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1
Support - (fb2k) / Re: LAME input bitdepth
Last post by yetanotherid -
I never use Opus myself. Only if I include it when testing as I did earlier, yet almost every time I do I discover it's special in another way. I had no idea it doesn't support 44.1 kHz. I understand it probably doesn't matter, and it'd probably be nice if 44.1kHz somehow just went away, but still.... that was a surprise.

I encoded with Opus again for a look, and this time the number of samples reported by foobar2000 was way different to the source, which makes perfect sense. I assume the same thing happened earlier and when I checked it, foobar2000 was displaying something like this:
Duration 4:49.133 (12 750 757 samples)
And I would have blocked out everything except "757" while switching between the encodes in a playlist, and it was probably bad luck the last three numbers for the Opus sample count were only off by one because then I got to be stupid. I assume that's what happened but I can't check as I deleted the samples and I can't remember which track i used as the source.

I don't normally use ffmpeg's AAC encoder so I'm not fussed there, although I did notice the ffmpeg MP3 had 1D3v2.4 tags whereas the LAME MP3 had 1D3v2.3 tags (which is the tag version I have foobar2000 configured to write), so I probably should investigate that phenomenon.
2
What if I downsampled the original DXD file to 192/24, then upsampled the MQA to 192/24 (to avoid the crashing of the ABX plugin with DXD files), and then use the Foobar ABX test. Would this tell us anything?

So odd that pcm and DSD will ABX fine with the plugin and not DXD.
3
So used the following to upsample

Quote
sox -S 2L-087_06_stereo_DXD_FLAC.mqa.flac MQA_upsampled.flac rate -vsL 352800

Note the L by the -vsL, as opposed to the M from the original link.

It still sounds good to me. Damn good. I really can't hear any differences, even in the silent fade outs.  Very good.

I would like to do a proper ABX test, but the ABX Comparator does not like DXD files, even though Foobar will play them; stupid error. If anyone knows a fix I'd like to ABX properly. In any case though, the linear upsampled MQA to DXD sounds awesome and I can't seem to tell the difference from the ORIGINAL DXD file I downloaded.

4
General Audio / Re: Meridian Audio's new... sub-format called MQA.
Last post by Wombat -
So far undecoded MQA sounds like DXD when upsampled to you. This means low bit, standard samplerate done correctly sounds like DXD.
Can't help with that foobar error but try linear standard SoX upsampling please and try again.
5
So I think I will try this test on my own using their methodology, I have already downloaded the files. I guess after I convert the MQA one in SoX I should get my wife to rename the files and keep a record of what they are without me seeing. Then I can listen. Not fully scientific, but I guess it will do.
You upsample with minimum phase, very steep filter without restoring the lower bits or the encrypted HF portion.
A negative abx may tell you MQA is never needed to begin with and DXD is also worthless. Good luck!
All this reasoning of the article is pretty weird imho.


Well I did as the article said, and had my wife use a random file name generator on them. From a casual listening perspective, I could not hear any differences. Using Focal headphones or Sennheiser IEMs on FiioX5 G3.

I figured I would try to ABX via foobar, but I get the "critical ABX error The parameter is incorrect.   (0x80070057)". I can play these files fine, but as soon as I choose any Play Button the error pops up. Doesn't happen for DSD files or any other flac/pcm. Any way to fix this?
6
Medium experience, what does that mean?

Previously I have used Sony Xperia live with walkman ie., Sony Xperia wt 19i and I have never such a device I mean it provided rich experience while listening to music via headphones or through external speakers. After that I have used Sony Xperia Z1 and it's audio quality was good but at very low volume.

I have used Celkon a20 and it's sound quality was very worse and I got noise while listening to music of high quality. I have even used xiomi redmi h1s and it's audio quality was also not good and it provided audio at very low volume.

Upon reviewing a number of products I think that if I want very high quality sound I must purchase Samsung Galaxy s8 edge, LG g6, HTC U11 etc.,.

Medium experience I mean sound without low volume, noise etc., but without features like hi-fi etc.,.
7
Medium experience, what does that mean?

Previously I have used Sony Xperia live with walkman ie., Sony Xperia wt 19i and I have never such a device I mean it provided rich experience while listening to music via headphones or through external speakers. After that I have used Sony Xperia Z1 and it's audio quality was good but at very low volume.

I have used Celkon a20 and it's sound quality was very worse and I got noise while listening to music of high quality. I have even used xiomi redmi h1s and it's audio quality was also not good and it provided audio at very low volume.

Upon reviewing a number of products I think that if I want very high quality sound I must purchase Samsung Galaxy s8 edge, LG g6, HTC U11 etc.,.

Medium experience I mean sound without low volume, noise etc., but without features like hi-fi etc.,.
8
Support - (fb2k) / Re: LAME input bitdepth
Last post by kode54 -
Ah, it lets LAME do its own thing there. Good. I don't think it does any such special treatment for MP4/AAC, however, but you're welcome to try.

Regarding Opus, remember that Opus is a 48 kHz format, so it's upsampling to that rate from whatever you supply, and if it's returning exactly what you requested, then it's also downsampling on decode. The Opus tools are supposed to include a rounding choice that makes this match the input somehow, but maybe it still has possible rounding errors? Or maybe FFmpeg doesn't take this into account?
9
Support - (fb2k) / Re: Replaygain target volume
Last post by kode54 -
And just in case anyone else missed it, @Xerus bumped a topic from 2014.
10
3rd Party Plugins - (fb2k) / Re: Columns UI appearance
Last post by kode54 -
Aha. It apparently happens when you try to link to images from private albums. You have to share the whole album they're contained in publicly, for them to be linkable externally.