Question 1

What noise floor standard do voice acting recordings need to meet?

Accepted Answer

Broadcast and audiobook standards typically require a noise floor of -60 dBFS or lower (some specs require -65 dBFS). ACX (Amazon's audiobook platform) requires a noise floor of -60 dBFS or lower with a signal-to-noise ratio of at least 35 dB. For commercial VO delivery, clients and studios often specify -55 to -65 dBFS noise floor. These standards are achievable from a home studio with proper acoustic treatment and/or AI noise removal post-processing. Voice Isolate can significantly lower the noise floor of home recordings to meet professional specs.

Question 2

Can I submit Voice Isolate-processed recordings to ACX?

Accepted Answer

Yes — ACX and other audiobook platforms care about the final audio quality, not the tools used to achieve it. If the processed recording meets ACX's technical requirements (noise floor ≤ -60 dBFS, peak amplitude -3 to -6 dBFS, RMS -18 to -23 dBFS), it's acceptable regardless of post-processing. Check your processed files with ACX's free online checker tool before submitting. Many home narrators use noise reduction as part of their standard workflow.

Question 3

How do I check if my voice over noise floor meets broadcast standards?

Accepted Answer

To measure your noise floor: in Audacity, select a section of silence (between phrases, not during recording), go to Analyze > Measure RMS — this shows your noise floor in dBFS. For a more thorough check, use Adobe Audition's Amplitude Statistics or iZotope Insight. ACX's online submission checker also measures noise floor automatically. Target -60 dBFS or lower for ACX; -55 dBFS for most commercial VO; and -50 dBFS minimum for any professional application. If above these thresholds, Voice Isolate processing can help reach the target.

Question 4

Is a closet recording setup good enough for professional voice acting?

Accepted Answer

Yes — a properly set up closet recording space can meet professional broadcast standards. The key elements: closet packed with clothes on all sides (natural absorption); a dynamic microphone (not condenser) like the Audio-Technica AT2020 or Shure SM7B; a quality audio interface (Focusrite Scarlett); a microphone arm to position the mic correctly without it touching reflective surfaces. Many professional voice actors record exclusively from home closet setups and deliver to major networks, video game studios, and audiobook publishers. Voice Isolate handles any remaining noise that closet treatment doesn't fully address.

Noise Reduction for Voice Acting

Voice acting recordings must meet professional broadcast standards — any detectable background noise causes rejection of auditions and delivery files.

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