Solo harmony overdubbers
If you record one vocal part at a time, you can concentrate on headphone monitoring and setting the level of one live microphone rather than buying inputs for every harmony track.
Who this setup suits
First-time vocal recordists
When you are both singer and engineer, gain assistance or easy-to-read meters can make setting an initial recording level more manageable. You still need to listen back to a test take.
Desk-studio expanders
If vocal projects also involve line-level instruments, MIDI equipment or different headphone and speaker mixes, count those connections separately from the microphones you need to record at once.
What matters when choosing
Decide how many sources must be recorded at the same time before choosing your monitoring setup and any connections for additional desk equipment.
Compact two-input interface
Choose it when: You overdub one vocal part at a time, with an occasional need to record two sources together.
Trade-off: Two analogue inputs leave no additional inputs for external line-level equipment while both are in use.
Interface with additional line inputs
Choose it when: Vocal recording shares your desk with line-level hardware, or you need separately configurable headphone and line-output mixes, as offered by the Focusrite Scarlett 4i4 4th Gen.
Trade-off: Focusrite specifies two microphone preamps on the Scarlett 4i4 4th Gen; its two additional inputs are line inputs, not two more microphone preamps.
| Concern | What to check | Who this matters to |
|---|---|---|
| Private monitoring | Check the headphone connector against your headphones or adapter, and whether live-input monitoring lets you hear the effects you want while recording. Focusrite says its Scarlett 2i2 4th Gen direct-monitoring path is heard without software effects. | I want to hear my vocal and earlier takes without playing them through study speakers. Around 40% of consumers would put private, controllable monitoring first. |
| Vocal level-setting | Check microphone compatibility, whether it needs 48 V phantom power, and whether gain assistance or visible meters suit the way you set levels. | When recording alone, I need a straightforward way to set a level before repeating harmony takes; about 30% of consumers would prioritise that setup. |
| Connections and routing | Count microphone preamps separately from additional line inputs. Check MIDI connections and whether headphones and line outputs can receive different mixes if you need them. | I plan to keep line-level equipment connected alongside my vocal setup, or give headphones a different mix from the speakers. Roughly 30% of consumers would make that flexibility their primary concern. |
Mistakes to avoid
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Counting harmony tracks instead of simultaneous sources
Recording each harmony as a separate overdub does not require a microphone input for every eventual track. One input cannot, however, capture two separate microphones at the same time.
List the microphones and line sources you might record simultaneously, then choose the corresponding input types and number.
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Assuming four inputs mean four microphone preamps
Focusrite specifies two mic/line/instrument preamps and two additional line inputs on the Scarlett 4i4 4th Gen. Its input count therefore does not provide four direct microphone-preamp paths.
Check the input types individually if you intend to record more than two microphones at once.
That setup may call for an external preamp or a different interface.
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Expecting software effects through direct monitoring
Focusrite explains that direct monitoring on the Scarlett 2i2 4th Gen lets you hear the input without passing it through the computer, but without software effects on that direct path.
If hearing reverb or other processing while singing matters to you, check the interface’s software-monitoring options and your computer setup.
Relevant brands to consider
These model lines offer different approaches to vocal recording; the connections and controls described here apply to the named models, not every interface from each brand.
Focusrite
The Scarlett 2i2 4th Gen covers two-source vocal recording in a compact setup. The Scarlett 4i4 4th Gen adds connections and more flexible output mixes for a desk with other equipment.
- Focusrite lists 69 dB mic gain, 48 V phantom power, Auto Gain, Clip Safe and a dedicated headphone output for the Scarlett 2i2 4th Gen.
- Focusrite lists two microphone preamps, not four, on the Scarlett 4i4 4th Gen despite its additional line inputs.
Audient
EVO 4 is a compact option for a singer setting up and recording without another person operating the controls.
- Audient specifies two mic preamps, Smartgain, a headphone output and monitor controls for EVO 4.
- Its two analogue inputs and two analogue outputs leave less room for additional connected hardware or separate output routing.
MOTU
M2 is a compact two-input option if you prefer to watch hardware level meters while setting up vocal takes.
- MOTU specifies two combo mic/line/Hi-Z inputs, individual 48 V and monitor switches, MIDI connections, a headphone output and a full-colour meter display.
- As a two-input, two-output interface, M2 does not provide additional line inputs for other hardware.
Joybuy products
Related products coming soon.
Common questions
Do I need two microphone inputs to record vocal harmonies?
No, not if you record each part separately with one microphone. Choose two microphone-capable inputs if you want to capture two singers, two mic sources or a stereo microphone pair simultaneously; the Scarlett 2i2 4th Gen, EVO 4 and M2 each have two microphone-capable input paths according to their manufacturers.
Can I hear vocal effects through direct monitoring?
Not through the direct path described in Focusrite’s Scarlett 2i2 4th Gen guide: it lets you hear the incoming signal without computer latency, but without software effects. If you want to sing while hearing effects from your recording software, check the chosen interface’s software-monitoring routing and how it performs with your computer.
What should I check about returns and support?
Check the seller’s terms for change-of-mind returns separately from your options if an interface is faulty, damaged or misdescribed. GOV.UK notes that repair or replacement may be required when a fault is discovered after goods have been accepted; also confirm who handles support and any software activation before buying.
What should I do with an old audio interface?
Treat an old interface as electrical waste rather than general household waste. If you are replacing it, ask the seller about same-type take-back: GOV.UK describes take-back responsibilities for retailers and distributors, with the applicable arrangements depending on the circumstances.