thanks
-s
That is because everything on every audio CD ever created in the world is 16-bit. It is a specification of Redbook Audio. Even an HDCD, which claims to be 20-bit, is really just a 16-bit audio signal encoded with 20 bits worth of data by the use of various audio filters.
not everyone rips in the highest lossless .flac settings though.
You mean not everyone rips at the highest audio settings, or not everyone encodes at the highest FLAC compression? They’re two different things, neither of which probably mean what it seems you’re referring to.
You don’t rip to FLAC, you rip to WAV, and the WAV output is whatever exists on the source material. Again, for CDs, this is 16-bit. If you’re talking about the highest FLAC setting, that just affects the size of the FLAC file, not the quality of it. FLAC doesn’t have quality settings; if it did, it would by definition not be lossless. You don’t apply settings to something you don’t want to change, and the whole idea of FLAC is that nothing changes.
24bit flac files are super rare.
They are only as rare as 24-bit source audio.
Some DVD-A/BD rips.
Sinus has a 5.1/24bit/48kHz flac of Inception, ripped from the blu-ray. The second disc had most of the retail OST as a special feature in those properties.
A few tracks weren’t published to the special features, assuming for legal reasons on part of Edith Piaf’s music.
Lorne Balfe & Hans Zimmer ~ Inception (audiophile edition) (FLAC) (24 bit/48 kHz) (http://forums.ffshrine.org/f92/lorne-balfe-hans-zimmer-~-inception-audiophile-95574/)
You can start with that and downmix it with fancy Dolby Headphone filters and whatnot.
Foobar has DHP filter (install separately).
mr_merrick (http://forums.ffshrine.org/search.php?searchid=2713240) has a large collection of SACD/Vinyl rips as well.
From a torrent, uploaded to MEGA: Masamichi Amano ~ Giant Robo OSTs 1-7 (24-bit 96000hz) [No Cue] (http://forums.ffshrine.org/f91/giant-robo-osts-1-7-masamichi-amano-49552/#post2372110).
@hellacia
I never asked for CDs. I asked for any links to any sources, which include any very high quality tracks, binaural or 24bit audio. I should have specified I wanted real 24bit tracks and not upsampled 24 bit from 16 bit. Your entire post is based on the assumption I believe Flac is true lossless. You are wrong in that assumption.
That is because everything on every audio CD ever created in the world is 16-bit. It is a specification of Redbook Audio. Even an HDCD, which claims to be 20-bit, is really just a 16-bit audio signal encoded with 20 bits worth of data by the use of various audio filters.
You mean not everyone rips at the highest audio settings, or not everyone encodes at the highest FLAC compression? They’re two different things, neither of which probably mean what it seems you’re referring to.
You don’t rip to FLAC, you rip to WAV, and the WAV output is whatever exists on the source material. Again, for CDs, this is 16-bit. If you’re talking about the highest FLAC setting, that just affects the size of the FLAC file, not the quality of it. FLAC doesn’t have quality settings; if it did, it would by definition not be lossless. You don’t apply settings to something you don’t want to change, and the whole idea of FLAC is that nothing changes.
They are only as rare as 24-bit source audio.
FLAC is true lossless. That isn’t a matter for debate or query; it’s a simple, proven, mathematical fact.
His assumption was only that you understood the most elementary concepts of digital audio; and in that respect, he was indeed 100% wrong.
Which produces the highest quality when converted to MP3: CBR, VBR, or ABR?
Which produces the highest quality when converted to MP3: CBR, VBR, or ABR?
VBR is best.
VBR gives better results for Low Pass.
Using CBR with custom Low Pass settings may give weird or worse results.
You can google search for the hydrogenaudio forums and you’ll see several threads talking about the possibilities and the way the psycho-acoustics works for Lame MP3 encoding.
Lame is striving towards generating optimal presets so you don’t have to play so much with custom settings.
ABR is good for low-end tech usage as a medium between CBR compatibility and VBR quality (online streaming would use ABR instead of VBR; etc).
Personally, I would use VBR and not touch the Low Pass filter, unless you’re willing to spend time on each song with different settings and do blind ABX listening tests.
Google search for more information and discussion on Low Pass filter in LAME:
mp3 lame low pass site:hydrogenaudio.org/forums/
Here’s what normally happens when I use a sample from a blu-ray (48KHz sample rate) using presets to encode (with foobar2000).
Writing library: LAME3.99r
V0
-m j -V 0 -q 0 -lowpass 24 –vbr-new -b 32
CBR@320
-m j -V 4 -q 3 -lowpass 20.5
With V0, it retains as much as the original source audio as possible, by default.
With CBR, it gives you what is relative to CD sample rates: 44.1KHz.
My tests show the following, for a standard 44.1khz sample:
-V0 has no hard lowpass – some frequencies all the way up to Nyquist are preserved. There is a "soft" lowpass at 16khz which is occasionally relaxed to allow high frequencies deemed important by the psychoacoustic model through.
320 CBR has a hard lowpass at 20khz!!! It also has a "soft" lowpass at 16khz but it relaxes more often than in VBR mode. Very curious!
To summarise, -V0 very occasionally permits higher frequencies (>20khz) than 320CBR, but is more stingy with 16khz-20khz content.
This makes sense and cements -V0 as the superior. CBR320’s performance is unusual but I suspect that 99.9% of development in the past decade has gone into VBR mode, so throwback behaviour on this mode is to be expected.
Finally, higher lowpass doesn’t equal better – in a lossy codec, frequently the opposite is true. Above 16khz, we don’t hear much of any consequence, above 18khz even the most pristine ears have approaching-zero sensitivity, and above 20khz, all bets are off unless you’re a bat or a dog or a cat. I like to see an aggressive lowpass in a lossy codec because that tells me that the model is being intelligent about throwing away stuff that we can’t hear or are insensitive to, and donating the bitrate it saves to frequencies that are within our most sensitive frequencies.
There’s one other encoder I’ll use if it’s not fb2k: LameXP, which has its own presets but I’ve rarely got that installed since it undergoes multiple updates and betas.
In the advanced settings, I changed algorithm quality to slowest.
Everything else is on Auto.
General
Complete name : D:\Music\LameXP Encodes\01 – Look to the Stars.mp3
Format : MPEG Audio
File size : 5.70 MiB
Duration : 2mn 53s
Overall bit rate mode : Variable
Overall bit rate : 232 Kbps
Album : Man of Steel [Deluxe Edition] (Disc 1)
Track name : Look to the Stars
Track name/Position : 1
Performer : Hans Zimmer
Genre : Soundtrack
Recorded date : 2013
Writing library : LAME3.99r
Cover : Yes
Cover MIME : image/jpeg
Comment : Encoded with LameXP
Audio
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Mode : Joint stereo
Duration : 2mn 53s
Bit rate mode : Variable
Bit rate : 232 Kbps
Minimum bit rate : 32.0 Kbps
Channel count : 2 channels
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 4.81 MiB (84%)
Writing library : LAME3.99r
Encoding settings : -m j -V 0 -q 0 -lowpass 22.1 –vbr-new -b 32
Here’s the same with LameXP done in CBR@320.
General
Complete name : D:\Music\LameXP Encodes\01 – Look to the Stars_CBR320.mp3
Format : MPEG Audio
File size : 7.52 MiB
Duration : 2mn 53s
Overall bit rate mode : Constant
Overall bit rate : 320 Kbps
Album : Man of Steel [Deluxe Edition] (Disc 1)
Track name : Look to the Stars
Track name/Position : 1
Performer : Hans Zimmer
Genre : Soundtrack
Recorded date : 2013
Writing library : LAME3.99r
Cover : Yes
Cover MIME : image/jpeg
Comment : Encoded with LameXP
Audio
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Mode : Joint stereo
Duration : 2mn 54s
Bit rate mode : Constant
Bit rate : 320 Kbps
Channel count : 2 channels
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 6.63 MiB (88%)
Writing library : LAME3.99r
Encoding settings : -m j -V 4 -q 0 -lowpass 20.5
Now to do a blind ABX test.
If everything is on auto, where’s all that other crap coming from? Why is LameXP forcing lowpass? And a really silly lowpass for that matter… 22.1khz lowpass on a 44.1khz source… when that sample rate tops out at 22.05!!!
Confused… and instantly distrustful of LameXP… 😉
I’ve completely switched over to AAC for lossy encodes now.
I use QAAC to do my encodes and use TrueVBR settings. :smrt:
———- Post added at 03:18 PM ———- Previous post was at 03:16 PM ———-
Looking at a few other programs I use once in awhile, I think they mostly use the -new-vbr command and other things as defaults in their presets.
I hand’t actually paid attention so much since the new update of 3.99.5.
Shortly after that, I found QAAC was undergoing a lot of updates and seems to outdo NeroAAC in multiple ways with their continual updates and bugfixes which Nero will never ever do.
My car stereo doesn’t like AAC so I’m stuck with MP3 – at least until I get a new car stereo… 😉