Choosing a Sony XLR Microphone

Choosing a Sony XLR microphone setup involves two decisions: the microphone itself, and how it connects to your camera or computer. Some Sony camcorders and cinema cameras have XLR inputs on the body or top handle. Many interchangeable-lens Sony cameras need a Sony XLR adapter that mounts in the Multi Interface Shoe. Any standard XLR microphone can work if the input supports it, so start with the input you actually have.

Before you start

Recording through an XLR microphone happens on the hardware itself. No online service or account is needed. However, some adapter features depend on the camera model and its firmware version. Check Sony's compatibility information for your exact camera before you buy an adapter or kit.

• Your camera or recorder model, and its audio inputs: XLR inputs on the body or handle, a Multi Interface Shoe, or only a 3.5 mm microphone jack.
• Whether that input supplies phantom power. Most condenser microphones need it, and dynamic microphones do not.
• Headphones and a headphone output on the camera, adapter or interface, so you can monitor while recording.
• For a computer or video calls: an audio interface with an XLR input. A computer cannot accept an XLR microphone directly.
• The job the microphone must do, such as on-camera speech, interviews, run-and-gun shooting or voice-over at a desk.

Step-by-step instructions

1. Confirm the connection path

• Sony camera with built-in XLR inputs: connect the microphone directly and use the camera's own input switches and level controls.
• Sony camera with a Multi Interface Shoe: use a Sony XLR adapter that lists your camera as compatible. Newer adapters, such as the XLR-K3M, can send audio digitally through the shoe to cameras that support this. With other combinations, the audio may pass to the camera in analog form. Confirm which mode applies to your camera.
• Camera with only a 3.5 mm jack: an XLR microphone needs a separate preamp, adapter box or external recorder. A plain XLR-to-3.5 mm cable cannot supply phantom power, and the level is often too low.
• Computer, streaming or video calls: connect the microphone to an audio interface, then select that interface as the input device in your operating system and in the app.

2. Match the microphone type to the job

• Shotgun microphone: mounted on camera or on a boom, aimed at one speaker. It favors sound from the front but still picks up room echo indoors. Sony supplies its ECM-XM1 shotgun in some XLR kits, so check the box contents of the specific kit.
• Wireless lavalier system with an XLR output: suits presenters who move or stand far from the camera. Check whether the receiver outputs mic level or line level.
• Handheld dynamic microphone: suits interviews in noisy places and needs no phantom power. It has a fairly low output, so it needs a clean preamp with enough gain.
• Studio condenser microphone: suits voice-over or desk recording in a quiet, treated room. It needs phantom power and picks up room sound easily.

3. Set power and input type

Lower the recording level before you connect or disconnect anything, to avoid loud pops. Turn phantom power on only for microphones that need it. Set the input to MIC for microphones. Use LINE only for line-level sources, such as some wireless receivers or mixers. Write down your original settings so you can return to them.

4. Assign channels and set the input level

A single microphone is mono. Decide which channel records it. If your adapter or camera can send one microphone to both channels, set the second channel lower as a safety track. Use manual level control where you can. Set the level while the person speaks at their real volume, so that the loudest words stay clearly below the top of the meter. Raise gain at the first stage, on the adapter or interface, rather than boosting quiet audio later in editing.

5. Check the sample rate on a computer

Cameras record audio in a format fixed by the video mode. With an audio interface, though, set the same sample rate in the operating system's sound settings and in your recording or calling app. 48 kHz is the usual choice for video. A mismatch can cause clicks, dropouts or a change in pitch.

Check the output

• Record a short test clip: normal speech at the planned distance, a few louder words, and a few seconds of silence.
• Play the clip back on headphones, not the camera speaker. Check which channel carries the microphone, whether loud words distort, and how much hiss or background noise is audible during the silence.
• Open the file on a computer and check the number of audio channels, sample rate and bit depth reported by your player or editor.
• For a computer setup, watch the input level meter in the app with the interface selected as the input device. Set the output device to headphones so the speakers do not feed back into the microphone.
• Judge the result from the recorded file. Live monitoring through a headphone jack does not always match exactly what is saved.

Common problems and next steps

• No sound at all: check that phantom power is on for a condenser microphone, that the input is set to MIC rather than LINE, and that the adapter is fully seated in the shoe. Also check that the camera's audio input setting matches the adapter, as described in the camera manual, and try a different XLR cable.
• Quiet or hissy audio: move the microphone closer to the speaker and raise gain on the adapter or interface. Dynamic microphones in particular may need more clean gain than a camera's built-in preamp provides comfortably.
• Distortion: lower the input level. Also check that a line-level source, such as a wireless receiver, is not plugged into an input set to MIC.
• Hum or buzz: move cables away from power leads, replace a damaged cable, and check for a ground loop if the camera and other gear share power.
• Background noise or echo: get the microphone closer, aim it carefully, or switch to a lavalier. Soften reflective rooms, and use a low-cut filter if your adapter or camera offers one.
• Audio on only one side: this is normal for a mono microphone on one channel. Send it to both channels on the adapter or camera if possible, or duplicate the channel in your editor.
• Interface missing in a calling app: select it as the input device in both the operating system and the app. Check whether the app applies its own noise suppression or automatic gain.

Before buying, write down your camera's audio input, decide between a shotgun, lavalier or handheld microphone, and confirm two things: whether the microphone needs phantom power, and whether the adapter is listed as compatible with your camera.