is there any any good Mp3-Player?? - diyAudio
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Old 8th September 2014, 05:03 PM   #1
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Join Date: Apr 2010
Default is there any any good Mp3-Player??

Maybe somebody can help me:

I have a Numark MP-103USB. I am almost happy with the sound quality, but there are some issues causing me to want a replacement.

Issues:

1. does not show subfolder structure (but gives access to subfolders)
2. no "random DJ mode" to shuffle the songs in a folder (repeat shuffle)
3. does not display long file names at full lenght
4. on some files it does not "recognize" the correct lenght, i. e. it stops within the song or spends minutes of silence after a song, just counting the time down. The files are OK in coolEdit / MPlayer etc... so no file issue.
- > I generally do not want to deal with messed up ID3 tags, since correct file naming is difficult enough (Artist - Song.mp3), therefore I generally delete all Tags using ID3kill.exe. Could this cause some play time confusion on the player firmware?

The new model should have the following spec:

*19" rack mount, 1 or 2 units of height (or 1.5)
*plays unlimited number of files (not like some Tascam models only accepting less than 256 files for whatever strange reason)
*features like MP-103USB (including CD drive plus USB connector)
*plus:
- subfolder structure view
- random DJ mode / shuffle and repeat shuffe within a folder
- at least ~50 characters displayed of the filename (don 't care about ID3 tags etc) in scroll mode - no truncation of the file name, I can accept some screwed up special characters though...)
-plays all valid .mp3-files at full length, VBR plus CBR, no matter what encoder was used or what bitrate setting etc....
*uncompressed *.wav - file playback would be a bonus
*mp3 normalizing feature can be a plus if it can normalize the whole file at once - not some gradual ******** volume adjusting like VLC player automatically does - (VLC guys hear me: -> this is distortion that no one wants! MPlayer / MPlayer X is much better!)
*2 x RCA outputs unbalanced (full signal sine wave: ~2Vrms), XLR balanced would be a bonus

Is there any player that can meet this spec ??
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Old 10th September 2014, 05:57 AM   #2
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How about going in for a rack mount PC with a better audio card.

Gajanan Phadte
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Old 10th September 2014, 11:09 AM   #3
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Hello thanks for answering! The odds of the whole internet crashing because of my thread causing too much traffic are very low ;-)
What operating system do you recommend? I want playback with as few conversions as possible. Super-Fast boot and power turn off instead of slow shutdown would be a bonus.So no linux. Also, disks must not be rotating because of subwoofer trembling. So I can only use flash or SSD or the like...Also, linux suffers from various things like system mixer, pulseaudio, ALSA - they do things like sample rate conversion, digital amplitude scaling etc. which I don't like.
honestly, I just want 1:1 playback shifting the digital unmodified audio to some "good" converter in 44.1kHz. DOT.
Windows XP plus Winamp or the like would may be an option - but it also has this system audio mixer plus system jingle sounds and other BS that no one needs. What is your opinion?
The above needed Player is for my "disco". In my "studio" I have an iMac 27" plus focusrite scarlett / JBL LSR2328P set up to play with MPlayer X -after much fighting around with the "Mavericks + fusion drive USB audio gapping issue" (just google) - this system now sounds almost perfect. But Apple is no option because of cost and complexity - a total overkill.

Other idea would be to totally surrender the 19" requirement and use some kind of living room "multimedia player" or a tablet / Smartphone / portable media player - good idea? What is the typical output voltage of this kind of stuff? I need about 2Vrms unbalanced to best integrate into my DSP controlled disco system. My other sources are the said Numark Player, an FM radio, and a piano, all of which provide about that voltage level and I dont want to have 2 adjust level / change DSP program on source change.
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Old 10th September 2014, 11:55 AM   #4
phofman is offline phofman  Czech Republic
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Location: Pilsen
Quote:
Originally Posted by ViennaTom View Post
Super-Fast boot and power turn off instead of slow shutdown would be a bonus. So no linux.
?? Linux can run from read-only medium, and boot in a few secs, depending on your GUI requirements. E.g. linux puppy from a USB stick. Or a tiny ARM board with SD card. Lots of options.

Quote:
Originally Posted by ViennaTom View Post
Also, disks must not be rotating because of subwoofer trembling. So I can only use flash or SSD or the like
Sure, no need to use rotating HDDs.

Quote:
Originally Posted by ViennaTom View Post
Also, linux suffers from various things like system mixer, pulseaudio, ALSA - they do things like sample rate conversion, digital amplitude scaling etc. which I don't like.
No, it can be easily configured to be bit-perfect. In fact it is bitperfect out of the box if you do not add the additional layers of dmix or pulseaudio, as is the case in full-blown desktop distributions.

Quote:
Originally Posted by ViennaTom View Post
honestly, I just want 1:1 playback shifting the digital unmodified audio to some "good" converter in 44.1kHz. DOT.
Quite a simple requirement.
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Old 10th September 2014, 12:14 PM   #5
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linux must not be be powered off but must be shutdown -h now. otherwise the file system is can be affected. That is what I mean. but if the shutdown is fast - then why not use linux?
I have experience with distros like ubuntu, Mint, CentOS, KWheezy, PClinuxOS, all of which use the different sound layers. Great distros, especially KWheezy!, but sound-wise - very bad!!!
What linux distro do you recomment to avoid that sound screw-up? What player software? What DAC unit - how to best configure (please note that I am not good at command line hacking - honestly!). I can make an USB stick bootable and install a downloaded distro, configure and do some updates and installs, google some how-tos etc., even operate linux distros in the virtual box under OS X, so I am not the very silliest user, but I hate the command line.
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Old 10th September 2014, 12:35 PM   #6
phofman is offline phofman  Czech Republic
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Quote:
linux must not be be powered off but must be shutdown -h now. otherwise the file system is can be affected.
That is only the case if your main filesystem is not read-only. There are lots of distributions which create their root filesystem in RAM/disc as a combination of read-only root filesystem stored in ROM/SD card/flash and a runtime layer. Upon shutdown the runtime layer disappears (RAM disc) or gets discarded on subsequent boot (AuFS). If a technology like that did not exist, your wifi router most likely powered by linux could get bricked upon unplugging the PSU.

The typical example is puppy linux.

Or daphile - look at this post Daphile - Audiophile Music Server & Player OS

Quote:
I have experience with distros like ubuntu, Mint, CentOS, KWheezy, PClinuxOS, all of which use the different sound layers. Great distros, especially KWheezy!, but sound-wise - very bad!!!
All of these are desktop distributions which must tinker with the sound in order to be usable for their purpose - general desktop computing.

Look e.g. at daphile Daphile - Audiophile Music Server & Player OS

It has been discussed here for over a year.

Quote:
but I hate the command line.
Well, from time to time the command line will save your butt. Plus it will save tons of your time if you decide to spend the few minutes for learning how to use it efficiently in linux in case you happen to need it.

Last edited by phofman; 10th September 2014 at 12:52 PM.
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Old 10th September 2014, 02:01 PM   #7
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Some friend of mine recommended the RaspPi. Looks like some small cheap "embedded system" could do the trick. Much learning for me, though, especially the 50 pages thread...
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Old 10th September 2014, 02:12 PM   #8
phofman is offline phofman  Czech Republic
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Location: Pilsen
Sure, another example of a linux audio system capable of bit-perfect operation and surviving any power outage.

I personally would pick a regular x86 machine to start with. RPi USB hardware is not exactly reliable. Or look at RuneAudio - Embedded Hi-Fi music player for examples of other ARM boards.
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Old 10th September 2014, 02:22 PM   #9
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thanks for the help- Daphile lokks quite good. but much reading. I just found out that the files that my Numark Player does not correctly play time-wise, are mostly the ones that I had reworked (from scratches / clippings / normalizing, denoising.... and the like) using V-Box installed Win XP Cool Edit Pro 2.0, then "saved as" using a 10 year old WinXP based lame MP3 encoder, set at very high VBR quality, like 320kBit, BW21kHz, joint stereo OFF, or the like (to not get additional sound degradation I usually save in highest possible quality, since you can only loose - never gain - quality by opening - editing, then saving. Disk space is cheap so that is how I do it. I did not try other encoder options so far...)
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Old 10th September 2014, 03:02 PM   #10
Julf is offline Julf  Europe
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Quote:
Originally Posted by ViennaTom View Post
to not get additional sound degradation I usually save in highest possible quality, since you can only loose - never gain - quality by opening - editing, then saving. Disk space is cheap so that is how I do it.
If that is the case, why would you use a lossy format?
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