Connect your turntable to your computer with an audio cable

To play turntable music through computer speakers, you need a physical cable running from your turntable's audio output to your computer's audio input. Most turntables have two red and white RCA jacks on the back (or sometimes a single 3.5mm headphone jack). Your computer likely has a 3.5mm line-in jack, usually marked with a microphone symbol or a small arrow pointing inward.

If your turntable has RCA jacks and your computer has a 3.5mm input, buy an RCA-to-3.5mm adapter cable—these cost $5 to $15 and are available at any electronics store. If both your turntable and computer use 3.5mm jacks, a standard audio cable works. Plug the cable firmly into both devices; a loose connection will produce no sound or crackling audio.

Key Takeaways

  • You need a physical audio cable connecting your turntable's output to your computer's line-in jack, or an adapter if the connectors don't match.
  • Your computer's audio input must be set as the active recording device, and the turntable input must be selected in your audio software.
  • Most turntables require a preamp to boost the signal loud enough for computer speakers; check your turntable's manual to see if one is built in.
  • Test the connection by playing a record at low volume and checking your computer's sound settings to confirm audio is coming through.
  • If you hear no sound, check that the cable is fully inserted, the correct input is selected in your computer's settings, and the turntable's volume is not at zero.

Set your computer's audio input to line-in

Once the cable is connected, your computer needs to know it should listen to that input. On Windows, right-click the speaker icon in the bottom right corner of your screen and select "Open Sound settings." Scroll down to "Advanced" and click "App volume and device preferences." Find the audio software you plan to use (or any program that plays sound) and change its input device to your line-in jack—it may be labeled "Microphone," "Line In," or "Stereo Mix," depending on your sound card.

On Mac, open System Preferences, go to Sound, and click the Input tab. Select your line-in jack from the list. If you don't see a line-in option, your Mac may not have one built in; in that case, you will need a USB audio interface (a small box that connects via USB and provides audio inputs). These cost $30 to $100 and are more reliable than relying on an older Mac's audio jack.

Check whether your turntable has a built-in preamp

A preamp is a small amplifier that boosts the turntable's signal to a level your computer can use. Some turntables have one built in; others do not. If your turntable has a switch labeled "Phono" and "Line" (or "Preamp On" and "Preamp Off"), it has a built-in preamp—make sure the switch is set to "Line" or "Preamp On" before connecting to your computer.

If your turntable has no such switch and no preamp, the audio will be very quiet or inaudible through your computer speakers. In that case, you have two options: buy a standalone preamp (around $30 to $150) and place it between the turntable and computer, or use audio software that can amplify the incoming signal. Many free programs like Audacity can boost a weak signal, though this is less ideal than a hardware preamp because it can introduce noise.

Open audio software and select the turntable as the input source

You can listen to your turntable through your computer speakers using any audio software that accepts line-in input. The simplest option is to use your computer's built-in audio player or a free program like VLC Media Player, but these will only play audio that is already recorded. To listen to a record in real time, use audio software designed to monitor an input source.

Audacity (free, available for Windows and Mac) is the most straightforward choice. Open it, go to Transport menu, and select "Transport Options." Check the box for "Software Playthrough." Then, in the dropdown menu at the top left that says "Microphone" or "Line In," select your turntable input. When you press the play button (or straightforward start playing a record), you will hear it through your computer speakers. Other options include OBS Studio (free, designed for streaming but works for audio monitoring) or your audio interface's control software if you are using a USB device.

Test the connection at low volume

Before playing a full record, test with the turntable's volume set to about 25 percent. Place the needle on a record and listen for sound through your computer speakers. If you hear nothing, check three things: first, confirm the cable is fully inserted into both the turntable and computer; second, verify in your computer's sound settings that the correct input device is selected; third, make sure your audio software is set to monitor or play the turntable input, not your microphone or another source.

If you hear sound but it is very quiet, your turntable likely lacks a preamp or the preamp is switched off. Gradually increase the turntable's volume to see if it gets louder. If it does, the connection is working—you just need a preamp. If the volume does not increase even at maximum, the cable may be faulty or the connection is not properly set in your software.

Adjust volume levels to avoid distortion

Once you confirm audio is coming through, set the turntable's volume to a comfortable listening level—usually between 40 and 70 percent. Then adjust your computer's speaker volume using the speaker icon in your system tray. Start low and increase gradually. If the sound becomes distorted or crackles, lower the turntable's volume slightly; distortion usually means the signal is too strong for your computer's audio input to handle cleanly.

If your audio software has its own volume slider (Audacity does, as does VLC), leave it at 100 percent and control volume using the turntable and computer speaker controls instead. This gives you the clearest sound and the most control. Never max out all three controls at once—that is the fastest way to create feedback or damage your speakers.

Troubleshoot common problems

If you hear a loud hum or buzz instead of music, the cable may be picking up electrical interference. Try moving the cable away from power cords, USB hubs, or other electronics. If the hum persists, your turntable or computer may have a grounding issue—check that both devices are plugged into the same power outlet or power strip. Some turntables have a separate ground wire that should be connected to your audio interface or preamp; consult your turntable's manual.

If the sound cuts out or drops frequently, the cable connection may be loose. Unplug both ends, inspect the jacks for dirt or debris, and plug in again firmly. If you are using an adapter, try a different one—adapters wear out. If you are using a very long cable (more than 10 feet), consider a shorter one; long cables can degrade the signal. For permanent setups, a USB audio interface is more reliable than relying on your computer's built-in audio jack.

Frequently Asked Questions

Can I use Bluetooth to connect my turntable to my computer?

Most turntables do not have Bluetooth built in. If yours does not, you would need a Bluetooth transmitter designed for audio, which adds cost and complexity. A wired connection is simpler, cheaper, and produces better sound quality with no lag or dropouts. Stick with a cable unless your turntable specifically advertises Bluetooth output.

Do I need special speakers or will any computer speakers work?

Any powered computer speakers (speakers with a built-in amplifier and a power cord) will work. Passive speakers—those without power—will not produce sound. If your computer speakers are very small or cheap, the sound quality will reflect that, but they will still play the turntable audio. For better sound, consider upgrading to powered speakers in the $50 to $200 range.

What if my computer has no audio input jack?

Modern laptops and some desktops have removed the audio input jack. In that case, buy a USB audio interface—a small box that plugs into your computer via USB and provides audio inputs on the back. These range from $30 to $150 depending on quality. Connect your turntable to the interface, then connect the interface to your computer. The interface acts as a middleman and is more reliable than trying to use a USB adapter.

Can I record the turntable audio to my computer?

Yes. Open Audacity, set the input to your turntable, and click the red record button. Play your record. When finished, go to File and select "Export" to save the audio as an MP3 or WAV file. This lets you create a digital copy of your vinyl records, though be aware that recording copyrighted music for personal use exists in a legal gray area depending on your country.

Why is the sound so quiet even with the turntable volume at maximum?

Your turntable almost certainly lacks a preamp or the preamp is switched off. Check your turntable's manual or the back panel for a Phono/Line switch. If it is set to Phono, switch it to Line. If there is no switch, you need to buy a standalone preamp and place it between the turntable and computer. Without a preamp, the signal is too weak for your computer to amplify cleanly.