Opus 1.5 released: Opus gets a machine learning upgrade
opus-codec.org
Opus 1.5 released: Opus gets a machine learning upgrade
1–10 of 151 posts
Re: Opus 1.5 released: Opus gets a machine learning upgrade
#2Very cool. seems like they addressed the problem of hallucination. would be interesting to see an example of it hallucinating without redundancy and corrected with redundancy
Re: Opus 1.5 released: Opus gets a machine learning upgrade
#3Why the hell opus still not in Bluetooth? Well i know - sweet sweet license fees
(aKKtually, there IS opus codec, supported by pixel phones - google made it for VR/AR stuff. No one uses it, there are about ~1 headphone with opus support )
Re: Opus 1.5 released: Opus gets a machine learning upgrade
#4They’ll have my upvote just for writing ML instead AI. Seriously, this is very exciting developments for audio compression.
Re: Opus 1.5 released: Opus gets a machine learning upgrade
#5Very cool. seems like they addressed the problem of hallucination. would be interesting to see an example of it hallucinating without redundancy and corrected with redundancy
Isn't packet loss concealment (PLC) a form of hallucination? Not saying it's bad, just that it's still Making Shit Up™ in a statistically-credible way.
Re: Opus 1.5 released: Opus gets a machine learning upgrade
#6Very cool. seems like they addressed the problem of hallucination. would be interesting to see an example of it hallucinating without redundancy and corrected with redundancy
Isn't packet loss concealment (PLC) a form of hallucination? Not saying it's bad, just that it's still Making Shit Up™ in a statistically-credible way.
The PLC intentionally fades off after around 100 ms so as not to cause misleading hallucinations. It is really just about filling small gaps.
Re: Opus 1.5 released: Opus gets a machine learning upgrade
#7They’ll have my upvote just for writing ML instead AI. Seriously, this is very exciting developments for audio compression.
Machine Learning is Artificial Intelligence. Just look at Wikipedia: https://en.wikipedia.org/wiki/Artificial_intelligence
Re: Opus 1.5 released: Opus gets a machine learning upgrade
#8Why the hell opus still not in Bluetooth? Well i know - sweet sweet license fees (aKKtually, there IS opus codec, supported by pixel phones - google made it for VR/AR stuff. No one uses it, there are about ~1 headphone with opus support )
As you already mention, it's already possible to use it. As for why hardware manufacturers don't actually use it, you can thank beautiful initiatives such as this: https://www.opuspool.com/ (previous HN discussion: https://news.ycombinator.com/item?id=33158475).
Re: Opus 1.5 released: Opus gets a machine learning upgrade
#9Why the hell opus still not in Bluetooth? Well i know - sweet sweet license fees (aKKtually, there IS opus codec, supported by pixel phones - google made it for VR/AR stuff. No one uses it, there are about ~1 headphone with opus support )
The BT SIG moves kind of slow and there's a really long tail of devices. Until there's a chip with native Opus support (that's as cheap as ones with AAC etc) you wouldn't get Opus support even if it was in the spec.
Realistically for most headphones people actually buy AAC (LC and HE) is more than good enough encoding quality for the audio the headphones can produce. Even if Opus was in the spec and Opus-supporting chips were common there would still be a hojillion Bluetooth devices in the wild that wouldn't support it.
It would be cool to have Opus in A2DP but it would take a BT SIG member that was really in love with it to get it in the profile.
Re: Opus 1.5 released: Opus gets a machine learning upgrade
#10Very cool. seems like they addressed the problem of hallucination. would be interesting to see an example of it hallucinating without redundancy and corrected with redundancy
Isn't packet loss concealment (PLC) a form of hallucination? Not saying it's bad, just that it's still Making Shit Up™ in a statistically-credible way.
In a broader context, though, this happens all the time. You’d be surprised what people mishear in noisy conditions. (Or if they’re hard of hearing.) The only thing for it is to ask them to repeat back what they heard, when it matters.
It might be an interesting test to compare what people mishear with and without this kind of compensation.