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Recording

Getting a microphone to make a sound

A silent condenser microphone is almost never a faulty microphone. It is a switch that has not been pressed.

By

Check in this order

One: phantom power. The button marked 48V or P48 on the interface. This is the answer most of the time.

Two: the input. A microphone plugged into a line or instrument input will be silent or nearly so. Use the microphone input on a combo socket.

Three: the gain. At zero, a working chain produces nothing.

Four: the cable. XLR end to end. An XLR-to-jack adapter does not carry phantom power, so a condenser stays silent through one.

Five: the software. The interface has to be selected as the input device, and the track has to be armed.

The two-minute test

Plug headphones into the interface and turn on direct monitoring. If you hear yourself there but not in the software, the problem is the software. If you hear nothing at either point, it is one of the first four.

And read the manual for your unit

Voltage, polarity and phantom power behavior differ between models. The manufacturer’s figures take precedence over anything written here.

The questions players ask

What is phantom power?

A 48 V supply sent from the interface up the XLR cable to run a condenser microphone’s electronics. Dynamic microphones do not need it; most condensers do not work without it.

Can phantom power damage a microphone?

It is safe for most microphones and not for every one — some ribbon microphones in particular. Check the manual for your specific model before switching it on.

Last reviewed 2026-08-18

The gear this assumes

Everything above works with what you already own. These are the products we would reach for, and each links to the full review rather than straight to a shop.

  • Audio interfaces

    Focusrite Scarlett Solo (4th Gen)

    2 in / 2 out · 120 dB dynamic range · Air mode

    One microphone preamp and one instrument input, with the same 120 dB converters Focusrite puts in its larger interfaces, an Air mode for presence, and a software bundle that is a large part of the value.

    Best for: A songwriter recording one part at a time who wants room to grow.

    7.8/10

    ≈ $130

    Check price on Amazon Read the review
  • Audio interfaces

    Behringer UMC22

    2×2 · Midas preamp · 48 kHz · USB powered

    The cheapest honest way into recording: one XLR/TRS combo input with a Midas-designed preamp, a separate instrument input, direct monitoring and USB power. Forty-eight kilohertz, and no pretense beyond it.

    Best for: A first interface for one voice or one instrument at a time.

    7.2/10

    ≈ $53

    Check price on Amazon Read the review