Active Noise Cancellation feature

[rbrak29]

In the latest Munro Live video, David Lau, VP Software Engineering at Tesla mentioned because they have gigabit ethernet that also transmits audio the Cybertruck will have active noise cancellation through the speakers. Any mention of this on Tesla's website? I do not see it mentioned on the Cybertruck 'Learn' page.

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[Hello4x]

My guess is because it’s a standard feature these days.

 

[Crissa]

Tesla didn't originally announce it when it showed up on the Model S, although it's now listed under 'Immersive sound'
https://www.tesla.com/models

-Crissa

 

[ituner-HF]

In the latest Munro Live video, David Lau, VP Software Engineering at Tesla mentioned because they have gigabit ethernet that also transmits audio the Cybertruck will have active noise cancellation through the speakers. Any mention of this on Tesla's website? I do not see it mentioned on the Cybertruck 'Learn' page.

I think the 2 x subwoofers will be a godsent for road noise cancellation.

 

[WHIZZARD OF OZ]

I think the 2 x subwoofers will be a godsent for road noise cancellation.

'Play It Loud'
Can't wait to feel the ' Immersive Sounds' from the CT.
btw. The song ' Heaven's Radio' that l co-wrote with Peter Farnan has the first line:
'God sent you to share my headphones'?
ps. Sandy Munro said welcome to 'CYBERTRUCK HEAVEN' when he talked with five members of the CT development team, including Franz V. and Peter Bannan ( former lead guy on iPhone 5) Worth watching (Again) if you're keen.....

 

[cvalue13]

My guess is because it’s a standard feature these days.

yeah I’m not following what gigabit ethernet in the truck means for offering something also in other cars

that the other car’s systems aren’t as good because they lack gigabit, or other cars also have gigabit

 

[Dazureus]

The major thing that the gigabit ethernet does is allows fewer wiring harnesses and desegregating the signals from their purpose CANbuses. In terms of audio, it doesn't do anything other than removing speaker wires coming from the head unit (or infotainment system) going to each speaker. I guess it's possible they could send higher bitrate sampling formats through gigabit ethernet since they have so much more bandwidth but from the fidelity of a single speaker, it doesn't change much.

However! since the Cybertruck has so many speakers in addition to drastically reducing the amount of speaker wire needed, it could also help with spacial synchronization. There's a tiny bit of propogation delay between speakers closer to a source vs. farther away. I'm not an audiophile, so I'm not sure if it's even percievable in the confines of a vehicle. But since the audio signals are sent using the deterministic TDMA protocol, all signal propogation can be mitigated since all the speakers "know" when they're supposed to play a sound.

 

[scottf200]

yeah I’m not following what gigabit ethernet in the truck means for offering something also in other cars

that the other car’s systems aren’t as good because they lack gigabit, or other cars also have gigabit

Explained at 20:28

mics and other sensors send data back to be processed and then that result can go out (blended "out-of-phase") to the speakers sound ... ie. speed of sending the data back, processing it, and doing something with results.

"millisecond latency and microsecond synchronization"

Active Interference: Unlike noise reduction which filters out incoming noise, noise cancellation actively "neutralizes" it before it reaches your ears. It uses microphones to capture incoming sound waves, analyzes them, and creates an "out-of-phase" sound wave that effectively cancels out the original noise wave. This works well for a broader range of noises, including low-frequencies and sudden changes.

Below doesn't seem like it is starting at 20:28!!


Interior[edit]
Tesla includes an active road-noise cancellation feature in the Cybertruck.[85]: 20:28 

 

[Bkb13]

It’s not gigabit ethernet, it’s ether loop

 

[Jhodgesatmb]

In the latest Munro Live video, David Lau, VP Software Engineering at Tesla mentioned because they have gigabit ethernet that also transmits audio the Cybertruck will have active noise cancellation through the speakers. Any mention of this on Tesla's website? I do not see it mentioned on the Cybertruck 'Learn' page.

It’s been mentioned here and there before. I think Tesla rolled it out for the S/X a while ago, but I do not have a reference, sorry.

 

[Jhodgesatmb]

It’s not gigabit ethernet, it’s ether loop

Those are not mutually exclusive. Gigabit Ethernet is just the bandwidth. Ether loop is really a PoE loop across nodes. Generally speaking hard wiring devices will get you very fast speeds. For example, I use CAT6 between switches in my house and I get over 700 mbps between them.

 

[scottf200]

It’s been mentioned here and there before. I think Tesla rolled it out for the S/X a while ago, but I do not have a reference, sorry.

Seems that was a "reduction" and did not really make much of a difference.
This sounds like "cancellation"

Active Interference: Unlike noise reduction which filters out incoming noise, noise cancellation actively "neutralizes" it before it reaches your ears. It uses microphones to capture incoming sound waves, analyzes them, and creates an "out-of-phase" sound wave that effectively cancels out the original noise wave. This works well for a broader range of noises, including low-frequencies and sudden changes.

https://insideevs.com/news/555369/tesla-active-road-noise-reduction/

 

[scottf200]

Those are not mutually exclusive. Gigabit Ethernet is just the bandwidth. Ether loop is really a PoE loop across nodes. Generally speaking hard wiring devices will get you very fast speeds. For example, I use CAT6 between switches in my house and I get over 700 mbps between them.

Start - Aside -Start

Test with a parallel stream -- some stuff I did with my kid when we added MoCA devices to his place (Network Adapter for Ethernet Over Coax) when coax existed but too hard to fish ethernet.

iperf3 -c <ip>
345 mpbs
Here I'm just doing the default iperf thing. The result isn't unexpected. MoCA adds some latency (4ms) that causes iperf's default TCP handling to max out in the 300's.

iperf3 -c <ip> -u -b 1G -l 32K -R
960 mbps
Here I tell iperf to send a 1000 mbps UDP stream with a 32K buffer in the reverse direction. I want the other end to send and my laptop to receive so that I can be confident that the speed iperf reports truly represents the MoCA bandwidth and not the rate at which my NIC can push them out. Obviously I get great results which proves these goCoax units are performing well.

iperf3 -c <ip> -P 5
930 mbps
Here I tell iperf to use TCP but with 5 parallel streams so that the added MoCA latency does not limit the results. Obviously I'm seeing great results with this test.

End - Aside - End

 

[Bkb13]

Those are not mutually exclusive. Gigabit Ethernet is just the bandwidth. Ether loop is really a PoE loop across nodes. Generally speaking hard wiring devices will get you very fast speeds. For example, I use CAT6 between switches in my house and I get over 700 mbps between them.

Gigabit is a measure of bandwidth.
Ethernet is a layer 2.
Ether loop is described below, and is not the same as Ethernet.

But when they talk about it during the Munro interview they use both terms. If you look up his video it starts at 14:00.

https://en.m.wikipedia.org/wiki/Data_link_layer

 

[Jhodgesatmb]

Gigabit is a measure of bandwidth.
Ethernet is a layer 2.
Ether loop is described below, and is not the same as Ethernet.

But when they talk about it during the Munro interview they use both terms. If you look up his video it starts at 14:00.

https://en.m.wikipedia.org/wiki/Data_link_layer

But the ether loop is power ‘and’ data so it is more like PoE than anything else, isn’t it? We do not care whether it is using Ethernet cable.

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