192 AIFF stutters


#1

Can the PWDII play 192 files without stuttering? It seems no matter what my network health is, I always get hiccups when playing these types of files.



Thanks!


#2

192 AIFF is not fully supported.

try transcoding or convert same file to FLAC and see if it works ok.


#3

Does it need to be FLAC? Can I use WAV for the same result?


#4

AIFF and WAV is the same data, just stored in a different way (most significant bit first v. least significant first, I do not recall which is which).



Try WAV, but my guess is that if you have trouble with AIFF you may well have an issue with WAV.



I have had no issues playing 192/24 from a DVD data disk on the PWT, but this is not the same as your issue as you are sending your files over a network.


#5

Are we referring to .aiff files streamed to the bridge? I would assume so, given that USB audio would need your server to play the .aiff file with whatever software player you prefer, thus meaning the problem resides in the software.



I would think .wav files at 192/24 should be fine given this is what the bridge ultimately plays from. Whether the transcoding is on your server or the bridge itself, it all gets converted to .wav for the bridge to then feed to the DAC.



Interesting that downloads from hdtracks currently default to .aiff? Maybe just alphabetical.


#6
stereophilus said:
Interesting that downloads from hdtracks currently default to .aiff? Maybe just alphabetical.

It may also be because AIFF is popular with Apple and, with iTunes, Apple owners are often comfortable with downloading music.

#7

.WAV didn’t work any better. I’m streaming via hardwire from network drops throughout the home. Using Jriver & OS X 10.8.2.


#8

Before we get too far on this, what is your library stored on? Internal disk, NAS (brand and model please), USB disk (USB 2 or 3?), firewire, eSATA? This could be part of the problem. If not on internal disk, copy some tracks onto the internal drive and try playing them to see if at works better.



I believe the preferred storage order is:

internal, eSATA, Firewire, USB3 and USB2. NAS can fit anywhere between eSATA and USB2, as the transfer rate from a NAS can vary greatly from brand to brand and model to model. USB ranks low due to the processing overhead for data transfers.



J.P.


#9
jmrdc said: .WAV didn't work any better.

Unfortunate, but this was my guess.

Have you tried FLAC?

#10
Before we get too far on this, what is your library stored on? Internal disk, NAS (brand and model please), USB disk (USB 2 or 3?), firewire, eSATA? This could be part of the problem. If not on internal disk, copy some tracks onto the internal drive and try playing them to see if at works better.

I believe the preferred storage order is:
internal, eSATA, Firewire, USB3 and USB2. NAS can fit anywhere between eSATA and USB2, as the transfer rate from a NAS can vary greatly from brand to brand and model to model. USB ranks low due to the processing overhead for data transfers.

J.P.


Library is stored on an internal bay on the Mac Pro (2nd bay)

#11

Well… There goes that idea. :expressionless:



Now, what else can we look at? It might be a process priority issue. Maybe an antivirus issue slowing down disk access? There is still the possibility of network issues, even though 24/192 wav is only about 10% of typical network capacity.



J.P.


#12

Have you tried a different server, eg EMM, Foobar, or Minim? Jriver is still quite new to Mac.


#13

Sorry, the old discussion was that Bridge could not play ALAC/24 bit files.

http://www.psaudio.com/vanilla/discussion/4456/alac-hi-rez-files-on-pwd#Item_6


#14

I have issues as well with 192 files on a mac pro tower with internal drive. A new router helped some, but it still stutters. This is via ethernet. I’d love to get this ironed out. At the NY Audio show they were playing DSD and double DSD files with no issues. Will the PWD ever be able to do DSD?