Hacker Newsnew | past | comments | ask | show | jobs | submit | Aloha's commentslogin

I've seen this in reality - compare the sound of an XM radio from 2003 to a modern one, same codec, same symbol rate, better audio quality. The same is true on digital two way radio (DMR, P25, TETRA, etc) the quality has improved because we can make the codecs do more intensive work, because the hardware is faster.

Yep, it's as simple as that: the faster the CPU (and more RAM) the better the compression. This has been known since the 80's when MPEG-2 first came out. It was designed using 1980's technology and despite its limitations has served us well, leading to digital TV and internet video.

then why is voice calling still awful? in the 90s they made advertisements for "crystal clear voices" for their mobile networks, these days it is still a pipe dream...

Voice calling has several issues.

a) it's a legacy product that operators don't care about anymore.

b) latency is important for voice, but modern voice calls have terrible latency. POTS was digitized (for T1/PRI) with g.711 which provides a 8kHz sample rate and 13 or 14 bit samples encoded down to 8 bit. PRI lines were multiplexed one sample at a time. There's a small amount of algorithmic delay, but not much.

Modern voice calling is packetized, and most systems have packets of at least 20ms, you have more encode/decode time, you probably have a significant sampling buffer, and you may have to wait for network access, so the receiver needs to add a jitter buffer to manage that. Additionally, echo cancelation needs processing time, and it's also harder with longer latency. Some systems use longer packet times to reduce network overhead.

c) codecs: g.711 has a terrible pass band, GSM codec takes the same inputs and compresses it harder. g.722.2 (amr-wideband) is better, but it requires proper call setup and that is problematic for calls from one carrier to another. If you're calling via apps, there's potential for more flexibility, but you likely get whatever the developer thought was good enough.


Full rate EVRC sounded amazing, even back then.

GSM.. the added comfort noise was weird to me the first time I heard it while roaming.


it depends on your carrier, I find voice quality to be great on cell calls, unless its verizon.

Copyright shouldn't be abolished, it should be reformed however.

It should be 20 years, with right to renew, your first 10 year renewal is free, then the cost skyrockets, with proof required that you are still using the work in commerce, and after that first term, you get a flat rate 5 year extension, then it must be renewed annually with escalating fees.

It allows the big IP places to hold on to their family jewels, but also would return a significant amount of orphaned work to public domain.


I don't see any reason it should be longer than patents (20 years).

Why should authors be granted vastly larger IP protections than inventors?


Because Disney paying ever-increasing fees to keep Snow White is not particularly harmful. Vs. if we allowed ever-extending patents on essential medicines and foundational technologies? How much could the heirs of the Wright Brothers add to the price of every plane ticket?


Okay, but IP protections exist to benefit society. Being less harmful isn't good enough, the justification has to be "here's how being longer than twenty years benefits society".

Do movie companies or authors choose to make stuff because they'll be able to pick up more revenue 25 or 50 years from now? Seems unlikely. Both indiviudals and corporations are typically focused on the immediate future.


OP's idea was that copyright renewal costs would skyrocket after 30-ish years - I'd presume the intended benefits to the public would come from (1) increased revenue to the Treasury, and (2) most creative works leaving copyright in 30 or 35 years, because even GigaGreedyCo would only pay the renewal fees for a few of their most lucrative works.

30 years doesn't seem very objectionable to me. That's about what it was in the US in the 1800's. From an author's PoV - yes, there probably are niches where an optimist could figure "I'll write one each year. Sales of each will be low - but if I can work up to having 30 of 'em in copyright, then the total royalties will let me live comfortably." And your "immediate future" argument seems to contradict how many people plan their careers and save for retirement.


I also feel like protecting Disney is a net benefit, because they can chose what goes into public domain, based on cost.

Whereas that orphaned work you have never heard of could find a new audience.

I've considered artists lifetime or 20 years whichever is longer too.


Snow White entering the public domain is not a particular benefit to society.

A book which is long out of print, with ambiguous copyright status is.


How many years of monopoly is enough? And why not ought works be explicitly registered for such protections?


I call this process ‘threading the needle’ - some novels thread with ease, some do not thread with ease but the payoff is worth it in the end, some thread and then unthread, some never thread at all.


As someone who has to respond for this kind of stuff at work, I am regularly in a situation where I am pushing back on a CVE, or telling them that our product neither uses nor installs that package (or its for a different OS entirely).

Our product is run in a moated environment, most systems have the same username and passwords (customers never change the defaults), so I only really care about RCE's even if it is an effected package.


> most systems have the same username and passwords (customers never change the defaults)

That is horrifying and 100% on your dev team. You should not ship default credentials, instead require unique creds to be set at install. Ship an update which required default creds to be changed.

Who do you think you are, Cisco?


I dont think he's wrong.

Dell is making moves to introduce server grade hardware without ECC memory.

There is plenty of DDR5, its not even very expensive, its DDR5-ECC where the prices go stratospheric.


Do you have a source for more info? That seems odd to me - LLMs are particularly resilient to bitflips, so if anything the demand would pull on DDR5 in general, not on ECC specifically.


>There is plenty of DDR5, its not even very expensive,

My 2x16GB of DDR5-6000 that I bought for 250€ is now 650€. 2x32GB that cost 200€ last July now goes for close to 1250€. Even my shitty ass DDR4-3000 sticks from over ten years ago would be selling for close to 300€.

DDR5 is horribly expensive, the only variants that are not as expensive are low frequencies or low amounts.


DDR-5 is still expensive, at least until China can get more production online.


The point is that he must say this either way. If he expected demand to decline next year do you think he would come out and say that?


Why not? The income statements can’t lie. And if those fall short of expectations then the stock market is also gonna grill you.


Why wouldn't a memory CEO go on tv and say they expect the AI bubble to pop by the end of the year?


There is another thing that has kept me from moving on - when I moved I often found the grass wasn't greener, it was just a different texture.


One of my favorites of Bradbury’s.

Haunting.


Just gotta stay ahead of the heat curve!

Also well seasoned cast iron is dishwasher safe, there is very little you can do to kill a cast iron pan.


A dishwasher is also overkill for cast iron, you’d probably have to re-season after the wash.


I've always called this radio or dispatcher ear.

You see it in industry that uses radio too.


109m is a perfectly sensible measurement


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: