BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Coding / ConnectedDrive / Audio-Video / Electronics / Bluetooth / I-Drive & Nav
 
GTB Performance
Post Reply
 
Thread Tools Search this Thread
      03-17-2009, 11:01 PM   #1
kmarei
Major General
 
kmarei's Avatar
 
Drives: 1988 E30 M3 Evo II
Join Date: Jul 2008
Location: Reston, VA

Posts: 6,479
iTrader: (33)

Garage List
ipod sound quality improvment with apple cable?

first time i try to connect the ipod with the stadard apple USB-dock cable
and i think it sounds much better
more clarity and cleaner treble
and i think it also improved the very low octaves
am i smoking something?
oh and since all my songs are DRM free, i don't need to use the OEM mini headphone connector, which always looks like its bent too much when i close the arm rest
kmarei is offline   Egypt
0
Reply With Quote
      03-18-2009, 03:42 PM   #2
Technic
Lieutenant General
 
Technic's Avatar
 
Drives: 2012 E92 M3, 2014 528i
Join Date: Apr 2005
Location: Ft Lauderdale, Florida

Posts: 10,981
iTrader: (17)

Garage List
2004 M3  [0.00]
Quote:
Originally Posted by kmarei View Post
first time i try to connect the ipod with the stadard apple USB-dock cable
and i think it sounds much better
more clarity and cleaner treble
and i think it also improved the very low octaves
am i smoking something?
oh and since all my songs are DRM free, i don't need to use the OEM mini headphone connector, which always looks like its bent too much when i close the arm rest
You are bypassing the iPod D/A when the Apple USB cable is used, so the music is going straight digital to the OEM HU/iDrive.

It is like using an USB stick...
Technic is offline   United_States
0
Reply With Quote
      03-18-2009, 04:38 PM   #3
KevinO
Warrior-Poet
 
KevinO's Avatar
 
Drives: 2015 BMW 335i
Join Date: Sep 2008
Location: San Jose, CA

Posts: 163
iTrader: (0)

Quote:
Originally Posted by Technic View Post
You are bypassing the iPod D/A when the Apple USB cable is used, so the music is going straight digital to the OEM HU/iDrive.

It is like using an USB stick...
The downside is (I believe) you don't get access to any of your iPod playlists in that mode.
KevinO is offline   United_States
0
Reply With Quote
      03-18-2009, 05:34 PM   #4
kmarei
Major General
 
kmarei's Avatar
 
Drives: 1988 E30 M3 Evo II
Join Date: Jul 2008
Location: Reston, VA

Posts: 6,479
iTrader: (33)

Garage List
Quote:
Originally Posted by Technic View Post
You are bypassing the iPod D/A when the Apple USB cable is used, so the music is going straight digital to the OEM HU/iDrive.

It is like using an USB stick...

i know
and the ipod is not known for having the best D/A converter out there
kmarei is offline   Egypt
0
Reply With Quote
      03-18-2009, 05:34 PM   #5
kmarei
Major General
 
kmarei's Avatar
 
Drives: 1988 E30 M3 Evo II
Join Date: Jul 2008
Location: Reston, VA

Posts: 6,479
iTrader: (33)

Garage List
Quote:
Originally Posted by KevinO View Post
The downside is (I believe) you don't get access to any of your iPod playlists in that mode.
i don't usualy use playlists
i just have it on shuffle all the time

and i also think that switching from tracks is quicker with the apple cable Vs the BMW one
i noticed it this morning
kmarei is offline   Egypt
0
Reply With Quote
      03-18-2009, 08:13 PM   #6
Technic
Lieutenant General
 
Technic's Avatar
 
Drives: 2012 E92 M3, 2014 528i
Join Date: Apr 2005
Location: Ft Lauderdale, Florida

Posts: 10,981
iTrader: (17)

Garage List
2004 M3  [0.00]
Quote:
Originally Posted by kmarei View Post
i know
and the ipod is not known for having the best D/A converter out there
You are also saving an A/D from the OEM HU/iDrive if you have the Premium Audio...
Technic is offline   United_States
0
Reply With Quote
      03-18-2009, 08:55 PM   #7
kmarei
Major General
 
kmarei's Avatar
 
Drives: 1988 E30 M3 Evo II
Join Date: Jul 2008
Location: Reston, VA

Posts: 6,479
iTrader: (33)

Garage List
base audio for me
didn't think it was worth paying $4000 for
i don't have the nav so i would have had to buy that to get the premium audio
kmarei is offline   Egypt
0
Reply With Quote
      03-18-2009, 10:39 PM   #8
dizman7
Second Lieutenant
 
dizman7's Avatar
 
Drives: 99 E36 M3 Cabio
Join Date: Dec 2008
Location: Phoenix, AZ

Posts: 297
iTrader: (0)

Quote:
Originally Posted by Technic View Post
You are also saving an A/D from the OEM HU/iDrive if you have the Premium Audio...
ok not sure what all the abbervations stand for but I'm curiuos about what you are talking about.

So people are saying that using the Apple USB connnector vs the BMW Y-cable (that comes with the car) for an iPod produces better sound quality on the speakers?
__________________
SOLD - 08 E92 ///M3 (bought a house)
NEW - 99 E36 ///M3 Convertible
dizman7 is offline   United_States
0
Reply With Quote
      03-18-2009, 10:43 PM   #9
KevinO
Warrior-Poet
 
KevinO's Avatar
 
Drives: 2015 BMW 335i
Join Date: Sep 2008
Location: San Jose, CA

Posts: 163
iTrader: (0)

Yes, but prevents you from accessing playlists and is slower to navigate.
KevinO is offline   United_States
0
Reply With Quote
      03-18-2009, 11:18 PM   #10
kmarei
Major General
 
kmarei's Avatar
 
Drives: 1988 E30 M3 Evo II
Join Date: Jul 2008
Location: Reston, VA

Posts: 6,479
iTrader: (33)

Garage List
Quote:
Originally Posted by dizman7 View Post
ok not sure what all the abbervations stand for but I'm curiuos about what you are talking about.

So people are saying that using the Apple USB connnector vs the BMW Y-cable (that comes with the car) for an iPod produces better sound quality on the speakers?
D/A means digital/analogue converter
the mp3 song i am playing is digital
its being converted into analogue to be reproduced by the speakers
if you use the BMW cable
the conversion is done inside the ipod.
the ipods, although i love them, are not known to have the best sound quality
if you use the apple cable (the one that comes with your ipod)
the conversion is done inside the head unit
which based on my experience
sounds better than the conversion done inside the ipod

keep in mind this is only for songs without Digital Rights Management (DRM)
so if you bought all your songs from itunes (except the last few months, they now have drm free)
they will only work if the ipod does the conversion, i.e you have to use the bmw cable
kmarei is offline   Egypt
0
Reply With Quote
      03-18-2009, 11:23 PM   #11
kmarei
Major General
 
kmarei's Avatar
 
Drives: 1988 E30 M3 Evo II
Join Date: Jul 2008
Location: Reston, VA

Posts: 6,479
iTrader: (33)

Garage List
Quote:
Originally Posted by KevinO View Post
Yes, but prevents you from accessing playlists and is slower to navigate.
acually based on my attempts
its faster to switch between songs
now there is almost no lag between pressing forward and hearing the next song
i'd say half a second or less
it used to be more for BMW connection

my guess is when you use the bmw cable
you are using the digital/analogue conversion in the ipod
and i believe the ipod has a 32mb buffer
so when you are using the bmw cable
the ipod reads the entire song from the hd
and stores it in the buffer
then it starts playing from the buffer

when you use the apple cable
you are just sending the file as its converted

kind of like downloading a movie (bmw cable)
or streaming it (apple cable)
kmarei is offline   Egypt
0
Reply With Quote
      03-19-2009, 12:41 AM   #12
KevinO
Warrior-Poet
 
KevinO's Avatar
 
Drives: 2015 BMW 335i
Join Date: Sep 2008
Location: San Jose, CA

Posts: 163
iTrader: (0)

Quote:
Originally Posted by kmarei View Post
acually based on my attempts
its faster to switch between songs
now there is almost no lag between pressing forward and hearing the next song
i'd say half a second or less
it used to be more for BMW connection

my guess is when you use the bmw cable
you are using the digital/analogue conversion in the ipod
and i believe the ipod has a 32mb buffer
so when you are using the bmw cable
the ipod reads the entire song from the hd
and stores it in the buffer
then it starts playing from the buffer

when you use the apple cable
you are just sending the file as its converted

kind of like downloading a movie (bmw cable)
or streaming it (apple cable)
Next/last track may be faster, but I believe searching, switching albums, etc is slower.

It's moot for me. I couldn't survive without playlists. If all I was going to do was shuffle, I'd buy a cheap flash drive, or copy to the car's HD.
KevinO is offline   United_States
0
Reply With Quote
      03-20-2009, 08:30 AM   #13
nkweisberg
Private
 
Drives: E92 M3 Le Mans Blue / Bamboo
Join Date: Dec 2008
Location: South-East Florida

Posts: 72
iTrader: (1)

I used the white ipod cable to plug my ipod into the USB port in the center armrest and got an error that it was not a supported device??? How did you get this to work on your cars?
nkweisberg is offline   United_States
0
Reply With Quote
      03-20-2009, 09:56 AM   #14
nkweisberg
Private
 
Drives: E92 M3 Le Mans Blue / Bamboo
Join Date: Dec 2008
Location: South-East Florida

Posts: 72
iTrader: (1)

I used the white ipod cable to plug my ipod into the USB port in the center armrest and got an error that it was not a supported device??? How did you get this to work on your cars?
nkweisberg is offline   United_States
0
Reply With Quote
      03-20-2009, 01:23 PM   #15
kmarei
Major General
 
kmarei's Avatar
 
Drives: 1988 E30 M3 Evo II
Join Date: Jul 2008
Location: Reston, VA

Posts: 6,479
iTrader: (33)

Garage List
was it an ipod, or an ipod touch?
i've tried both ipod classic 160gb and ipod photo 30gb
both worked fine
kmarei is offline   Egypt
0
Reply With Quote
      03-20-2009, 01:32 PM   #16
dogears
My master volume goes to 11
 
dogears's Avatar
 
Drives: 2009 Space Gray M3 Sedan M-DCT
Join Date: Dec 2008
Location: Cherry Hill, NJ

Posts: 424
iTrader: (0)

My IPOD Touch 2 was not recognized when using the white apple cable into USB port in armrest. 2009 E90 w/Premium Sound.
dogears is offline  
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 05:18 PM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST