Skip to main content

Recent Posts

1
The Core Audio encoder seems to provide the best quality at the moment.
Damn, installing the thing on Linux is not that easy. I just had to download a whole bunch of dlls before qaac agreed to work.
You can use the FDK-AAC encoder on Linux. The quality is comparable to that of the mighty Core Audio encoder maintained by Apple.
NeroAACEnc, used to be distributed as Win/Linux binaries, also works. The quality is lower than the Apple/FDK/FhG encoder.
2
Audio Hardware / Re: Time delay in audio amplifiers
Last post by Nichttaub -
Quote
He insisted that some of the higher end amps had delays on the order of 500 µS. 

Plausible, especially if there is any EQ or other filtering.

Not in a circuit with a feedback loop around it, though; he was talking about a bog-standard power amplifier, not an AV system with extra processing modules or even a DSP preprocessor section.  His contention was that the linear amplifier had an actual hundreds-of-µS propagation delay from input to output, and in a basic feedback circuit amp that would not be possible.

Quote
Quote
Further, he asserted that this needed to be taken into account when setting up bi-amplified speakers using different amplifiers.

Take into account how? It is just a time delay, generally you don't care if it takes a few microseconds longer after you hit start for the sound to come out.



His thought process seemed to be that it somehow affected positioning of speakers, choice of amplifiers, etc.  That just seems bizarre.
3
Audio Hardware / Re: Time delay in audio amplifiers
Last post by saratoga -
Quote
He insisted that some of the higher end amps had delays on the order of 500 µS. 

Plausible, especially if there is any EQ or other filtering.

Quote
Further, he asserted that this needed to be taken into account when setting up bi-amplified speakers using different amplifiers.

Take into account how? It is just a time delay, generally you don't care if it takes a few microseconds longer after you hit start for the sound to come out.
4
Audio Hardware / Time delay in audio amplifiers
Last post by Nichttaub -
I just saw a known audiofool at another forum trying to espouse the idea that audio amplifiers can have extreme amounts of propagation delay.  He insisted that some of the higher end amps had delays on the order of 500 µS.  Further, he asserted that this needed to be taken into account when setting up bi-amplified speakers using different amplifiers.

This seems completely untenable; wouldn't an amplifier with inverting feedback and a delay of that magnitude turn into a high power oscillator at 2 KHz?

I did some research (both print literature and online) and it seems a much more reasonable value is on the order of a few nanoseconds, which of course would be completely undetectable to the ear and of no consequence to any setup or positioning of the equipment.

Do we have a new winner in the audiofool lottery?
6
Support - (fb2k) / Did I just lose years of playlists?
Last post by firewater -
My computer crashed and upon opening foobar I got a message about a corrupted theme. Fine, I've gotten this on previous crashes, I lost my theme config and that's that. But now all my playlists seem to also be gone? They're all replaced by a bunch of generic entries called "Imported Playlist (00000006).fpl" and so on, which seem to contain nothing at all. I thought I'd be covered... I had set up foo_jesus and autobackup some time ago, but it seems none of them saved any .fpl files... am I fucked?
7
Opus / Re: Point of transparency of Opus 1.2
Last post by Funkstar De Luxe -
You can download them here:
killer samples

The artifact is like some high frequency aliasing, steam puff ?

Anyway, as from opus@112kbps it becomes more difficult to ABX the samples, please find the results attached.



Thank you!
8
Also, I wouldn't go looking for some "skin" as you can never be sure if all the components are up to date and still function well and most of the time those "skins" are never exactly what you want if you have particular needs. You're saying there's no good tutorial? There are a ton out there and all are inadequate?
9
Listening Tests / Re: Invite: MQA Core vs. Hi-Res Blind Test
Last post by Wombat -
Is it established that MQA has no loss up to the 15th bit?
For MQA CDs the magic surely needs less.
10
Listening Tests / Re: Invite: MQA Core vs. Hi-Res Blind Test
Last post by Porcus -
You get ~16 bits worth of dynamic range from a 24 bit file where the ~8 least significant bits are used to lossily encode frequency content above baseband content. 
Is it established that MQA has no loss up to the 15th bit?