Gain (Am) & Feedback Factor (β) and hit the calculate button. Here is how the Lower 3-DB Frequency in Bandwidth Extension calculation can be explained with given input values -> 0.276491 = 2.9/(1+(20.9*0.454)).