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submitted 1 year ago by denissimo@feddit.de to c/linux@lemmy.ml

For context, LDAC is one of the few wireless audio codecs stamped Hi-Res by the Japan Audio Society and its encoder is open source since Android 8, so you can see just how long Windows is sleeping on this. I'm excited about the incoming next gen called LC3plus, my next pair is definitely gonna have that.

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[-] marmo7ade@lemmy.world 6 points 1 year ago* (last edited 1 year ago)

Tell me you're an apple fanboi without telling me you're an apple fanboi.

LDAC is "only" high res @ 990. OK? WTF is your point? It sounds better than every other codec.

it still often looses when pipewire is compiled against libfdk

Can you explain the practical implication of this when I listen to music on my Pixel phone? (spoiler: there is none)

but typically AAC on supported headphones beat out 990kbps LDAC

100% total bullshit. Here are the tests:

https://www.soundguys.com/ldac-ultimate-bluetooth-guide-20026/

AAC does not have better fidelity. What a joke of a claim.

[-] drwankingstein@lemmy.dbzer0.com 6 points 1 year ago* (last edited 1 year ago)

at 990/909 kbps bluetooth can hardly hold that bitrate unless you have really good conditions so much as walking down a stream will bring it down to 660kbps

and yes, AAC does have better fidelity, at 320kbps AAC and Opus are largely transparent to 90% of users keep in mind I am comparing fdkaac on Pipewire, NOT android, this is an important distinction since they were testing android, and you can see here how spotty AAC is on android https://www.soundguys.com/the-ultimate-guide-to-bluetooth-headphones-aac-20296/

I am talking specifcally about linux in this context

EDIT: also it's not about being an apple fanboy, Opus is largely just as good, marginally better, but no headphones support them, if you want you can even compile pipewire with higher bitrate limits on opus for stereo, (IIRC the pro profile can override it? cant remember but code is here https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/master/spa/plugins/bluez5/a2dp-codec-opus.c)

[-] neo@lemmy.comfysnug.space 1 points 1 year ago* (last edited 1 year ago)

opus is transparent for all the the most intense songs by 160kbps, and for regular stuff you'd hear on the radio it's transparent anywhere from 96kbps-128kbps

[-] drwankingstein@lemmy.dbzer0.com 2 points 1 year ago

while this is the case for a lot of songs, a lot of instrument heavy songs can cause noticeable artifacting for some people. It's pretty rare, but in the end, it's not like we are storing the media so why care? we can do upto 320kbps for a stereo stream, and as far as I am aware, it's not like there are any detriments to doing so (maybe marginally higher power usage I guess).

I wasn't able to myself, but I did have a friend test the snug space endless lane, and they were able to fairly reliably tell the difference between 128kbps and the original rip. the In the moonlight track too has a high pitch... triangle maybe? that can exhibit artifact too.

so like, yeah, but we have the 320kbps we can work with, so like, why not?

[-] denissimo@feddit.de 3 points 1 year ago

You all got a valid point.. it's just that mileage varies and x codec will sound better in y combination. If I remember right, AAC on Android is at times implemented differently than on it's home Apple: The encoder would work with smaller bitrates to save battery. There must be a special synergy for max bitrate LDAC to sound worse than AAC, indeed. All in all my post is about being open minded and giving you the option to use a thing, rather than finding out what codec is universally the best: You virtually can't, can you?

this post was submitted on 17 Jul 2023
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