What I am getting is latency of playback. When I watch youtube video, sound that goes from Rumble 40 is about half a second later than video on PC or cell phone.
I think, if you want to watch video and play synchronized audio to the amp, @G-Dog’s suggestion of hard-wiring is going to be your only guaranteed solution.Oh. So, how about about a 1/8" cable?
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Given the age of the Rumble Stage/Studio, it is likely that they are using an older version of the BlueTooth driver/codec. If this is the case, both devices will fall-back to the lowest common version level. Additionally, on a smart phone and on the amp, there isn’t really a whole lot of driver control (buffering, etc.) like there can be on a computer. So, you kinda get what you get; which can be anywhere from an “ideal” 30 ms up to 500 ms, such as you are experiencing.
If you are just playing audio to the amp with the purpose of playing along, latency is not really a problem; but, if you want to sync with video on the source device, hard-wiring offers near-light transmission speeds.
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