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How do you effectively process voiceovers to avoid that robotic, awkward sound?
The human ear can detect sounds as quiet as -20 decibels, making it essential to record voiceovers in a quiet environment with minimal background noise (.1 db).
When recording voiceovers, the microphone should be placed at least 6-8 inches away from the mouth to reduce mouth-propagation effects and focus on the speaker's voice (diffraction).
There is a sweet spot for recording levels, where the audio peaks at around -10 to -6 decibels for optimal voice quality (audio threshold).
Plosive sounds like "p" and "t" can produce explosive sounds that disrupt the recording, so soft consonants like "s" and "sh" are better choices for voiceover recordings (speech synthesis).
Voiceovers should aim for a frequency range of 100 Hz to 12,000 Hz to ensure clear and crisp audio, as the human ear can pick up frequencies within this range (hearing threshold).
Room resonance can be mitigated by placing a microphone 6-12 inches away from the wall to reduce echoes and reverberations (acoustics).
Compression settings on recording software can improve dynamic range by reducing loud noises and amplifying soft ones, making voiceovers more even and polished (signal processing).
Treating a recording space with acoustic panels, DIY sound-absorbing materials, or professional-grade equipment can significantly reduce reverberation and echos (acoustics).
Frequency-response filtering can help reduce unwanted noise and improve audio quality by targeting specific frequency ranges (audio processing).
Some voice actors use unconventional techniques like pencils as filters to reduce high-frequency sounds; however, scientific evidence supports using professional-grade equipment and software instead (psychoacoustics).
Monitoring audio levels and using a limiter can prevent audio peaks and distortion, ensuring a clean and polished recording (signal processing).
Audio editing tools can help control room noise, echo, and reverberation by selectively removing or reducing unwanted sounds, making voiceovers sound more professional (audio post-production).
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