Voice acting microphone and home studio setup: what to buy, how to set it up and how to test it

The best voice acting microphone for a beginner is a cardioid microphone matched to the room you record in: a dynamic mic if your space is noisy or untreated, a large-diaphragm condenser if you have a quiet, treated closet or booth. Pair it with an audio interface (or choose a USB mic for simplicity), a pop filter and closed-back headphones, then test the result against a published standard such as ACX's before you audition.

The room matters at least as much as the microphone. Microphone maker Neumann notes that with a quiet modern condenser "the dominating factor is neither the mic nor the preamp but the ambient noise in the room" (Neumann). An ACX producer who spent heavily on soundproofing found "that it was the cheap mic that I was using that was generating most of my noise floor" (ACX Blog). Both can be true: fix the loudest problem first, whichever it is.

What a basic setup includes: a cardioid microphone, a way to get it into a computer (USB or an XLR interface), a stand and pop filter, closed-back headphones, free recording software, and a dead-sounding corner, closet or booth.

The two main microphone types trade sensitivity for noise. RØDE puts it plainly: "Dynamic mics are less sensitive than condenser mics by design," and condensers are "more likely to pick up background noise if you're in an environment that is not well soundproofed" (RØDE). Shure adds that a condenser's crisper sound can also pick up vent hiss and mouth noise, while dynamics tend to mask those irritants (Shure).

• Choose a dynamic if you hear traffic, neighbors, air conditioning or a fridge where you record, or the room has hard floors and bare walls. You work close to it: RØDE suggests about 2 to 6 inches from the diaphragm (RØDE).
• Choose a condenser if you have a quiet, treated space such as a padded closet or booth. RØDE says condensers suit spaces with "minimal background noise and few reflective hard surfaces," and can sit a little farther away, about 4 to 8 inches (RØDE). Voice actor Dee Bradley Baker's home studio guide says "a condenser mic is best" for voiceover, assuming a booth that blocks outside noise and deadens echoes (Dee Bradley Baker).
• Mind the gain. Neumann explains that dynamic mics "have such low sensitivity that they require lots of gain," and that most of the hiss you hear when you turn the gain up is amplified microphone noise, not the preamp (Neumann). Shure says its popular SM7B dynamic needs you "within two or three inches" and a good interface or mic signal booster (Shure). Check a dynamic mic's output against your interface before you buy.

Whichever type you choose, pick a cardioid pattern. Neumann describes cardioid mics as "great for recording vocals": they pick up mostly what is in front, and "sound from the rear is greatly rejected" (Neumann). Cardioids also have proximity effect, "an increase in bass response as you move closer to the mic," which can warm a read but turns boomy if you lean in and out, so keep your distance steady.

A studio microphone has a three-pin XLR plug and a low analog signal, so it cannot go straight into a laptop. Neumann lists what it needs in between: power, a preamp, an analog-to-digital converter and a digital connection, which an audio interface provides in one box (Neumann).

• USB microphone. Preamp and converter are built in, so it plugs straight into the computer. It is the simplest start, but Neumann's view is that USB mics "do not deliver studio grade audio quality" and are designed for simple tasks such as podcasts (Neumann).
• Hybrid mic or adapter. Some mics have both USB and XLR outputs, and small XLR-to-USB interfaces exist; Shure sells both kinds (Shure). Neumann says an adapter lets you use a better microphone but "won't unlock the full potential" of one (Neumann). A hybrid lets you start on USB and move to an interface later without replacing the mic.
• XLR mic and audio interface. The standard home studio route, and the easiest to upgrade one piece at a time. Neumann suggests about 200 dollars as the minimum for a decent interface (Neumann); Baker names a one-input Focusrite Scarlett Solo as an "easy and cheap" option (Dee Bradley Baker). An ACX producer's advice is to choose an interface "with a good preamp" that adds little noise (ACX Blog).

Phantom power, in one paragraph. Condenser mics need power for their electronics, sent down the XLR cable as phantom power; studio mics typically run on 48 volts (Shure). Dynamic mics do not need it, and Shure says phantom power will not damage other microphones "in the vast majority of cases," but check the manual first, especially for a ribbon mic. Neumann's routine: use an XLR female-to-male cable into the interface's XLR input (not the quarter-inch jack), no adapters in between, and "always connect your mic(s) first, before you turn on phantom power" (Neumann).

Two separate problems ruin home recordings: noise coming in (traffic, appliances, fans) and echo bouncing around (hard walls, floors, windows). Soft furnishings fix echo; only distance, timing and switching things off fix most noise.

1. Find the quietest spot. Record a minute of silence in each candidate room and listen back on headphones. An Audible post-production associate lists what to hunt for: ticking clocks, refrigerators, outdoor noise and computer fans (ACX Blog).
2. Use a closet if you have one. Clothes absorb echo. The same associate recorded in a noisy apartment building with window air conditioners by "hanging packing blankets and winter coats in my closet, positioning a microphone in there" (ACX Blog). Baker agrees that room echo "can be muffled cheaply with a closet or acoustic blankets" (Dee Bradley Baker).
3. Avoid bathrooms and corners. Neumann calls bathrooms "usually too ambient" and advises avoiding room corners and reflective surfaces; a bedroom or living room is often good enough (Neumann).
4. Move the computer. ACX's advice is to avoid recording with a laptop or anything else with a cycling cooling fan near the microphone (ACX Blog).
5. Treat what is around the mic first. Start with blankets, coats or foam behind you and around the mic, then re-record your minute of silence and compare.

• Distance. Shure says moving the mic closer (within 2 to 12 inches) raises your voice relative to room noise (Shure). Use the ranges above for your mic type, mark the spot, and keep it the same every session so takes match.
• Pop filter. Plosive P and B sounds hit the capsule as bursts of air. Neumann recommends a pop screen at least 4 inches (10 cm) from the mic, angled slightly so sound does not bounce between screen and capsule; it notes engineers do not agree whether fabric or metal mesh is better, and that foam windscreens are much less effective against pops (Neumann).
• Angle. Neumann also suggests a mic placed above, about eye level, angled down toward the mouth, so breath passes under it (Neumann). Baker hangs his at about nose level, angled slightly back (Dee Bradley Baker).
• Gain. Set it while reading your loudest line. Neumann advises leaving about 10 dB of headroom above the highest peaks and recording at 24 bits; there is "really no need to max out the converters" (Neumann).
• Headphones. Neumann says decent headphones "are a must" and to get closed-back ones, since open-back headphones leak into the mic (Neumann).

You do not need expensive software to record a voice. Baker names Audacity and Ocenaudio as free options and TwistedWave and Adobe Audition as paid ones, and advises against GarageBand for voiceover because it records stereo at 44.1 kHz by default (Dee Bradley Baker).

• Record mono. One voice, one microphone, one channel.
• Auditions: Baker's rule of thumb is an MP3 for auditions and a 24-bit, 48 kHz mono WAV for paid work, kept unprocessed with no effects unless the client asks (Dee Bradley Baker). Always follow the specs in the casting notice when they differ.
• Audiobooks: ACX requires 192 kbps or higher constant-bit-rate MP3 at 44.1 kHz, one chapter per file, no file longer than 120 minutes, all files in the same mono or stereo format (ACX).
• Keep a raw copy. Save the unedited take before you clean it up, so you can redo an edit or deliver a different format.

ACX publishes a full technical spec for audiobooks, and it makes a useful test for any home setup (ACX):

• Peaks below -3 dB.
• Overall volume between -23 dB and -18 dB RMS.
• Noise floor below -60 dB RMS.
• 1 to 5 seconds of room tone at the start and end of each file.
• No plosives, mic pops, mouse clicks, excessive mouth noise or outtakes.

The noise floor is the number that tells you about your room and gear. To check it in Audacity, record a short read with a few seconds of silence, then follow Audacity's audiobook mastering steps: a "Low roll-off for speech" filter, loudness normalization to -20 dB RMS, a soft limiter at -3.5 dB, then Analyze > ACX Check (a plugin you install separately) to read peak, RMS and noise against ACX's targets (Audacity). If the noise floor fails, go back to the room and the gain before buying a new mic.

One honest limit: a meter reading is not the whole test. ACX also requires consistent levels, tone, noise and spacing across the whole book and files free of mouth noise and outtakes (ACX). Fix the source first.

Once you book, some clients want to direct you live while you record at home. Source Elements calls Source-Connect "the industry-standard remote recording software"; its Talent tier is aimed at voice and music performers, supports stereo at up to 48 kHz, and the current licenses need a yearly network access subscription, with a 15-day free trial (Source Elements). Baker names Source-Connect and ipDTL as the usual tools, advises a wired Ethernet connection rather than Wi-Fi, and says to record a local backup because remote streams can drop out (Dee Bradley Baker).

You do not need either one to start auditioning; most auditions are files you upload. Learn the tool when a client asks, and do a test session first.

Our suggested order, built from the points above, spends money where it fixes the biggest problem first:

1. Room first. Closet, blankets, coats, appliances off, computer away from the mic. Costs little and helps every later purchase.
2. Headphones and a pop filter. Closed-back headphones let you hear your own noise and mouth clicks.
3. Microphone matched to the room. Dynamic for a noisy room, condenser for a quiet treated one, cardioid either way. Baker's guide suggests about $200 to $400 for an acceptable new mic and notes used mics are an option (Dee Bradley Baker).
4. Interface with enough clean gain for that mic, or a USB or hybrid mic if you want one cable for now.
5. Test, then upgrade one piece. Run the ACX checks. Change one thing at a time so you know what helped.

Gear does not book jobs on its own. Training and reads do, and the voice acting guide covers the order to build skills, demo and auditions; voice over jobs covers where to send your first files.

• Free setup help for union members. The SAG-AFTRA Foundation's virtual Voiceover Lab offers members free 50-minute sessions with an audio engineer, including "technical help with their home setup," connected over Source-Connect (the free version is enough). You need Chrome, a stable connection and a quiet space. Virtual sessions run Monday to Wednesday 7 a.m. to 2 p.m. PT and Thursday to Friday 10 a.m. to 5 p.m. PT (SAG-AFTRA Foundation).
• Booth time in class. A voiceover class with real microphone time is the fastest way to hear how a professional booth should sound. Compare schools, prices and schedules on Arlo's voiceover classes in Los Angeles page, check what training costs on the LA Acting Class Price Index, and audit a class before paying.
• Practice copy. For audiobook-style practice, read published prose; for character and monologue material, Offbook has scripts and monologues to rehearse from.
• Your demo. When your setup passes the tests above, see the acting demo reel guide before paying anyone to produce a demo, and how much voice actors make for what the work pays.