On the other hand, if you wanted to use external speakers or headphones, it can cause issues if your sound settings aren’t configured just right because HDMI itself is also an audio out port in addition to video out.
In this piece, we’ll walk you through how to make sure your audio out is going to the right place.
Problems that can arise
Over the weekend, I decided to sit back and watch some Star Wars movies using the new Samsung smart TV I got for Christmas, but when I connected my Mac to the TV and started to play my movie, the sound was all coming out of the TV instead of my Klipsch ProMedia 2.1 sound system despite the fact that I had the speakers plugged in via the 3.5mm headphone jack on the left side of my MacBook Pro.
The sound was loud coming from the TV, so I decided to try and adjust it with the volume keys on my keyboard only to find the following prompt come up when attempting to press the volume up and volume down keys:
So what gives? – It turns out OS X is designed to automatically route all sound out of the HDMI port to the device where the video is being played, so the sound was all being handed over to the TV for the TV to handle, forcing me to use my TV remote to adjust the volume.
Not only wasn’t this ideal, but I wanted the audio to play on my speaker system while the video played on the TV so I’d get the full effect of lows, mids, and highs from my speaker system. After all, and as Meghan Trainor would agree… I’m all about that bass, ’bout that bass, no treble.
On a more serious note, fixing the problem was pretty easy, and if you find yourself in a similar scenario as me where you want to use a speaker system for your sound instead of your TV when you’re using your Mac to play a video and are using the HDMI port to send video signals to your TV, then all you have to do is hold down the Option key while clicking on the Volume icon in the Menu Bar and you’ll find more options than just a volume slider.
Doing this shows options for selecting an output device, as well as an input device, and if you have both an HDMI device connected, as well as headphones or speakers, you should see both of them in the output device list. In this case, you can see my speakers listed as “Headphones” and you can see my TV listed as “SAMSUNG.”
If I wanted to have my sound play from my speaker system, all I would need to do is click on “Headphones” from this list instead of “SAMSUNG.” When I was having the issue with all sound being uncontrollable from the Mac and being routed to the TV, “SAMSUNG” was selected from the list, but after picking “Headphones,” all the sound began coming from my speaker system and I was able to use my Mac’s volume up and volume down keys to adjust the volume once again.
Note: You can also go to System Preferences > Sound to view a list of input and output devices, but the interface isn’t as simple and sweet as the one above.
But I don’t have a volume icon in the Menu Bar
If you don’t have a volume icon in the Menu Bar to click on, then you will have to enable it from the Mac’s System Preferences app. This is done with the following steps:
Step 1: Launch the System Preferences app on your Mac and navigate to the “Sound” section.
Step 2: Click on the “Show volume in menu bar” option to select it and enable it. A blue check mark means the option is turned on.
Step 3: Verify that the volume icon is now present in your Menu Bar – you can click it to reveal a volume slider, or hold the Option key and click it to reveal a list of input and output devices.
The end result
After having made sure that your sound is being routed to the source you want, you’ll get the best of both worlds – HD video on your TV, and rich sound delivered through your speaker system.
Those using a VGA connection on an older TV won’t have this problem because VGA doesn’t handle audio out – HDMI on the other hand, does. When using an HDMI connection, you will have to choose which audio out you want to use, and in my case, it just happened to be the sound-rich speakers that I wanted to use instead of the muffled built-in TV audio.
If you’re using an HDMI-capable TV, but are not using any kind of speakers or headphones, then you can disregard the problem this piece is trying to address, unless of course, you wanted your sound to play from the Mac’s internal speakers instead of the TV’s speakers, which would seem like an unlikely scenario.
If you found this piece helpful, let us know in the comments below.
Top image via MacWorld