How to get audio across the room

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Aug 19, 2018
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I need to get audio from a computer (via 3.5mm audio jack) across the room at 55 feet away into a sound board. Running an audio cable would be easiest, but am not able to do that. Any ideas? Wifi, BT, or something else?
 

Nobu

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You could route it via wifi direct connect between two rpi's or a computer and an rpi. Pulseaudio supports network audio if you use Linux, or there are probably some alternatives.
 

Nenu

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Use waveguide speakers to beam the sound across the room to a board that reflects+directs it to your seating position.
Its 'possible' but is gonna take a long time to get it something like ok. Even the material the sound bounces off must be well selected and may need to be a large elipse.
Far easier to use wireless lol.

If it were me I would run wires.
You can get practically invisible wire but dont go too thin.
Fat wire is better for audio over a single wire pair (especially long distance) otherwise bass gets strangled.
Run wire round the edge of the carpet, choose the colour to match.

edit
Oxygen Free Copper wire will help prevent high frequency loss over long distance, its readily available at good price, labelled as OFC.
There are other ways to combat this but then it stops being simple.
 
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N4CR

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If delay isn't an issue get a phone with a good dac (V series LG etc) and run it via WIFI then you have your 3.5mm at the other end.
I tried an app called 'soundwire' on my v30 and it worked and sounded great. Only issue is processing delay.

Other than that there are other programs that can go wifi-wifi.. or just put a nas/remote PC there over WIFI. If you don't want wifi there are laser based systems but you are getting pricey.

Also if you are not aware there is low profile (flat) audio cable as well, as Nenu says at minimum you want OFC, you can also look at making braided CAT5E or 6 etc (whatever grade they start forcing OFC) for this too. I run a 15-20m Audioquest 3.5mm which is about the length you need (55ft) to keep things simple on my setup. It's not hard to hide a cord if you can pull carpet or have curtains to run it along. Or don't have a barebones empty echo-chamber ;D

Good luck
 
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B00nie, the WLS approach sounds like it might work. My application is in a church. The stage has a VGA connection that goes from the stage to our soundboard, but there is no audio in VGA. When we have guest speakers, they usually bring their laptops to use on the stage. We have an HDMI to VGA converter that works well, but we also need audio for when they have PowerPoint with embedded videos (with sound). So, the audio would need to connect to the laptop's 3.5mm connector, then connect at the other end into our soundboard 50 feet away.
 

B00nie

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B00nie, the WLS approach sounds like it might work. My application is in a church. The stage has a VGA connection that goes from the stage to our soundboard, but there is no audio in VGA. When we have guest speakers, they usually bring their laptops to use on the stage. We have an HDMI to VGA converter that works well, but we also need audio for when they have PowerPoint with embedded videos (with sound). So, the audio would need to connect to the laptop's 3.5mm connector, then connect at the other end into our soundboard 50 feet away.
I haven't personally tried the Dayton audio solution but since it's essentially a wifi stream, it should be low latency and high bandwith. And it doesn't cost much to try.

By the way, if you want a proper sound solution to your church, look for Danley labs horn speakers... They can eliminate the reverb issues your church most likely has.
 
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toast0

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B00nie, the WLS approach sounds like it might work. My application is in a church. The stage has a VGA connection that goes from the stage to our soundboard, but there is no audio in VGA. When we have guest speakers, they usually bring their laptops to use on the stage. We have an HDMI to VGA converter that works well, but we also need audio for when they have PowerPoint with embedded videos (with sound). So, the audio would need to connect to the laptop's 3.5mm connector, then connect at the other end into our soundboard 50 feet away.
How's the VGA wired? Maybe you can do terrible things and free up a path for audio. For example, it's common to do vga -> 5 bnc for long runs; a terrible person might combine the sync signals on stage, and split them at the soundboard/projector; then you'd have a wire freed up for audio.
 
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