Parameter Adjustment Guidelines
Characteristics of Frequency Band Adjustment
Low-Frequency Adjustment:
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Common environmental low-frequency noise is mostly concentrated around 50Hz and below. Attenuating the 63Hz band by pulling down the fader can effectively reduce low-frequency rumble, but it may also make the overall sound thinner.
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If the sound appears "muffled," appropriate attenuation around 160Hz can alleviate the dullness and increase transparency.
Mid-Frequency Adjustment:
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If the voice sounds muddy or has a prominent nasal quality, attenuating the mid-frequencies (e.g., 600Hz-800Hz) can effectively enhance clarity and purity.
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A moderate boost around 1kHz can enhance the character and expressiveness of the voice, making it sound more "magnetic."
High-Frequency Adjustment:
Boosting the high-frequency range (e.g., 8kHz-12kHz) can significantly increase the "brightness" and clarity of the voice, making it sound more transparent and vibrant, free from muffledness.
Presence / "Air" Band Adjustment:
Appropriately boosting this frequency band (typically referring to 12kHz and above) to a relatively high level can add a sense of "air" and detail to the sound, further enhancing magnetism and spatial presence.
Abnormal Sound Adjustment Guide
| Issue Type | Manifestation | Target Frequency Band | Adjustment | Notes & Remarks |
|---|---|---|---|---|
| Muffled Sound | Unclear, muddy perception, as if covered by a cloth | 250Hz~400Hz | Attenuate 2~5dB | Can be complemented by a moderate boost around 3kHz to enhance clarity. |
| Nasal Sound | Overly prominent nasal resonance, producing a thick "ng~" sound sensation | 600Hz~800Hz | Attenuate 2~3dB | Avoid boosting 1kHz to prevent exacerbating the nasal quality. |
| Sibilance | Harsh, piercing sounds on "s," "sh" consonants | 5.5kHz~7.5kHz | Attenuate 2~6dB | Adjust precisely based on the actual level of harshness. |
| Thin Sound | Hollow sound, lacking thickness and solidity, weak presence | 120Hz, 3kHz | Boost 1~3dB each | While adding body, avoid excessive low-frequency boost to prevent muddiness. |
| Guttural Sound | Sound seems stuck in the throat, with a "hum~" or dull, breathy sensation | 300Hz~500Hz | Attenuate 2~4dB | Often caused by vocal technique or microphone placement angle during recording. |
| Hoarse/Raspy | Sound appears tired, dry, lacking inherent brightness and fine detail | 4kHz~6kHz | Boost 1~3dB | If harshness accompanies the hoarseness, consider simultaneous attenuation around 2kHz~3kHz. |
| Muddy Sound | Sounds are mixed together, lacking definition and spatial sense | 200Hz~350Hz | Attenuate 1~3dB | Using a High-Pass Filter (HPF) in conjunction yields better results. |
| Low-Freq Rumble | Persistent background vibrations, wind noise, footstep noises, etc. | 80Hz and below | Cut | Recommended to use a High-Pass Filter (HPF) to cut this band directly. |
| Lack of Brightness | Overall "dull" sound, lacking sparkle and vitality | 8kHz~12kHz | Boost 1~3dB | Boost moderately to add shine, but be cautious not to induce sibilance or high-frequency noise. |
| Lack of Air/Presence | Sound appears dry, lacking spatial ambiance and subtle detail/texture | 12kHz~16kHz | Boost 1~3dB | The effectiveness of adjusting this band is highly dependent on microphone quality; more perceptible on high-end mics. |