[SlimDevices: Audiophiles] Transporter not playing large (24/96) files properly

[bzlrbi]

This is weird, and recent. I have 2 Transporters. The newer one (and
the one in the far room) won't play certain hi-def files properly.
There is massive distortion and the 2 players get out of sync. I've
tried a switch from wireless to ethernet but that does not solve this.


However, if I play these same files via the wavin:0 app, no problems at
all. Also no problems on "regular" 16/44.1 files. I think I can
eliminate hard drive or cable problems.

Any clues? Thanks.


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[garym]

try a xlinx reset. remove power from transporter, point remote at
transporter holding down the "1" key, and reapply power. When you see
the message about "xlinx" reset on the transporter screen, you can quit
pressing the 1 key. let transporter reboot. You won't lose any settings
doing this. xlinx reset often solves a lot of weird problems.



*Home:* VortexBox 4TB (2.3) > LMS 7.9 > Transporter, Touch, Boom, Radio
(all ethernet)
*Cottage:* VBA 3TB (2.3) > LMS 7.9 > Touch > Benchmark DAC I, Boom,
Radio w/Battery (all ethernet except Radio)
*Office:* Win8(64) > LMS 7.9 > Squeezelite
*Spares:* Transporter, Touch(3), Radio(3), Boom, SB3, CONTROLLER
*Controllers:* iPhone6 & iPadAir2 (iPeng & Squeezepad), CONTROLLER, or
SqueezePlay 7.8 on Win8(64) laptop
*Files:* ripping: dbpoweramp > FLAC; post-rip: mp3tag, PerfectTunes;
Streaming: Spotify
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[Wombat]

If these files are flac you may try to recompress them with a blocksize
of 4096 that is default for recent flac versions. I had files compessed
with level 8 and a blocksize of 4608 that stuttered. If it still
stutters use a lower compression level like 6 or 5 that is default iirc.



Transporter (modded) -> RG142 -> Avantgarde Acoustic based 500VA
monoblocks -> Sommer SPK240 -> self-made speakers
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[garym]

Post by Wombat
If these files are flac you may try to recompress them with a blocksize
of 4096 that is default for recent flac versions. I had files compessed
with level 8 and a blocksize of 4608 that stuttered. If it still
stutters use a lower compression level like 6 or 5 that is default iirc.

Also, were these files created with the most recent FLAC codec.
According to Spoon at dbPoweramp, this version of FLAC encoder has a bug
that only causes problems with certain players. Not sure if transporter
is one of those. But it can't hurt anything to do what Wombat suggests
and renencode the flac files to compression level 5 and make sure you're
NOT using FLAC ver. 1.3.2. (use 1.3.1 or earlier).



*Home:* VortexBox 4TB (2.3) > LMS 7.9 > Transporter, Touch, Boom, Radio
(all ethernet)
*Cottage:* VBA 3TB (2.3) > LMS 7.9 > Touch > Benchmark DAC I, Boom,
Radio w/Battery (all ethernet except Radio)
*Office:* Win8(64) > LMS 7.9 > Squeezelite
*Spares:* Transporter, Touch(3), Radio(3), Boom, SB3, CONTROLLER
*Controllers:* iPhone6 & iPadAir2 (iPeng & Squeezepad), CONTROLLER, or
SqueezePlay 7.8 on Win8(64) laptop
*Files:* ripping: dbpoweramp > FLAC; post-rip: mp3tag, PerfectTunes;
Streaming: Spotify
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[bzlrbi]

Post by garym
Also, were these files created with the most recent FLAC codec.
According to Spoon at dbPoweramp, this version of FLAC encoder has a bug
that only causes problems with certain players. Not sure if transporter
is one of those. But it can't hurt anything to do what Wombat suggests
and renencode the flac files to compression level 5 and make sure you're
NOT using FLAC ver. 1.3.2. (use 1.3.1 or earlier).

Thanks for the tips. I'll try all of these and report back within a
couple days. Yes, those are FLACs, purchased 2/2015 apparently. I'm
seeing "FLAC reference libFLAC 1.2.1 20070917" under "encoder".


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[ralphpnj]

Post by garym
Also, were these files created with the most recent FLAC codec.
According to Spoon at dbPoweramp, this version of FLAC encoder has a bug
that only causes problems with certain players. Not sure if transporter
is one of those. But it can't hurt anything to do what Wombat suggests
and renencode the flac files to compression level 5 and make sure you're
NOT using FLAC ver. 1.3.2. (use 1.3.1 or earlier).

I have run into a similar problem when trying to play back flac files
encoded with Lavf (usually version 5). I use dbpoweramp to convert the
files to FLAC version 1.3.1 and then the files play without any
problems.



Living Rm: Transporter-SimAudio pre/power amps-Vandersteen 3A Sign. &
sub
Home Theater: Touch-Marantz HTR-Energy Veritas 2.1 & Linn sub
Computer Rm: Touch-Headroom Desktop w/DAC-Aragon amp-Energy Veritas 2.1
& Energy sub
Bedroom: Touch-HR Desktop w/DAC-Audio Refinement amp-Energy Veritas 2.0
Guest Rm: Duet-Sony soundbar
Garage: SB3-JVC compact system
Controls: iPeng; SB Controller; Moose & Muso
Server: LMS 7.9 on dedicated windows 10 computer w/2 Drobos
'Last.fm' (http://www.last.fm/user/jazzfann/)
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[bzlrbi]

Post by Wombat
If these files are flac you may try to recompress them with a blocksize
of 4096 that is default for recent flac versions. I had files compessed
with level 8 and a blocksize of 4608 that stuttered. If it still
stutters use a lower compression level like 6 or 5 that is default iirc.

This worked! I used dbPowerAmp to rewrite/override files at #5
compression level and it seems fine now. "db" still shows 4608 bit rate
under "details", but whatever.... I didn't even need to rescan.
Thanks!

(For the record, this was Led Zeppelin's Physical Graffiti which I
purchased from livedownloads.com. It seems that some of the other Zep
"fat" files have the same issue.)


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[Wombat]

Nice it worked! The bitrate and blocksize and the number 4608 does have
nothing in common.
It is a pure coincidense. 24bit 96kHz has a bitrate of 4608kbps. flac
compresses into frames of a steady blocksize that has a maximum of 4608
samples per block for sampling rates up to 48kHz. This was used as
default earlier but now it uses 4096 samples.



Transporter (modded) -> RG142 -> Avantgarde Acoustic based 500VA
monoblocks -> Sommer SPK240 -> self-made speakers
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[bzlrbi]

I bought some commercial 24/96 files two days ago (Grateful Dead RFK
Stadium 1989) that my Transporters would not play at all. Well, I went
ahead and used dbPowerAmp to "convert" FLAC to FLAC (level 5), and now
they play completely fine! I just thought I'd bump this thread in case
it helps someone else.


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