Had some unique concert audio recordings which had gotten corrupted when I moved the files during a backup. I had tried looking at the files and trying to recover them. It felt like they had the data but no software could play them.
Sat on them for 5 yrs. Finally decided to try if AI tools could help. Tool Copilot 20mins and a lot of mucking around with hex dumps. First couple of times it got a semi working solution (only first few seconds of a file were playable). Finally managed to recover all the files.
Sounds like something triggered a suspicious activity report. Not sure if it also applies to the likes of Apple but they’re forbidden from revealing any information about what caused it, etc with the customer or anyone.
> The Ingenic Zeratul, Atlas, and Tassadar platforms are a series of System-on-Chip (SoC) solutions designed primarily for battery-powered IoT cameras and smart home devices.
Not very high power usually. They're usually made of piezoceramics.
I think they're expensive because they're niche. Narrow band piezoceramics which are used in fish finders and other commercial equipment are pretty cheap. These wider band transducers are niche to underwater comms.
> Also what frequency does an acoustic modem typically use?
Usually in the 10s of kHz. The NATO JANUS standard is around the 12kHz center frequency.
Yea. It's Singapore's form of protectionism, if we want to hire foreigners we need to first post it on MyCareerFuture and show that we tried to hire locally before we looked at around the world. Anyway, just email [email protected] and I'll make sure it reaches the right person.
Subnero | Singapore | Full-time | Systems Software Engineer | embedded / Linux + C, Julia, Rust
Subnero (https://subnero.com) is a Singapore-based company creating in-water wireless networks. We create innovative products (hardware and software) at the cutting edge of underwater communications and networking. Our products are used in environmental monitoring, offshore oil and gas, and defense industries.
We're looking to hire a Systems Software Engineer to join our team. Our devices run embedded Linux and our software stack interfaces deeply with hardware. We're looking for someone to join the team in maintaining and improving the embedded side of our software stack. We're looking for someone comfortable working with Linux, device drivers, and hardware APIs. Experience with Julia and Rust would be a plus.
Not technically a startup anymore, (our bizdev manager likes to call us a "grownup startup",) but we're making underwater acoustic wireless communication devices. We're taking a more software defined approach allowing us to be much more leaner, flexible and do more more IoT-esque things in an underwater wireless network.
It's an strange but interesting field. Loads of real, physical problems still left to solve and space for innovative solutions. Lots of hard engineering (software, hardware, etc) to do. But the marine tech industry is traditionally very slow to adopt any new technologies. Makes for some fun conversations. :P
One of my pet peeves is that the Linux SPI driver framework has a very transactional API. You can read/write N bytes to a bus at a time.
Some SPI devices can stream out lots of data on the bus. I’m looking at you ADCs.
It’d be nice to have a stream style API for that. Not sure which Linux framework is best suited for that. Maybe IIO but something on those lines might be fun to explore.
Sat on them for 5 yrs. Finally decided to try if AI tools could help. Tool Copilot 20mins and a lot of mucking around with hex dumps. First couple of times it got a semi working solution (only first few seconds of a file were playable). Finally managed to recover all the files.