Hi,
I would like to make a speaker system where voices seem to move around an area. As people walk up the driveway voices travels around them. Back in the bad old days I had an 8 track player and quadraphonic speaker system that played Dark Side of the Moon. I always loved it. Today I'm thinking a 5.1, 6 channel surround sound setup will work well. I can make a 6 channel file in Audacity but I'm not sure what to play it on. I'm not up to date on the systems. I would like to keep it cheap so the quality doesn't have to be great. Can someone give me some ideas on what player and or converter to use?
I have done this several ways.
The first time I tried to synchronize audio, I used to a dirt cheap media player called the NBOX. They were $20 and could play from USB or SD card. They'd power up and play audio files or video files and repeat endlessly. We created synchronized audio by having a few of them on the same power strip, going into cheap Pyle $50 amps and cheap $33/set marine speakers, and they'd play mostly in sync. There would be a bit of a drift, so during the evening we'd just power cycle and sync them back up. Not great, but cheap.
Next, we used a 5.1 surround sound USB sound card and a cheap $199 netbook running Windows. I used Audacity to create a multi-channel WAV file, and it would play them from each speaker. We had a stack of cheap Pyle amps powering the speakers, so it was prolly around $500 to do it.
At home, I used a cheap "surround sound" DVD player. It had rear left/right, front left/right, center and sub. I used Final Cut Express on my Mac to create surround sound audio and played it on the DVD. I could get discrete audio from each speaker. (I put different Disney Haunted Mansion tracks in each speaker.) You might be able to pick up one of those pretty cheap -- I've seen surround sound setups at Costco for $199. I just sold that DVD unit for $25, so you might just see about picking up a cheap used one to experiment with. Mine could play off DVD or a USB flash drive.
That said ... if you just want synchronized audio, a dirt-cheap Raspberry Pi and a USB hub loaded with cheap $2 (yeah, $2!) USB "sound cards" can do it. You still need amps, but much to my surprise, people are having much success with this. But Linux is a hassle and there's a learning curve.
I hope to offer a turnkey kit for doing synchronized audio. There's some good stuff available today that wasn't around ten years ago when I was first experimenting.