6 ms·
Things have probably changed since I last talked to my friends at a large state radio/tv broadcaster, but for long haul they used either MADI over fibre, or AES
by lflux 2y ago
Things have probably changed since I last talked to my friends at a large state radio/tv broadcaster, but for long haul they used either MADI over fibre, or AES50 into boxes from NetInsight along with SDI for the video feeds. This works so well that you can put the input/output converters in a venue hosting a live music and do the program audio mix in a control room at broadcast HQ 100s of kilometers away.
- amluto 2y agoAt 100s of km, you’d be pushing the limits for actual live sound, though. 100km is about a light-millisecond, and ordinary fiber is rather slower than light, so that’s maybe 3ms round trip per 100km. If a musician can hear themselves through monitors at too much more latency than that, it could start to get distracting.
- kijiki 2y agoIf the monitors are 3ft away from the musician, they're already looking at 3ms of latency just in the air between the monitor and their ear.
- _factor 2y agoThis is why you see headphones used in recording studios I’m sure.
- InitialLastName 2y agoYou see headphones used in recording studios because ambient sound (i.e. from a loudspeaker) has a habit of getting picked up by microphones.
- lflux 2y agoAs i understand it, the sound for audience in the venue and monitors for artists was run locally by separate mixer. The audio backhauled to HQ was for the live broadcast.
- mrb 2y agoLatency is 1ms for a round-trip through 100km of fiber (200km total).