Comment by nathan_f77

6 years ago

Wow that's crazy. I didn't know they did stuff like that.

Also I didn't know Google had patents for syncing audio across phones. I wonder if any of the mobile apps (like AmpMe [1]) have to pay some license fees.

I once spent an evening researching the different apps that could sync audio across multiple devices [2]. I also wanted to build my own app, so tried to see if it would be possible (only if you have a jailbroken phone.) I just wanted to play the same audio on two pairs of AirPods. I found out that the Samsung Galaxy S9 has a Dual Audio feature, and the iPhone X can theoretically support this with Bluetooth 5.0. And the AmpMe app can sync audio across multiple phones. (I was also really surprised to find out that they're a pretty huge company with 20 full time employees.)

[1] https://www.ampme.com

[2] https://www.evernote.com/l/ACo7ItT-pItKkZoYf0YJy0raGhN5255FR...

> AmpMe app can sync audio across multiple phones. (I was also really surprised to find out that they're a pretty huge company with 20 full time employees.)

The owner is a sketchy guy that made his money using adware (and still is) named Wajam.

I guess AmpMe is what he hope will be his legit way to make money. Until it happens, it's probably bleeding money and is founded by his adware company.

I mean I don't have any context, but surely this is a similar technology they have implemented with their Google Home speaker system?

  • Oh, right! I've heard of Sonos, but I didn't know you could sync up multiple Google Home speakers. Yeah I guess that's probably the main reason for having those patents.

Cool ours syncs audio on any IP device..desktop, laptop, tablets, phones, IOT devices, whatever

  • Is that not a fairly simple technology? You're basically measuring latencies (for which there exist very accurate solutions) and accounting for clock drift (again not difficult - USB audio did that many many years ago).

    I guess you can get fancy if the devices have microphones but I still think it wouldn't be difficult. Like one man-year worth of work.