![]() ![]() Select a threshold level, target frequency, and reduce! Boosting or cutting in this range can add or reduce nasal sounds as well accent a kick drum’s click. This is also where the main element of the human voice and also where crunchy guitar tones come from. It is no surprise that our hearing has evolved around our need to communicate. Our hearing is most sensitive to the mid range because that is where the bulk of the human voice sits. The high-mid range extends from 2KHz to 6KHz. This is the domain of brass and woodwind instruments. The mid range of the audio spectrum starts at 300Hz and extends to 2KHz. Our article on monitoring sound in post goes into more detail on speaker placement and calibration to ensure greater accuracy in your mixes. What sounded punchy might be a muddy wash on another system. Be careful when cutting or boosting in this range as it is quite easy to lose or muddy subtle characteristics. The very bottom of the Tenor and Soprano ranges starts here. The 80Hz to 300Hz range introduces more tonality. The 20Hz to 80Hz range of the audio spectrum is the realm of subwoofers, for example, a kick drum’s punch. Think of missing the forest for the trees in sonic terms. Hearing fatigue reduces your hearing’s accuracy and will impact the quality of your mixing. In practice, you should consider a break at least every four hours. The OSHA recommended limit for the standard mixing volume of 85 dBA is eight hours. Remember to protect your hearing by following good practices like using earplugs when necessary and taking hearing breaks. Sensitivity at the high end tends to diminish with age. The human hearing range is nominally between 20Hz and 20Khz, which sits in the mid range of the audio spectrum. Let’s add more meaning to these terms by attaching some numbers to them. This convention has been propagated by virtually every audio and video equipment manufacturer over the last 50 years. ![]() We frequently hear EQ and frequencies referred to as low, mid and high. Understanding this range is important when recording audio for video. In theory, this does include all sounds in our hearing range and beyond. The audio spectrum describes the functional frequency range of sound. In post graphics, EQs help polish the post-production mix.The low range of the audio spectrum ranges from 20Hz to 80Hz, while the mid and high ranges fall between 300Hz to 2KHz and 6KHz to 20KHzm, respectively.Sound engineers manipulate sections of the sound frequency to improve the quality of a recording. ![]()
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