Re: [slim] .m4a stuttering and possible codec issue

2008-10-09 Thread milesbeverley

Problem has been solved

I took the plunge and bought a sitecom 200mps homeplug package. It cost
me 125 euros. Yes, I could have bought acheaper one but  I wanted to
make sure that it worked properly and was supported. I initially
plugged one into the time capsule and the other into the airport
express. The airport couldn't work with it in that configuration. No
wifi computer could access the airport. I think the ethernet port on
the aiport is only meant for computers, printers etc. The time capsule
will only connect to the airport wirelessly. 

So instead I plugged the homeplug direectly into the SB receiver,
selected ethernet conectioo on the handset and everything worked first
time. No stutter. After testing the buffer fullness I now get 100%
whereas before I was only getting <10%.

Thank you again for your help BPA. The homeplug did seem to be the best
and simplest option. I should have used that instead of buying an
airport express.

I won't test the hiss as this only occurred when I changed the bit
rate...now that everything is working I will leave it as it is.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-08 Thread bpa

Regarding your network.

First - a quick answer about Homeplug.  A pair of Homeplug adaptors
will act as an Ethernet cable.  They usually require no configuration
and are usually invisible to the connected devcies. The speed can vary
between from about 70mbps to 2mbps depending on the "quality" of your
wiring and whether the sockets there are many circuits between the
sockets being used for Homeplug. 

Assuming the Time Capsule-Airport Express wireless link is a
"weakpoint" in your network and/or the WDS functionality is reducing
bandwdith, the solution may be to connect Time Capsule-Airport Express
with a wired connection either Ethernet or Homeplug.  Once wired, you
then have a choice to still use WDS  or to set Airport Express as an
Access point. Airport Express using WDS may still have bandwidth
reduction issues but Access point may have interference issues if there
is overlap in the coverage between  Time Capsule and Airport Express.

Given that there is no ideal solution, it may be worthwhile considering
why you found the need to use an extender in the first place.  

Just looking at Apple website - neither Time Capsule nor Airport
Express have external antenna, however the TC uses 802.11n.  

There also seems to be discussions (
http://forums.macrumors.com/showthread.php?t=448450 ) that the TC may
not be the best choice as the main wireless router.

Unless you have very solid walls, I wonder whether a single router with
external antenna (probably extended range antenna) might provide
adequate coverage.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-08 Thread bpa

To investigate the "hiss" issue using WMP as a player and also varying
quality settings and bitrates. 

To convert an m4a files into mp3 using faad, use the following commands
issues from a command prompt.

The following command converts the file test.m4a into a raw WAV file
test.wav. 
faad -w -f2 test.m4a >test.wav

The following command converts the raw WAV file test.wav into an MP3
file test.mp3 
lame --resample 44100 -q 2 -b 320 -x -r test.wav test.mp3

The option after "-q" is the quality of compression (1=slow good,
9=fast,poor) and the values after "-b" is the bit rate.

You can also compare against the standard SC conversion using mov123
The following command converts the file test.m4a into a raw WAV file
test.wav using mov123. 
mov123 test.m4a >test.wav

The WAV->MP3 conversion is similar but I think you need to omit the
"-x"
lame --resample 44100 -q 2 -b 320 -r test.wav test.mp3


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-08 Thread milesbeverley

BPA : This should include:

What is the hardware in the network (I.e. PC, router, NAS, Time
Capsule, switches/hubs, any other network equipment).

How are the equipment connected (e.g. wired/wireless from PC to router,
wired/wireless  from router to extender, wired/wireless Time Capsule to
?)

Answer : The modem is wired to the Time Capsule. The time capsuule acts
as a Router. The Time Capsule is wired to the PC running Vista Home. I
use an Aiport Express as an Extender (select extended network under
Airport settings). The extender is placed about 10-15m away from the
router in another room. The Extender is connected wirelessly to the
Router. I have 2 SB receivers. 1 receiver is next to the Pc and about
4m away from the router. This receiver works fine. The other receiver
is about 1.5m away (and I have tested 3m away) from the extender in the
bedroom. 

How is extender confgigured WDS or other ?
IS the SSID of extender the same as the wireless router ?  
Can you tell whether SB connects wirelessly to extender or router ?

Answer: The extender is configured as "Extend Network". The other
options I could use are 1) Create a wireless network, 2) participate in
a WDS network, 3) join a wireless network. The extender and Router both
use the same Network name (ssid). The extender is setup to use DHCP.

For the time capsule the radio mode is 802.11n (b/g compatible). The
time capsule also uses DHCP.


Static network addresses or DHCP ?


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-08 Thread bpa

Before offering any network advice - please describe the network
topology in detail and the connected equipment.

This should include:

What is the hardware in the network (I.e. PC, router, NAS, Time
Capsule, switches/hubs, any other network equipment).

How are the equipment connected (e.g. wired/wireless from PC to router,
wired/wireless  from router to extender, wired/wireless Time Capsule to
?)

How is extender confgigured WDS or other ?
IS the SSID of extender the same as the wireless router ?  
Can you tell whether SB connects wirelessly to extender or router ?

Static network addresses or DHCP ?


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-08 Thread milesbeverley

dcote;347916 Wrote: 
> 
> does your vista machine seem sluggish sometimes?
> and did you try connecting through a wire? if that works fine, you
> obviously have a WLAN problem. if not, you have a server problem.



Dcote : The PC doesn't seem sluggish. I checked the CPU usage and it
varies between 5% and 15% when playing an .m4a file. It seems to be a
WLAN problem.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-08 Thread milesbeverley

The preference files were there but for some reason I still had to go
through the setup process again.

I am currently using Faad 2.6.1 (just downloaded ysterday). The hiiss
only occurs when I set a bandwidth limit. Maybe it is the low
compression which causes the hiss. I used iTunes to create my .m4a
files. The latest version (8.01) was used to create some music files
which I have tested.

Playing the SB receiver in wired mode (to the router) the buffer
fullness is 100% and there is no stuttering. Next test was check the SB
receiver without the wired connection  (wireless) near to the router.
When selecting the player the controller showed me two receivers both
with the same code (one had upper case the other lower). Strange...So
wireless and next to the router gives no stuttering and 100%
bufferfullness.

I even tried connecting an ethernet cable from the airport express to
the SB receiver in the bedroom but still stuttering and <10% buffer
fullness.

Ok. is there anything else I can try or do I need to purchase this
extra Homeplug kit to get the SB receiver working? Is it easy to setup
the Homeplug kit and can it extend my current network or does it create
a separate network? You also mention setting up an AP. Do you mean
Access Point? Can I use my Aiport Express to do this? If I have another
ssid (network name) how can the SB Center stream music to two SB
receivers both sitting on two different networks? I am not a network
expert so before I start to buy anymore equipment I need to understand
how this can all be configured  to work together.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-08 Thread dcote

here are a few cents of mine:

i ran my SC7 on windows 2003 server on a really resource-starved 700MHz
PIII - equivalent with 1GB RAM (a VIA ITX system). playing apple worked
just fine (even with mov123) *unless* my server was busy doing
something else. symptoms:

playing an apple track the first time took about 20-25 seconds to
commence
playback started then stuttered or stopped after some seconds
good wlan signal (40-60%)
network diagnostics showed nothing untoward
buffer dropping to zero

i discovered my server was sometimes so busy that it could not decode
apple and re-code to FLAC fast enough. (i used the windows performance
monitor for this). using mov123, my via cpu would clock in at about 40%
(!) cpu usage to decode aac and re-code to flac...

i changed the transcoding settings to output WAV, which reduced the cpu
cycles enough (to about 30%) to provide a reasonably steady stream
*most* of the time.

other times, i just had to shut down some cpu/ram hogging apps (emule
was the worst, keeping the web-UI open second!) to make it work
properly.

does your vista machine seem sluggish sometimes?
and did you try connecting through a wire? if that works fine, you
obviously have a WLAN problem. if not, you have a server problem.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-08 Thread bpa

> 
> 1+3) I am now using Faad 2.6.1.
> 

Can you confirm you still have hiss with 2.6.1 ?
If you have hiss, it's possible the m4a's have some new encoding and
FAAD hasn't been updated. What version of iTunes did you use to create
the m4a's or when were they created ?

If you have hgiss with 2.6.1,  I'll post later today some example
command line to convert your m4a into mp3 so that the converted mp3's
can be tested in WMP to confirm the "hiss" is in the file conversion
and not SB playback.  Last night I did some m4a to mp3 tests and Faad
2.0 had hiss but 2.6.1 had none.   


> 
> 2) Are you suggesting that I test the SB3 with a wired connection to
> the router? I can do that but I have already proved that the buffer
> fullness increases when the SB3 is near the PC.
> 
A test without wireless would check whether there is any residual
stuttering due to faad.  You need to ensure that stuttering is now
purely wireless in origin. If there are 2 sources of stuttering then
the non-wireless source must be eliminated first otherwise any wireless
testing is uncertain.

> 
> The reason I bought the Duet was to distribute music around my
> apartment. If it can't even stream music to a bedroom which is 5 metres
> away (even with an extender) then it isn't doing the job that I bought
> it for. As you can see this is becoming very frustrating as it should
> work out of the box.
> 
Understandable but local environment can affect wireless - such a thick
walls or internal wall insulation which has metal foil.

> 
> Now the SqueezeCenter has crashed my PC and after rebooting it has lost
> all my settings. So when starting the SC Iam asked to go through the
> setup assistant again. Is there another way around this or do I need to
> setup everything again??
> 
I am bit sceptical that SC has crashed Vista. The settings are kept in
the prefs directory. If the server settings are there then you should
be able to restart.

> 
> Is there another way to set the extender (or network) to increase the
> bandwidth for streaming?
> 
Rather than use an extender - you could use a Homeplug network
connection between router and SB or to set up an AP (with separate
ssid) closer to the SB.  I use this solution in a room which is foil
insulated an distant from main router.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-08 Thread milesbeverley

In answer to your questions:

1+3) I am now using Faad 2.6.1.

2) Are you suggesting that I test the SB3 with a wired connection to
the router? I can do that but I have already proved that the buffer
fullness increases when the SB3 is near the PC. The reason I bought the
Duet was to distribute music around my apartment. If it can't even
stream music to a bedroom which is 5 metres away (even with an
extender) then it isn't doing the job that I bought it for. As you can
see this is becoming very frustrating as it should work out of the
box.

Now the SqueezeCenter has crashed my PC and after rebooting it has lost
all my settings. So when starting the SC Iam asked to go through the
setup assistant again. Is there another  way around this or do I need
to setup everything again??

Is there another way to set the extender (or network) to increase the
bandwidth for streaming?

I will also test the connection for stuttering without the extender and
see if that improves things.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread bpa

I think you have have three problems.

1. Vista and m4a stuttering when using mov123.  This is well documented
and  changing from mov123 to faad eliminates the stuttering.

2. Stuttering due to wireless. It sounds like your wireless extender is
muddying the issue. - if the extender has a poor link back to server but
is close to SB - you will get high wireless signal but poor throughput. 


Also the propagation from a simple dipole antenna is doughnut shaped so
immediately besides a AP may not give the optimum signal.  I think
extender can reduce throughtput of the wireless network overall.

I suggest testing wired to router or at least just have a single
wireless stations and an SB 3-4m away from it. 

3. Will you check the version of faad you have installed.  I found that
there is a background hiss when faad 2.0 is used but there is no hiss
when version 2.6 is used.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

I have Zone Alarm running. I have already tried the connection when
Zonealarm is switched off and it doesn't make any difference. It will
be difficult to connect an ethernet cable as the Squeezecenter is
running on a Tower PC Vista. If I move the receiver to the PC then it
is the same as using the wifiit will give a 100% buffer fullness.
It does seem to be the wifi connection in some wayif I move the
receiver further away the buffer fullness decreases.

For my current setup I use a time capsule router with an  airport
express to extend the network. The receiver with the problems sits next
to the airport express. The Vista running the Squeezecenter is sitting
near the time capsule. The airport is boosting the signal. I will try
turning off the airport express and see if that helps but the signal
strength will presumably drop.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread Phil Leigh

Well that's odd...normally a very bad wireless signal will prevent the
buffer filling... but it seemed you had fixed the wireless strength
issue - or maybe not!

There really isn't much difference between WS of 90 vs 100...
It seems to me there must be another mechanism at play.

Do you have any anti-virus running? (just a thought).
Can you plug in an ethernet cable temporarily to eliminate the wi-fi as
an issue?
If Buffer fullness is fine when wired, that does narrow the problem
down quite a bit...


-- 
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You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...SB3+Stontronics PSU - Altmann
JISCO/UPCI - TACT RCS 2.2X + Good Vibrations S/W - MF
Triplethreat(Audiocom full mods)- Linn 5103 - Aktiv 5.1 system (6x
LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters,
Kimber & Chord cables
Outdoors: Boombox+Creative Sub (If I remember to turn it on...)

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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

I now moved the receiver to sit beside the PC and router. Singal
strength didn't change but buffer fullness went upto 100%. I moved it
back to my bedroom...signal strength was very good at 90% but buffer
fullness went down to less than 10%!!! This seems to be confusing. Why
would the signal strength be good but the buffer can't fill up quick
enough?? Unless the files are still being transferred as large files
and aren't really encoded to a smaller stream???


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

I also changed the router channel number but that didn't have any
effect.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

I checked the MAC addresses and they match. The player (as I have two
players) report a 88% wireless singal strength. Still the buffer is
less than 10%. On my other player the buffer is 100% but that is
probably because it is near the PC with the SqueezeCenter installed
(and router).

BTW, the firmware is reported as 47 on the player. Is that the latest
firmware?


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

Phil, thank you for your response. I can see the MAC address written on
the bottom of the recivers...how do I check this with the assigned MAC
address? Also how do I check for IP conflicts and then dcide which IP
address to set to static? Sorry for the basic questions but I'm not a
network specialist and I presumed that all this should have worked from
the box.

regards,

Miles


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread Phil Leigh

milesbeverley;347647 Wrote: 
> I am now getting buffer fullness warnings.
> 
> Buffer Fullness
> This graph shows the fill of the player's buffer. Higher buffer
> fullness is better. Note the buffer is only filled while the player is
> playing tracks.
> Squeezebox1 uses a small buffer and it is expected to stay full while
> playing. If this value drops to 0 it will result in audio dropouts.
> This is likely to be due to network problems.
> 
> Squeezebox2/3 uses a large buffer. This drains to 0 at the end of each
> track and then refills for the next track. You should only be concerned
> if the buffer fill is not high for the majority of the time a track is
> playing.
> 
> Playing remote streams can lead to low buffer fill as the player needs
> to wait for data from the remote server. This is not a cause for
> concern. 
> 
> < 10 :  122 :100%
> ##
> < 20 :0 :  0% 
> < 30 :0 :  0% 
> < 40 :0 :  0% 
> < 50 :0 :  0% 
> < 60 :0 :  0% 
> < 70 :0 :  0% 
> < 80 :0 :  0% 
> < 90 :0 :  0% 
> < 100 :0 :  0% 
> >=100 :0 :  0% 
> max  : 8.274206
> min  : 0.00
> avg  : 0.435097
> 
> is this something to do with the problem?


Absolutely - this is the evidence of stuttering(apart from the fact you
can hear it!)...the buffer needs to remain pretty much full most of the
time, except at teh beginnign and end of songs - yours is mostly
empty!.

Also, before you fixed it, your wireless strength was no good - so you
had two problems - now you have one (the buffer fullness).

Now you need a Mac expert to help you - the only time I had this (on
XP) it was a bizarre IP/Mac address conflict. You might want to check
that the MAC address of your slim device (as shown in the settings on
th eplayer itself) do indeed correspond to the label on the bottom -
and also that you don't have an IP conflict. If possible, set the
server to use static IP.


-- 
Phil Leigh

You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...SB3+Stontronics PSU - Altmann
JISCO/UPCI - TACT RCS 2.2X + Good Vibrations S/W - MF
Triplethreat(Audiocom full mods)- Linn 5103 - Aktiv 5.1 system (6x
LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters,
Kimber & Chord cables
Outdoors: Boombox+Creative Sub (If I remember to turn it on...)

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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

I am now getting buffer fullness warnings.

Buffer Fullness
This graph shows the fill of the player's buffer. Higher buffer
fullness is better. Note the buffer is only filled while the player is
playing tracks.
Squeezebox1 uses a small buffer and it is expected to stay full while
playing. If this value drops to 0 it will result in audio dropouts.
This is likely to be due to network problems.

Squeezebox2/3 uses a large buffer. This drains to 0 at the end of each
track and then refills for the next track. You should only be concerned
if the buffer fill is not high for the majority of the time a track is
playing.

Playing remote streams can lead to low buffer fill as the player needs
to wait for data from the remote server. This is not a cause for
concern. 

< 10 :  122 :100%
##
< 20 :0 :  0% 
< 30 :0 :  0% 
< 40 :0 :  0% 
< 50 :0 :  0% 
< 60 :0 :  0% 
< 70 :0 :  0% 
< 80 :0 :  0% 
< 90 :0 :  0% 
< 100 :0 :  0% 
>=100 :0 :  0% 
max  : 8.274206
min  : 0.00
avg  : 0.435097

is this something to do with the problem?


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

This is the output from the 128k network test.

< 10 :0 :  0% 
< 20 :0 :  0% 
< 30 :0 :  0% 
< 40 :0 :  0% 
< 50 :0 :  0% 
< 60 :0 :  0% 
< 70 :0 :  0% 
< 80 :0 :  0% 
< 90 :0 :  0% 
< 95 :0 :  0% 
< 100 :0 :  0% 
>=100 :   21 :100%
##
max  : 100.00
min  : 100.00
avg  : 100.00


I have now switched on the performance monitoring and it shows this:

The server is currently collecting performance statistics for this
player. 

You may set warning thresholds for each measurement. Events which
exceed this threshold will be logged to a log file. The log is stored
at: C:\ProgramData\SqueezeCenter\Logs\perfmon.log 
Signal Strength
This graph shows the strength of the wireless signal received by your
player. Higher signal strength is better. The player reports signal
strength while it is playing. 
< 10 :0 :  0% 
< 20 :   12 : 14% ##
< 30 :   48 : 56% ###
< 40 :4 :  5% ##
< 50 :   22 : 26% 
< 60 :0 :  0% 
< 70 :0 :  0% 
< 80 :0 :  0% 
< 90 :0 :  0% 
< 100 :0 :  0% 
>=100 :0 :  0% 
max  : 44.00
min  : 16.00
avg  : 27.906977

Control Connection
This graph shows the number of messages queued up to send to the player
over the control connection. A measurement is taken every time a new
message is sent to the player. Values above 1-2 indicate potential
network congestion or that the player has become disconnected. 
< 1 : 3483 :100%
##
< 2 :0 :  0% 
< 5 :0 :  0% 
< 10 :0 :  0% 
< 20 :0 :  0% 
>=20 :0 :  0% 
max  : 0.00
min  : 0.00
avg  : 0.00

It seems that the player shows a lower signal strength. Which is
strange as I have an airport express sitting right by the player.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

I have played round with the bit rate limit and seen different things
happen. The hiss seems to occur at 160kps. I then set the bit rate
limit to 128kps (as my .m4a files are 128k). The music starts well (no
hiis and no stutte) but then after 30  seconds it starts to stutter. I
then tried another music file and the hiss comes back even at 128k
limit. When I set the bit rate limit = No limit then the file plays for
5 seconds then stutters (no hiss). Hope this helps you figure out what
is wrong??


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

and i can confirm that the AAC file types look like:

Flac = Faad/flac
mp3 = faad/lame
wav = faad


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

I have followed you're instructions. The sound doesn't stutter but there
is bad hiss (like tape hiss) over the music and also the internet radio.
Have you come across this problem before?


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread bpa

This post has the instruction for using FAAD instead of mov123. Just do
stesp 3 & 4 as I think you already have done steps 1 & 2. 

http://forums.slimdevices.com/showpost.php?p=329123&postcount=4

The benefit of using custom-convert.conf means to revert to mov123 just
delete (or rename) the custom-convert.conf file and restart SC.  Makes
it easy to do comparison tests.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-07 Thread milesbeverley

I have usedhealth test. At 128kps everything is above 100%. At 320kps
this is the graph.

< 10 :0 :  0% 
< 20 :0 :  0% 
< 30 :0 :  0% 
< 40 :0 :  0% 
< 50 :0 :  0% 
< 60 :0 :  0% 
< 70 :1 :  1% 
< 80 :0 :  0% 
< 90 :5 :  3% #
< 95 :6 :  4% ##
< 100 :4 :  3% #
>=100 :  130 : 89% 
max  : 100.00
min  : 64.102564
avg  : 98.876449

BPA : I originally used FAAD and the problem wwent away 90% of the
time. SOmething changed on my system (i presumed it was the codecs I
downloaded) and the stuttering  came back with FAAD as well. I have now
tried LAME (as instructed by Logitech on their help pages) but the
stuttering continues. Can you please send me the link to the custom
convert file so I can use that instead of always updating the original
convert file. Thanks.


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-06 Thread TrainedMonkey

i bought a squeezebox duet and installed squeezecenter on an old
powerbook g4 (550MHz) running mac os x 10.5.x, all files are
ALAC-encoded (apple lossless) and housed on an external 1TB hard drive
connected via firewire 400 (fastest connection the powerbook has). the
powerbook is connected via gig-e to a linksys gig-e switch. the
receiver piece of the duet is connected to the linksys switch as well,
but of course the receiver is only 100Mb capable.

when i first received the duet, i installed squeezecenter 7.0 on the
powerbook and everything was happy. squeezecenter 7.1 came out and i
installed it. that's when the stuttering started. a few seconds of the
track play, then it goes silent, one or two seconds later, it starts
playing again. i removed 7.1 and reinstalled 7.0 and the receiver
reloaded its firmware. the stuttering continued, but then the "magic
moment" happened ... the firmware on the controller (aka the remote)
was updated and after it rebooted, the stuttering was GONE (back to
happy times).

in the meantime, i had purchased a readynas NV+ (upgraded to 1GB ram
and 4 x 500GB disks). i tried both SC 7.1 and SC 7.2 (very recently
released) on the readynas and both exhibit the start of track
stuttering problem.

i haven't tried SC 7.2 on the powerbook yet, but i'm guessing it will
exhibit the same stuttering issue. it seems to be related to the
controller software in my case and i'm really hoping it can be fixed so
i can use my readynas (main reason i purchased it was to have it serve
my music library).

the reason i went with ALAC instead of FLAC is because i don't want to
duplicate my music library (i already use itunes for my ipod and will
for an iphone in the future). it would be REALLY cool if logitech
allowed you to load the squeezebox with whatever codecs you wanted (as
i only use ALAC). perhaps it's a licensing issue?

thanks in advance for any help in resolving my issue (for now i'm back
to SC 7.0 running on my old dinosaur powerbook serving my music).


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-06 Thread what_to_buy

This may not be relevant at all, but I went through a similar process
dealing with stuttering. Once I switched to ethernet powerline
adapters, everything was perfect (it started out as a codec issue but
wasn't totally resolved until I also took care of the connection).
Could be a worth a try. Good luck!


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-06 Thread bpa

In your first post  you said you had no problem once you changed from
mov123 to FAAD.  Your Filetypes settings shows you are back using
mov123.

Try using FAAD again as there is no sign of it in the convert file.

Previoulsy did you use the custom-convert.conf file I posted in another
thread ?


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-06 Thread Phil Leigh

run the server health tests and report back (help icon bottom left of
home page)


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Triplethreat(Audiocom full mods)- Linn 5103 - Aktiv 5.1 system (6x
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Re: [slim] .m4a stuttering and possible codec issue

2008-10-06 Thread milesbeverley

I just noticed that I didn't copy the Lame .dll in to the win direcory.
Have now done that and rebooted. No difference.

Ok settings for  are 

AIF = mov123
flac = mov123/flac
MP3 = mov123/lame

I have attached my config file for your attention.

Thanks, BPA.


+---+
|Filename: convert.zip  |
|Download: http://forums.slimdevices.com/attachment.php?attachmentid=5984|
+---+

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Re: [slim] .m4a stuttering and possible codec issue

2008-10-06 Thread milesbeverley

just a quick addition : the music files seem to play ok for less than 5
secs then they stutter. I have used the latest LAME.exe ( from
http://www.rarewares.org/mp3.php) and BIt rate limited the files to
128k. I am running a fast dual core PC with plenty of memoryand it
isn't running any other intensive processes. It should be capable of
converting the AAC files for streaming!


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-06 Thread bpa

What are the current FileType settings for MOV ?


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Re: [slim] .m4a stuttering and possible codec issue

2008-10-06 Thread milesbeverley

I have now installed the LAME.exe application as specified in the
threads however the music still stutters. I have also set the bandwidth
limit to 128kps but no improvement. Does anybody have any other
suggestions as my Squeezebox installation is practically useless at the
moment?

-Miles


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Re: [slim] .m4a stuttering and possible codec issue

2008-09-29 Thread bpa

Bot FAAD and MPlayer use the same libraries so there should be no
difference in the quality of audio decode.

FAAD only decodes AAC so it is much smaller and possibly more efficient
but there is minimal maintenance.

MPlayer is a swiss army knife application - it can handle lots of
codecs and transport as well as video so it is much bigger. IT has
ongoing development so it is well maintained.

In terms of resources FAAD is the better choice - it should use less
memeory and be quicker to start up.

MPlayer may be useful for users who also use ALienBBC, AACplus and
possible WMA support for Softsqueeze.  Some users prefer just to have
one app as it minimises support issues.


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Re: [slim] .m4a stuttering and possible codec issue

2008-09-29 Thread volpone

bpa;32 Wrote: 
> To get CPU and memeory usage "top" is the usual tools but I don't know
> if it is available for your NAS.
> 
> If items are greyed out in Settings/Filetypes then it is either
> a. There is no rule in convert.conf or custom-convert.conf
> b. The applications specified in the rules in convert.conf or
> custom-convert.conf could not be found.
> 
> 
> In your case - the excerpt from convert.conf
> 1. There is no AIFF rule
> 2. Your MP3 rule is commented out.
> 
> AIFF is irrelevant in this case as it is effectively the same as WAV.

Thank you bpa.

Transcoding AAC to FLAC is the best compromise with my configuration
(more bandwith consumption but less NAS ressources used). That's works
quite well except when several players are synched (sometimes sounds
"choppy" of a track).  Last question, is there some benefits using FAAD
vs MPLayer to transcode ?

Regards

Volpone


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Re: [slim] .m4a stuttering and possible codec issue

2008-09-26 Thread bpa

To get CPU and memeory usage "top" is the usual tools but I don't know
if it is available for your NAS.

If items are greyed out in Settings/Filetypes then it is either
a. There is no rule in convert.conf or custom-convert.conf
b. The applications specified in the rules in convert.conf or
custom-convert.conf could not be found.


In your case - the excerpt from convert.conf
1. There is no AIFF rule
2. Your MP3 rule is commented out.

AIFF is irrelevant in this case as it is effectively the same as WAV.


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Re: [slim] .m4a stuttering and possible codec issue

2008-09-26 Thread volpone

bpa;344167 Wrote: 
> Any format which is not native (i.e. not Flac, MP3, WMA, Wav) has to be
> transcoded into one of the native format of WAV, Flac or MP3.
> 
> If transcoding is into Flac, then no matter what the encoding rate
> (e.g. 32kbps, 320kbps) of the source - the Flac stream from server to
> player will always require about the same bandwidth about 1500kbps.
> 
> If the transcoding is into MP3 then the user may be able to select the
> quality and bitrate of the MP3 bitstream sent between server and
> player. If a user wants to limit bandwidth to a plauyer then setting
> the "Bit rate limit" will automatically choose the MP3 forma.  
> 
> Typically for NAS systems with low power CPUs there is a compromise
> between bandwidth and CPU utilisation.  If stuttering is happening on a
> NAS system with transcoded streams - two possible cause include - lack
> of bandwidth or CPU overload.  Many NAS systems have a CPU which do not
> support Floating point and can suffer from CPU overload if the decoding
> (e.g. mplayer) and encoding applications (e.g. flac, lame) are not
> compiled to use Fixed point arithmetic.
> 
> Furthermore even with Fixed point the processor of a NAS system may not
> have enough memory or CPU capacity to handle multiple or synced streams.

Thank you very much bpa. 

=> Streaming as FLAC on a single player is OK.

=> Steaming as FLAC when synching several players is "choppy" at the
begining of each tracks . Is it a bandwith limit or a CPU/Mem issue ? 

=> Using "Bit rate limit" (lame) option seems to cause CPU overload (my
hardware is a 500 Mhz CPU NAS).

I'm not understanding well the SC settings > advanced > format UI, see
screen capture.
- Why AIFF and MP3 type are greyed ?
- How to choose between format types ? 

Thank's in adavance

Volpone


+---+
|Filename: format_UI.jpg|
|Download: http://forums.slimdevices.com/attachment.php?attachmentid=5916|
+---+

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Re: [slim] .m4a stuttering and possible codec issue

2008-09-25 Thread bpa

Any format which is not native (i.e. not Flac, MP3, WMA, Wav) has to be
transcoded into one of the native format of WAV, Flac or MP3.

If transcoding is into Flac, then no matter what the encoding rate
(e.g. 32kbps, 320kbps) of the source - the Flac stream from server to
player will always require about the same bandwidth about 1500kbps.

If the transcoding is into MP3 then the user may be able to select the
quality and bitrate of the MP3 bitstream sent between server and
player. If a user wants to limit bandwidth to a plauyer then setting
the "Bit rate limit" will automatically choose the MP3 forma.  

Typically for NAS systems with low power CPUs there is a compromise
between bandwidth and CPU utilisation.  If stuttering is happening on a
NAS system with transcoded streams - two possible cause include - lack
of bandwidth or CPU overload.  Many NAS systems have a CPU which do not
support Floating point and can suffer from CPU overload if the decoding
(e.g. mplayer) and encoding applications (e.g. flac, lame) are not
compiled to use Fixed point arithmetic.

Furthermore even with Fixed point the processor of a NAS system may not
have enough memory or CPU capacity to handle multiple or synced streams.


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Re: [slim] .m4a stuttering and possible codec issue

2008-09-25 Thread volpone

bpa;343955 Wrote: 
> The AAC files will be decoded on the server and then, if using defasult
> settings, sent as Flac to SB - so you need bandwidth of about 1500kbps
> between server and player.

bpa, please could you confirm same bandwith is needed when using the
following custom-convert.conf settings ? see this thread:
http://forums.slimdevices.com/showthread.php?t=52949&referrerid=16531 
Thank's in advance

Volpone


Code:


  #mov mp3 * *
  [mplayer-stdout] -really-quiet -vc null -vo null -cache 128 -af 
volume=0,resample=44100:0:1,channels=2 -ao pcm:nowaveheader:file=- $FILE$ 
2>/dev/null | [lame] --silent -r -x -q $QUALITY$ -b $BITRATE$ - - 2>/dev/null
  mov flc * *
  [mplayer-stdout] -really-quiet -vc null -vo null -cache 128 -af 
volume=0,resample=44100:0:1,channels=2 -ao pcm:nowaveheader:file=- $FILE$ 
2>/dev/null | [flac] -cs --endian=little --channels=2 --sign=signed --bps=16 
--sample-rate=44100 --compression-level-0 - - 2>/dev/null
  mov wav * *
  [mplayer-stdout] -really-quiet -vc null -vo null -cache 128 -af 
volume=0,resample=44100:0:1,channels=2 -ao pcm:waveheader:file=- $FILE$ 
2>/dev/null 



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Re: [slim] .m4a stuttering and possible codec issue

2008-09-25 Thread bpa

The AAC files will be decoded on the server and then, if using defasult
settings, sent as Flac to SB - so you need bandwidth of about 1500kbps
between server and player.


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Re: [slim] .m4a stuttering and possible codec issue

2008-09-25 Thread milesbeverley

I should have mentioned before that these files were all encoded to AAC
128k using the Apple encoder. So they are half the size of the MP3
files.


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Re: [slim] .m4a stuttering and possible codec issue

2008-09-24 Thread bpa

faad does not use any other files - it doesn't matter what codecs you
have installed.  The same source code faad works on Windows, OSX and
Linux.

The new instance of stuttering is probably another problem.


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Re: [slim] .m4a stuttering and possible codec issue

2008-09-24 Thread Peter
milesbeverley wrote:
> Ever since I bought the Squeezebox Duet I have had problems playing the
> standard Apple .M4A files without the audio stuttering. I fund a post
> on this forum explaining how to change the config file to add the FAAD
> program to play MOV files. Everything worked fine (with only minor
> stuttering) until this morning...
>
> I installed the k-lite codec pack which asked to uninstall a number of
> seemingly duplicate codecs on my Vista system. Then there was no audio
> from the Squeezebox. I assumed it need to have Quicktime reinstalled so
> I uninstalled itunes and reinstalled the latest version. The stuttering
> audio is back. I then updated the config file again however this time
> the stuttering audio continues. It doesn't start immediately but when
> it does it keeps stuttering. I have tried rebooting etc but nothing
> helps.
>
> As the Squeezebox has been around for a while now has anymore figured
> out a solid fix for the stuttering .M4A files? Help would be greatly
> appreciated!
>   

Are you sure this isn't just another wireless bandwidth issue? The m4a 
files are probably lossless and use a lot more bandwidth than mp3.

Regards,
Peter

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