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Author Topic: Library question + JRemote  (Read 2587 times)

Grga-Ri

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Library question + JRemote
« on: January 15, 2014, 02:44:58 am »

Hi,

I've sorted my music in three folders
1. FLAC (music I don't listen so often)
2. Uncompressed (Flac or WAV)
3. Hi. res.

Is it possible to have one library, and when I want to listen to Uncompressed files, for other two (FLAC + Hires) to NOT be visible.
And all this replicated on JRemote?

Thanks in advance,
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Arindelle

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Re: Library question + JRemote
« Reply #1 on: January 15, 2014, 04:39:46 am »

Yes there are many ways ...

In your Views - right click customize view. When you have the box pop-up, click on the three dots next to "Set rules"

In the wizard you have a bunch of choices for a rule. In your case you could either filter the view to show only Wav files (or only flac or wav and Flac etc) by File Type "is" and choose what you want.  You can also use Filename path instead of file type and indicate the path of the folder(s) you want to access. You can copy your view and resave it to another name or overwrite it -- your choice.

For external controllers like Gizmo, JRemote etc. (unless you are only overwriting the same view) you will have to go to Options=>Media Network=> Advanced=> Customize Views for Gizmo. In the wizard choose add and from Standard View choose the new view(s) you have created.

For specific questions concerning JRemote specifically  - please ask for help here => http://yabb.jriver.com/interact/index.php?topic=79104.0

Hope this helps  :)
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Grga-Ri

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Re: Library question + JRemote
« Reply #2 on: January 15, 2014, 04:55:33 am »

Thanks, I will try it...

For sure will have to do it using filename path, because I have uncompressed FLAC and comp. FLAC which I want to separate.
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Arindelle

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Re: Library question + JRemote
« Reply #3 on: January 15, 2014, 05:38:33 am »

Thanks, I will try it...

For sure will have to do it using filename path, because I have uncompressed FLAC and comp. FLAC which I want to separate.
Just out of curiosity, are you doing testing on these files? Duplicating them by format? Flac at 1 or Flac at level 8 are still technically compressed files -- both are of course lossless - difference on playback - nul though.  Maybe I am missing something is there a FLAC "0"?

As for the wav files, that gets to be a touchy subject  I guess  :)

These articles from Computer Audiophile may interest you?

Flac-vs-wav-part-2-final-results

flac-vs-wav-vs-mp3-vs-m4a-experiment
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Grga-Ri

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Re: Library question + JRemote
« Reply #4 on: January 15, 2014, 12:22:19 pm »

No testing, just because I don't listen this CDs so often I decided to save space, level 5 (I think it's default compression).

As for the 0 compression, yes they implemented it lately, and should be that music header is same as WAV, only metadata part is FLAC. I don't hear any difference. When I find time I'll also convert older WAV rips to uncompressed FLAC, because: 1. tagging is more stable,  2. with FLAC I can easy check files for corruption.
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Arindelle

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Re: Library question + JRemote
« Reply #5 on: January 15, 2014, 12:56:08 pm »

Quote
I'll also convert older WAV rips to uncompressed FLAC,
sure, convert to Flac. lots of reasons to do so ... but I see 0 reasons for the "0" option in flac. Less encoding time (but at 25x who cares) and bigger files. Wonder why they did that? Its not "less" lossless at 8 than at 1.
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Grga-Ri

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Re: Library question + JRemote
« Reply #6 on: January 15, 2014, 06:06:24 pm »

From what I understand it is all about procesor usage (noise generated), when you play compressed FLAC the file must be decompressed first which needs processor activity, which gives more noise... with WAV or 0 FLAC you don't have this.

And on my system, I hear difference between comp. and uncomp., it's not night day difference, but you hear something that I can't explain... as the music has some tension, and with uncomp. it's flowing freely.
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csimon

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Re: Library question + JRemote
« Reply #7 on: January 16, 2014, 05:47:26 am »

From the above linked article: "if you are hearing an audible difference, then the waveform must have changed" but the tests show that the waveform doesn't change between FLAC and WAV. Processor activity does not affect the bits that are sent to your DAC.  Even if it did, the file is decompressed very quickly at the start of play.
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Arindelle

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Re: Library question + JRemote
« Reply #8 on: January 16, 2014, 05:54:19 am »

From what I understand it is all about processor usage (noise generated), when you play compressed FLAC the file must be decompressed first which needs processor activity, which gives more noise... with WAV or 0 FLAC you don't have this.

I admit I was not aware of the 0 choice in Flac - so I did a little research. And embarrassingly, I found that the external ripper I use, dbPoweramp, actually goes a step further than zero for totally "uncompressed" -- and I never noticed it! :). This uncompressed flac file still goes through a decoding process, though.  I ripped a CD and found the files are to be actually larger than the original wav files (due to the 4k header and the metadata I am told). I compared them to level 8 Flac and a wav file of the same track, along with a level 8 flac converted back to wav. I saw no difference at all. Granted, I did not take the time to do this "scientifically" although others have  ... (superimposed the tracks in audacity to sample level is all I did)

However, simplified, I know not one player that does not "decode" to PCM stream into a buffer prior to playback (virtually the length of most songs). With memory playback in JRiver I believe will decode 1GB prior to playback (2? can someone confirm plz?), for info. There would be no real-time processor generated "noise" generated in the PCM stream if the player is set-up for bit-perfect processing to the dac. With old processors that couldn't even put one track's worth of PCM data into ram, I could see where this might be an issue.

Quote
From Well tempered Computer ArticleOn my PC, using Sysinternals Process Explorer (the benchmark tool for CPU usage analysis), playing a WAV file in Foobar required a scant 0.327 seconds of total CPU time from a single core of my multicore processor. This works out to about 0.2% CPU usage. Playing the exact same file in FLAC format, required 0.312 seconds of total CPU time—also about 0.2% CPU usage. These numbers are essentially the same, and the FLAC number is even slightly lower. Why? It’s likely because the CPU has to read half as much data with FLAC compared to WAV. But these numbers are so small, they really don't matter. Other background tasks in the operating system consume far more CPU than FLAC decoding.
NwAvGuy
Thanks Vincent btw excellent article]

The only obvious difference (to me) is the "encoding" time during the rip -- but I don't care about this personally.

Quote
And on my system, I hear difference between comp. and uncomp., it's not night day difference, but you hear something that I can't explain... as the music has some tension, and with uncomp. it's flowing freely.
 I'm not going to touch that one .. sound quality is subjective. If one actually hears a difference or just perceives they hear a difference doesn't matter. It all about the music and your enjoyment of it. Happy Listening !   :)
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Arindelle

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Re: Library question + JRemote
« Reply #9 on: January 16, 2014, 06:13:25 am »

From the above linked article: "if you are hearing an audible difference, then the waveform must have changed" but the tests show that the waveform doesn't change between FLAC and WAV. Processor activity does not affect the bits that are sent to your DAC.  Even if it did, the file is decompressed very quickly at the start of play.

I think what they meant is if you have a corrupted flac codec or your ripper screws up (as examples) and creates a different wavform. Different wavforms = different sound. Anyways the articles were just for info for the OP, I know that not everyone agrees, although I think Mitchco's article and analysis is excellent  ;)

If done correctly as you said there is no difference. And my little tests make me feel better about my level 8 Flacs - not only can I not hear any difference (don't worry OP not starting a polemic here :) but the wavforms are indeed identical at Flac "Uncompressed", Flac lvl 0, Flac8 and wav (even flac 8 converted back to wav.  50% of my music is ripped in lvl 8 the older stuff in level 5. I'm sticking to level 8 personally - but to each his own. Hard drive space is cheap  :)

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csimon

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Re: Library question + JRemote
« Reply #10 on: January 16, 2014, 06:58:02 am »

Hard drive space is cheap  :)

SSD space getting cheaper!
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Grga-Ri

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Re: Library question + JRemote
« Reply #11 on: January 16, 2014, 07:26:17 am »

From the above linked article: "if you are hearing an audible difference, then the waveform must have changed" but the tests show that the waveform doesn't change between FLAC and WAV. Processor activity does not affect the bits that are sent to your DAC.  Even if it did, the file is decompressed very quickly at the start of play.

I'm sure that waveform is not changing, there is a lot of discussions on several forums where some hear the difference, some dosen't. I'm mechanical engineer, with very little knowledge of electronics. And I personally didn't belived that power cable can make a difference, until friend came to my place with his powercable.

To sum it up, I didn't made the blind test, I just tested with several songs in Uncomp. FLAC and L5 FLAC, and to my ears uncomp. is slighty more natural (I state very, very slighty). I don't care why and I'm not obssesed with that, disk space is cheap these days, therefore decided to keep the music I regulary listen in uncompressed form.
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Grga-Ri

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Re: Library question + JRemote
« Reply #12 on: January 16, 2014, 07:31:55 am »



The only obvious difference (to me) is the "encoding" time during the rip -- but I don't care about this personally.
  I'm not going to touch that one .. sound quality is subjective. If one actually hears a difference or just perceives they hear a difference doesn't matter. It all about the music and your enjoyment of it. Happy Listening !   :)

Right, I'm not excluding the option that I just perceive it, but at the end hard disks are not so expensive anymore, and I want the peace of mind, that everything from ones and zeroes on hard drive up to my speakers is up to task, and all I've to do is enjoy the music!
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