Stereo Test - Left/Right Audio Test for Headphones/Speakers

Quick sound check to make sure you are hearing left and right audio from the correct side. If you are hearing the speech from both sides, then something is mixing the audio. It could be hardware (headphones or a plug that only supports mono) or software ("mono audio" could be selected in the accessibility settings on your device, for example).

This will help you find out if your headphones or speakers are working properly, or if your other equipment, like a Bluetooth adapter, are playing truly stereo audio.

If this has helped you, please consider donating. Any amount is helpful.

0:00 Left
0:05 Right
0:09 Both
0:15 Quick review

[GabesHacks]

Loop this video if you need to hear it over and over while you troubleshoot.
*On desktop:* Right-click in the video and click "Loop".
*On mobile:* Tap the gear icon in the top right of the video. Tap "Additional settings" and turn on "Loop video".

[UnprotectedDesignFlaw]

can't believe it's so hard to find a simple left and right test these days.

glad I found your videoz thanks a lot 👍🏼

[Safrina]

You have a very pleasant voice. I know this because I used this hundreds of times over the past few days while really struggling through my first attempt at a headphone jack replacement, and by the end of it I still felt no anger, frustration or violent urges listening to you speak. Thanks for helping me get through it!

[dotsondotson]

I like this, straight to the point. No flashy intro, or the "Welcome back everyone, its ya boi!".

[Nzer]

Thanks, this is perfect. No shitty intro or lame music.

[DhairyaSoodo]

crazy how this guy's still responding and hearting the comments, genuinely much better than modern creators

[JakeS-UTTP]

This is literally a life saver as I am constantly paranoid that the audio isn't playing through my headset when I listen to music and watch YouTube at night.

[cps]

After almost half an hour of searching, I finally found this video, straight, to the point, and SPOKEN WORDS describing which channel is which for those of us who want to test their audio systems without a video screen. Thank you for this still perfect five year old video.

[pianodancebandkentcounty]

Perfectly structured video, the best one of its kind that we have found. One of our bandmates has impaired hearing in his right ear. After carefully using this video, we can now adjust our studio playbacks to just the right pan, for him to hear exactly what we hear, in terms of L-R balance. Thank you so much for this!

[quanti]

Absolutely brilliant! Turns out I've been wearing my Sennheiser headphones backwards for like 6 months until I stumbled on the simplest of tests.

[noel]

Thanks for this, brought a new pair of headphones and the left side is so quiet to the point where I thought I paid £60 for broken headphones but I could hear this clearly and without issues so it must be something else causing the issues. Straight to the point with no waffling about. Cheers!

[KillerAceUSAF]

Legit one of the most helpful videos on YouTube for someone setting up their stuff after moving. No guessing which speaker is the right side or left side, just a simple video.

[jaidvance]

Very simple yet direct. Very practical and straight to the point, I like it. Thank you!

[DoctorPoopenFarten]

0:10 I was unironically stressing over this part. Thank God my earphones aren't imbalanced

[lewa]

Simple and to the point with this test
Well done
Even 6 years later people still find this and use it
No wonder this has 3.3 million views
Thank You Gabe's Hacks for making this 6 years ago

[Egress]

Thank you so so much
This is the best test I've found on here so far
I was using the test to fix my headphones which I botched this morning

[Ncknme]

this is actually very helpful! I always keep this on loop on the background to know when my audio bugs. Great video

[trioultimo]

finally one proper test, where you have different sounds for separate speakers

[lunastarseeker]

Thank you! I haven't used my Bluetooth headphones in years and forgot the config I had it on, but had no way of figuring out if my config was correct. To-the-point vid, definitely saving for the future.

[autodidacticartisan]

People like you make the world a better place.