PDA

View Full Version : Where does the decompression happen on Apple Lossless



gages
2005-10-14, 07:10
Before the stream is transmitted to the SB2 or at the SB2?

Any negatives from a sound standpoint (standards aside) of using apple lossless?


Steve

PhilNYC
2005-10-14, 09:04
My understanding is that it occurs in slimserver before it is transmitted to the SB2 (the SB2 will only decode FLAC). If you go into the Slimserver settings interface and goto "File types", there are a list of format conversion modes. You need to check the one that converts Apple Lossess --> FLAC (and uncheck the rest of them if you only have Apple Lossess files)...

CardinalFang
2005-10-14, 09:04
Before the stream is transmitted to the SB2 or at the SB2?
Any negatives from a sound standpoint (standards aside) of using apple lossless?
Steve

I have ripped all my CDs to Apple Lossless and I believe the decoding is done on the Mac or PC using Quicktime to AIFF (or WAV). I have my server settings so both AIFF and WAV streams are transmitted as is, not encoded again to FLAC. I don't notice any significant slowdown on the Mac when playing music. I use Apple lossless simply because iTunes is great for managing libraries, I've tried EAC but it is so clunky in comparison, good as it is.

Sound is great, to answer your question, my SB2 + Musical Fidelity DAC is nearly up with my Copland CD player and I put that down to the DAC, not the SB2 because I think it would easily hold it's own as a transport against many expensive CD transports.

I would say that I think at some point, SlimServer would really benefit from being a native app, sometimes it really grinds. Obviously the more functionality that gets added to the server, the harder the task is, but equally the slower it's likely to get. Obviously you could get faster hardware, but the nice thing about the server as it is, is that it runs on fairly modest hardware.

Paul

gages
2005-10-14, 09:32
Ripped a few as Apple Lossless and all is working well.

I expect my hard drive light to be on constantly but it is not.

SB2 feeding digital (coax) into my Meridian 861.

Works like a champ!

Hiroyuki
2005-10-14, 10:07
Gages,

Do you hear tiny clicking sound between the soungs with continuous
recordings (like live ones)? I reported that as a bug a while ago.
I also notice very short segment of first part of song cut off with
Apple lossless (probably this is causing the clicking noise between
noise). You will not notice this unless the song starts without any
room at the beginning.

I switched to AIFF and it has been fine but a few days ago I started
to hear popping noise between songs for some recordings. I'm
wondering if this related to the latest itune update (before the 6)
or relating to the particular CDs. Also, I hear popping noise
between songs with WAV files. I use power mac G5 with itunes.

Hiroyuki
On Oct 14, 2005, at 12:32 PM, gages wrote:

>
> Ripped a few as Apple Lossless and all is working well.
>
> I expect my hard drive light to be on constantly but it is not.
>
> SB2 feeding digital (coax) into my Meridian 861.
>
> Works like a champ!
>
>
> --
> gages
>

gages
2005-10-14, 11:02
Nope, all is 100%

Hiroyuki
2005-10-14, 11:12
What's your SS version, iTune version and file type settings in the
server setting?
On Oct 14, 2005, at 2:02 PM, gages wrote:

>
> Nope, all is 100%
>
>
> --
> gages
>

gages
2005-10-14, 11:20
Itunes 5.0.1.4

*Apple AAC, Lossless or Movie File AIFF mov123
*Apple AAC, Lossless or Movie File FLAC mov123/flac
Apple AAC, Lossless or Movie File MP3 mov123/lame (not checked)

SS version 6.1.1

BTW, all defaults

Hiroyuki
2005-10-14, 11:35
Gages,

Thank you. That's very interesting... Are you sure that you played
continuous, seamless recording and you didn't get any tiny clicking
noise to indicate where the next song is starting? What about WAV
files? I hear bigger popping noise between the songs with them. The
issue was filed as #2095. Anybody else experiencing the same issue?

Hiroyuki
On Oct 14, 2005, at 2:20 PM, gages wrote:

>
> Itunes 5.0.1.4
>
> *Apple AAC, Lossless or Movie File AIFF mov123
> *Apple AAC, Lossless or Movie File FLAC mov123/flac
> Apple AAC, Lossless or Movie File MP3 mov123/lame (not checked)
>
> SS version 6.1.1
>
> BTW, all defaults
>
>
> --
> gages
>

gages
2005-10-14, 11:51
have been listening to aac lossless for 2+ hours, no issues

Hiroyuki
2005-10-14, 12:44
Gages,

Thank you. Anybody else having no issue, or having issues with the
bug #2095?

Hiroyuki
On Oct 14, 2005, at 2:51 PM, gages wrote:

>
> have been listening to aac lossless for 2+ hours, no issues
>
>
> --
> gages
>