Perhaps not surprisingly, a telephone call maxes out at 3.4 kHz as that is the highest frequency you need to ensure intelligibility of the speaker. In fact, if you look at the frequency response of the human ear, you see a bump in the 1-3kHz range, because we’ve evolved to listen for those frequencies of the human voice. These are the frequencies that give shape to the fundamental frequencies of our voice. It won’t fix everything, but it can definitely start to make your recording seem more “expensive”Ģ-3 kHz is the area that adds clarity to our voice. If you’re in a large space with lots of hard surfaces, reducing the frequencies in this area can make your audio sound more like it was recorded in a smaller, more intimate environment. This EQ does not have a high-pass filter, useful for getting the bassy, “morning radio” soundģ00 Hz-1 kHz is where we’ll hear the most reflections of our voice from the room. If you’re looking to make a PA announcer effect in your podcast, this is a good frequency to boost, but if you find difficulty balancing the perceived loudness of a male and female podcaster, try making a cut to the male’s voice here. Boosting in this area can make our voices sound too heavy or dense, it can be unpleasant. Point being, this range is important to intelligibility and warmth.Ģ00-240 Hz is where we start to get some boominess in voices. And also digital and crunchy, but that is another matter. One of the reasons why phone calls sound so off-putting is because they don’t include this frequency, making our voices sound thin and wispy. This is the fundamental of our voice, the very bottom of our chest.
If the high pass filter has different roll off curves, try -12 or -16 dB per octave.Īnytime you start editing a podcast, an EQ will be the first thing you start using, and the last thing you’ll adjust.Ĩ0-120 Hz is where we get the full, rich timbre of voices. A low pass filter does the same for anything lower than the selected frequency) at this point can help to clean up the audio by taking away energy from sounds like thumps, bumps and plosives (bursts of air into the mic when saying words with “puh” sounds, like “plosives”).
EQ plugins let you adjust the gain of frequency bands individuallyīelow 80 Hz is of little use to podcasters. The human voice doesn’t go any lower than this point, so by putting a high pass filter (a filter that “gives a pass” to anything higher than the selected frequency, leaving them unaffected.
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