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3
Other Lossy Codecs / Re: LossyFlac vs Opus 256
Last post by guruboolez -
>i feel like i'm able to hear small differences in background drums / cymbals on some tracks all the way up to Opus 256kbps.
These feelings are common. It's not impossible to hear a difference but it's most likely a psychological effect. If you're a long time lurker you probably heard about ABX test. A blind test is the only way to be sure if what you hear is really what you feel and to remove all "placebo" effect.
Opus at 192 kbps should be transparent with almost everything and for almost all listeners:
https://hydrogenaud.io/index.php/topic,120007.0.html

>My question is as both these options render a similar file size which would give the best transparent sounding files?
I'd first say that LossyFLAC's bitrate is significantly higher (~310 kbps) than Opus 256.
-extraportable is the lowest LossyFLAC preset. Quality seems really high but I don't think it's supposed to be fully transparent.
My bet is that Opus 256 kbps is smaller than lossyFLAC and probably a bit closer to full transparency.

>So far with ABX tests it seems both are identical to my ears so which one would be closer to the original flac?
I don't even sure the question makes sense. Take a FLAC file, increase the gain by .5dB: difference is audible but the modified FLAC is objectively and mathematically very close to the original. A transform codec will change much more things but it'll sound identical to the reference.
What would you keep (quality wise): a lossless copy lowered by .5 dB or a 192 kbps MP3 encoding that sound identical to the reference? Look first for transparency, then efficiency and compatibility.

>Any other suggestion welcomed also, I've heard but never used xHE-AAC or WavPack are these good alternatives?
xHE-AAC is a competitor to OPUS (=modern transform codec). It's very good but at 256 kbps there's no real benefit. WavPack is technically closer to LossyFLAC.

A possible way to go would be to encode your library in WavPack Hybrid. Then you'll get two files for each track: a lossy one and a correction one. The combination of both file has almost the same size than a pure lossless encoding. With a good explorer software you'll be able to copy and paste your folders to your portable device and it'll only copy the lossy part of your encodings. It's a very clever solution if you want high bitrate files on your portable devices and keep lossless on your main hard drives. And you don't have to handle to separate libraries. You really should try it ;)
5
FLAC / Re: FLAC v1.4.x Performance Tests
Last post by Porcus -
-8p down from 6'13" to 3"49 and then a different compile shaves off nearly another minute - not complaining, no.
-8p is now not even 13 times as slow as -5  ;)
6
3rd Party Plugins - (fb2k) / Re: foo_truepeak True Peak Scanner
Last post by Defender -
New version released with quiet mode added
Regarding this component I have nothing to wish or nag about anymore. Thx.

As you figured, the lowpass should be handled by the decoder. Another component has no way to know if it is being fed nonsensical data.
Ok, noted.

If you are scanning just one track the scanning speed will be limited by the source file decoder. Scanning is multithreaded but threads are used only for handling multiple tracks at once.
Not sure what you mean. Can truepeakscanner (and/or foobar RG scanner) use multithreaded scanning on multiple tracks/subsongs within a single container (iso/mkv)?
7
Recycle Bin / Re: Re: Another audiophile "expert"
Last post by bennetng -
FLAC does not support float and output clipping can be avoided by attenuate the level before resample when using SoX.

The real issue of SoX is input clipping if the input file contains value beyond 1.0, like WavPack float, MP3 and so on, which is already being discussed in the SoX mailing list. So maybe @korth can move the off-topic posts to another thread.
https://hydrogenaud.io/index.php/topic,101850.msg1041507.html#msg1041507
8
Support - (fb2k) / Re: Bitperfect audio in v2.x?
Last post by Case -
It allows you to make a choice. The non-exclusive output is always 32-bit floating point as that's the native format of the mixer. For those bit-perfect outputs you should select the highest supported by your hardware.

You should always use event based mode. That is the most efficient and "correct" way: playback thread sleeps and consumes zero resources while it waits for the audio interface to play its buffer. Once the device needs more data, it signals the thread to give more data. The other option is to constantly poll the device and ask "are you done yet, are you done yet, are you done yet...".
But you should never need to touch the settings, defaults should work. And if they don't, Peter wants you to report what kind of device you have and what kind of workarounds it needs to not glitch. Then such settings will be added to a workaround list and applied automatically for all users of said setup.
9
3rd Party Plugins - (fb2k) / Re: JScript Panel
Last post by evilgenius187 -
Hey Marc, awesome stuff.

  • Is it possible to have for example 1 parent panel with a background/wallpaper while having 3 children on top of it with transparency? So let's say your base is a vertical splitter with the blurred current playing wallpaper. Instead of having 3 blurred backgrounds.
  • Any way to have album covers show in front of each track while not using groups? When in folder structure would be great. (See Spotify playlists for example.)

I have some programming knowledge, if it's possible, maybe you could point me to the right direction? Nowadays I rarely create accounts to ask for help, but had to do it.

Thanks in advance and keep up the great work man.