How does iTunes check if files change?

I used MP3Gain to smooth the volume levels of my whole iTune directory. I get the feeling that it touched hundreds of files. When I synced, iTunes updated a suspiciously small number of songs. How can I check, if a given song is up-to-date between iTunes and iPod or not? What's the algorithm to decide, whethet a song file needs to be updated? The Windows change date? Is this reliable, or could MP3Gain modify it so that it stays the same?
Is there a way to force the update of songs manually, without resetting the iPod (besides fake "changes")?
PC Windows XP Pro

My guess is that if you use an application outside of iTunes and make changes to the source files, iTunes will not know they are changed. iTunes only would update songs on the iPod if you make a chance to them within iTunes.
If you want to be absolutely sure all the tunes are updated in your iPod, then you will want to remove them all from the iPod and get everything re-synced back into the iPod.
Patrick

Similar Messages

How does one check for view changes to avoid unnecessary reprovision?

I have a couple of ActiveSync resources that I setup custom userforms and workflows for to sync up only a couple of attributes from each one. With ActiveSync whenever a user account is modified it processes the modified account no matter which attributes were actually modified. For example, if I want to sync the email attribute from an Active Directory resource the ActiveSync workflow receives modification events for all changes to Active Directory accounts, not just email. With my simple workflow what often happens is that I reprovision the accounts even when no changes are made. The downside of this is that the Lighthouse account is marked as being modifed by the ActiveSync proxy user even though no real changes were made and extraneous server tasks are generated that have no results.
In my workflow I would like to somehow predetermine if the reprovision will actually make changes and if not cancel the workflow. Is there some utility class that I can use to check for modifications or some option I can pass into the reprovision workflow to accomplish this? I probably could check the user.update.accounts[resource].changes before calling reprovision but that would seem to require a lot of express coding and comparisons.

I don't have an answer for you but I do have a question. I have been researching the issue of which channels in the 2.4 band are permitted according to law in the various countries in Europe. We have offices in Germany, France, Spain, Netherlands and England and I was wondering which channels we are permitted to use. Do you know or could you point me to a document I could read?

HT1550 Exactly how does iTunes create an AIFF file from an Apple Lossless File?

Exactly how does iTunes create an AIFF file from an Apple Lossless File?

Paste the email address into any text field and drag it to the desktop.
(52616)

How does iTunes use or access existing files?

how does iTunes use or access existing files? My existing windows music folder is about 2GB in size. When moving to iTunes, will iTunes just access those existing files or will it make an actual copy of all the songs? Thanks!

http://support.apple.com/kb/HT1549?viewlocale=en_US

How does one remove temporary files from Safari? A friend logged on to her Facebook account using my iMac. Now I can't remove her e-mail address from Facebook. It was suggested to me that I try clearing temporary files from Safari but I can't find

How does one remove temporary files from Safari? A friend logged on to her Facebook account using my iMac running Mac OSX 10.7.5 and Safari 6.1.6. Now I can't remove her e-mail address from my computer. When I open Facebook her address shows in the user button. I do not have a Facebook account. It was suggested to me that I try clearing temporary files from Safari but I can't find anything that tells me how to do this. Are temporary files the same as the cache? It also was suggested that I try clearing Safari cache. How do I do that?

Check Safari/Preferences/Passwords to see if the Facebook account is there. If so, select it and remove it. If you are still having problems, Safari/Preferences/Advanced - enable the Develop menu, then go there and Empty Caches. Quit/reopen Safari and test. If that doesn't work, Safari/Reset Safari.

How does Airplay transfer audio file format to an Airport Express?

Hi, everyone
How does Airplay transfer audio file format to an Airport Express?
Many from the Internet claim that iTunes encodes an AIFF file format into an Apple Lossless Audio Codec (ALAC) file format before sending signal to an Airport Express.
Is that true?
If so, would it still make sense for me to have AIFF files on my music server
or should I have ALAC files instead?
Please advise.
Thank you.
BR,
George Lien

Many from the Internet claim that iTunes encodes an AIFF file format into an Apple Lossless Audio Codec (ALAC) file format before sending signal to an Airport Express.
Is that true?
Yes. The AirPort Express Base Station (AX) works only with iTunes v4.6+ and is limited to music files that iTunes can read; ie, 16-bit data only. These data, though, can be in any file format that iTunes recognizes, from lossy MP3s at the low-quality end of the spectrum to Apple Lossless and lossless AIFF or WAV files at the high end. It is also important to note that the AX functions only at a 44.1kHz sample rate. When you play 32kHz or 48kHz data, iTunes sample-rate-converts the data in real time before sending it to the AX.
iTunes uses a QuickTime CODEC to convert audio files to Apple Lossless, and then, uses AirPlay to send them to the AX. In turn, the AX uses built-in software that converts the Apple Lossless to an Encoded Digital Audio format. From there, digital audio is sent to a optical transceiver to convert the electrical signal to an optical one before sending it to the innermost part of the audio port. For analog, the AX has a built-in DAC to convert the Encoded Digital Audio to Analog which is sent to the same audio port.
If so, would it still make sense for me to have AIFF files on my music server
or should I have ALAC files instead?
If you have audio files in both formats, I would elect just to keep the ALAC (.m4a) files on the music server.

How Does EJB 2.0 Specification Change the BC4J?

Hi,
I had read the while paper of BC4J thoroughly. The following statement interested me:
"As Oracle9iAS, WebLogic, and other J2EE application server vendors begin to rollout complete support for the new EJB 2.0 specification in the first half of 2002, a new release of the BC4J framework will be released which includes support for the new local entity beans. This work entails enhancing our lightweight, local entity classes to support the necessary interface to be lightweight EJB 2.0 Local Entity Beans. ...."
I have searched all the documents about BC4J, but I couldn't find anything more about "How Does EJB 2.0 Specification Change the BC4J?"
I think the "Local EJB Entity Beans" is similar with BC4J DAO. So is there someone who can tell me how does EJB 2.0 Specification change the BC4J?
Any help would be appreciated!
James

We support using local CMP entity beans as your persistence layer for your entity objects, but as it adds an extra layer, it's turned out (in all honesty) to not be that popular a feature.
The performance offered by the simpler BC4J entity object (plain old java class) is fine, and the notion of using simple java beans for your model is widely recognized as a fine option for J2EE applications.
For example, check out Rod Johnson's book called "Expert one-to-one: J2EE Design and Development" which covers this subject excellently.

How does iTunes detect move format when purchase

Doh... I asked previously a question and cant find how to locate the inital request out the the 10's of thousands... So i'll ask again... Sorry.
How does iTunes determine if your system can handle HD movies when purchasing? I ask because I have a highend workstation with high end Quadro 2x dual DVI card with matching high resolution monitors (Dell 3007's). Itunes prevents me from purchasing/downloading HD movies. If however I purchase them on my other system (mulitmedia laptop) i can play them on my workstation. Bit of a pain to be purchasing on one system only to play on another... Solution will be to put HD's on NAS.
Any suggestions?
JP

iTunes is aware of the serial number of each iPhone. The backups stored in the iTunes area contain serial number information.
You can change the name of her iPhone several ways. One is on her iPhone in Settings > General > About > Name.
You say "... the receiving end sees my name on their display." That is because you are listed as the financially responsible party - the bill payer. Her name would be seen, for example, if she calls another iPhone and the call recipient has her set up as a separate contact from you with just her telephone number.
If you want her name to show up on her phone, in general, perhaps your cellular carrier can do that.

How does iTunes ID music exactly?

Let's say I download an MP3 (with permission from the copyright owner, of course) which is named to reflect artist, song, album and track, but doesn't contain any MP3 ID tags. Does iTunes attempt to guess the name of song album and artist from the file name? If so, does it attempt to write containing folders and ID tags to correspond?
What about the opposite case? The MP3 has an uninformative name, but good ID tags. Does iTunes rename the file -- and the folders it is nested in -- to reflect the ID tags?
Finally, let's say I edit information about a song already in iTunes. I correct song, album name, artist, track number, or whatever. When I do this, does iTunes change the name of the file, the name of the containing folders, the ID tags, or all of the above?
Thanks in advance,
Tim

Let's say I download an MP3 (with permission from the
copyright owner, of course) which is named to reflect
artist, song, album and track, but doesn't contain
any MP3 ID tags. Does iTunes attempt to guess the
name of song album and artist from the file name? If
so, does it attempt to write containing folders and
ID tags to correspond?
iTunes uses the mp3 tags exclusively. If the track you downloaded (and yes, I have downloaded lots of legal tracks, often from record label sites) that have file names with all the info but no tag info. iTunes will list it as Track 1 (or some such). It's a real pain. It does no guessing.
What about the opposite case? The MP3 has an
uninformative name, but good ID tags. Does iTunes
rename the file -- and the folders it is nested in --
to reflect the ID tags?
iTunes couldn't care less about the file name. See above.
Finally, let's say I edit information about a song
already in iTunes. I correct song, album name,
artist, track number, or whatever. When I do this,
does iTunes change the name of the file, the name of
the containing folders, the ID tags, or all of the
above?
I don't know if iTunes changes the file name. However, if you have iTunes set to keep your library organized, it may move the file to the appropriate folder (from Unknown Artist to Artist XXX). If you don't have iTunes organzing your library, changing the tags won't affect were the file is stored.
Meg

How does APEX check for null values in Text Fields on the forms?

Hello all,
How does APEX check for null values in Text Fields on the forms? This might sound trivial but I have a problem with a PL/SQL Validation that I have written.
I have one select list (P108_CLUSTER_ID) and one Text field (P108_PRIVATE_IP). I made P108_CLUSTER_ID to return null value when nothing is selected and assumed P108_PRIVATE_IP to return null value too when nothign is entered in the text field.
All that I need is to validate if P108_PRIVATE_IP is entered when a P108_CLUSTER_ID is selected. i.e it is mandatory to enter Private IP when a cluster is seelcted and following is my Pl/SQL code
Declare
v_valid boolean;
Begin
IF :P108_CLUSTER_ID is NULL and :P108_PRIVATE_IP is NULL THEN
v_valid := TRUE;
ELSIF :P108_CLUSTER_ID is NOT NULL and :P108_PRIVATE_IP is NOT NULL THEN
v_valid := TRUE;
ELSIF :P108_CLUSTER_ID is NOT NULL and :P108_PRIVATE_IP is NULL THEN
v_valid := FALSE;
ELSIF :P108_CLUSTER_ID is NULL and :P108_PRIVATE_IP is NOT NULL THEN
v_valid := FALSE;
END IF;
return v_valid;
END;
My problem is it is returning FALSE for all the cases.It works fine in SQL Command though..When I tried to Debug and use Firebug, I found that Text fields are not stored a null by default but as empty strings "" . Now I tried modifying my PL/SQL to check Private_IP against an empty string. But doesn't help. Can someone please tell me how I need to proceed.
Thanks

See SQL report for LIKE SEARCH I have just explained how Select list return value works..
Cheers,
Hari

How does DIADEM import TDMS files? How gets every channel his number and groupindex? How can I determine which channel has which groupindex and number?

I store different channels in a TDMS file.
I like to have a time channel at the first position with group index 1 and number 1.
When I read the TDMS file with DIADEM the time channel (Float64) is on a differernt position, and the channels are not sorted alphabetically.
Here are my questions:
How does DIADEM import TDMS files?
How gets every channel his number and groupindex?
How can I determine which channel has which groupindex and number?
Best regards
Joerg

Hi Jörg,
i suppose that you´re programme whose create the *.tdms file is writing on false position. Try to create datas with timechannel on first indes in diadem, then save it and then open it again. you see that all is correct. So please tell me what programm in what version do you use and please attache it here.
Did you use the library for creating *.tdms files like in the link ?
http://zone.ni.com/devzone/cda/tut/p/id/6471
Here you find the gtdms_8.x.zip - when you extract it and opened the *.llb you find vi´s for all functions e.g. writing 2d array of strings to *.tdms file
when you open the subvi´s then you see how created and writing datas/structure to *.tdms files. Because *.tdms is binary you can´t see structure with open it in editor.
When you don´t have Labview you can use the 30 days test of current version 8.5 under following link
german version download link
https://lumen.ni.com/nicif/d/lveval/content.xhtml
english version download link
https://lumen.ni.com/nicif/us/lveval/content.xhtml
Hope it helps
Best Regards

How does iTunes prioritize loading to iPod when more than 5 accounts?

Unfortunately, my absent minded son has opened up multiple accounts (4 as a matter of fact) when he has received iTunes cards, not knowing (until now) that his ipod will only take 5 accounts max. Given that his two sisters and I also have accounts, we have 7 on the same library. He does not sync the whole library and we have gone through his playlists to exclude his sisters' songs (which is an ordeal all on its own). I then reset his ipod and synced his playlist first, so that his four accounts and mine would be the ones which were loaded onto his ipod. This seemed to work until we included "music videos", which included some of his sisters' videos. I had assumed that they would not be loaded because the 5 accounts had been filled, but they did and the songs from his two most recent accounts were "de-synced". How does iTunes prioritize the 5 accounts and how can I make sure the 5 that we want are the ones loaded? Thanks in advance,
Kevin

i know you can only register 5 computers to use ipod
This is incorrect.
You can authorize a max of 5 computers to play your iTunes purchases.
how do i get rid of the accounts registered to my ipod
Accounts are not registered to an iPod.
Tp play songs in iTunes, you need to authorize teh computer. To authorize teh computer, play a purchased song. It will tell you that you need to authorize the computer by inputting your username and password.

How does Avilability check and TOR takes place in SD

How does Avilability check and TOR takes place in SD? if you have any Tax configuration notes please send it to my mail ID?
[email protected]
Gopal

ATP
Types of Availability Check in Sales and Distribution
Processing
There are three types of availability check:
_ Check on the basis of the ATP quantities
_ Check against product allocation
_ Check against planning
The following SD-specific control features need to be maintained in Customizing:
_ Checking group
The checking group controls whether the system is to create individual or collective
requirements in sales and shipping processing. In addition, a material block for the
availability check with transfer of requirements can be set here. The checking group can
also be used to deactivate the availability check. This option was created especially for
the assembly order so that when the bill of material is exploded in the assembly order,
the individual components, if necessary, can be classified as non-critical parts as far as
procurement is concerned.
The checking group specifies in combination with the checking rule the scope of the
availability check. It is proposed in the material master record on the basis of the material
type and the plant, and copied into the sales and distribution documents.
_ Checking Rule
You use the checking rule to control the scope of the availability check for each
transaction in sales and distribution. You also specify whether the check should be
carried out including or excluding replenishment lead time. The individual checking rules
define by transaction, which stock and inward and outward movement of goods should
be taken into account for the availability check.
_ Schedule line category
You can control with the schedule line category whether an availability check and
transfer of requirements should be carried out in the sales documents. The possible
settings for this at schedule line level are dependent on the settings in the requirements
class which is determined from the requirements type of the material.
_ Delivery item category
The delivery item category can be used to control whether an availability check takes
place in deliveries.
Requirements type
The various requirements are identified by their requirements type. The requirements
type refers to the requirements class and its control features.
_ Requirements Class
The requirements class contains all control features for planning such as relevance for
planning, requirements planning strategy and requirements consumption strategy. In
addition, it is specified at a global level whether an availability check is to take place for
the material in the sales and distribution documents on the basis of the ATP quantity
(ATP = available to promise) and whether requirements are to be passed on. A finer
degree of control can be obtained for sales documents using the schedule line category.
Replenishment lead time is only included in the check performed on the basis of the
ATP quantity.
Prerequisites
An availability check can only be carried out if the following prerequisites have been fulfilled:
_ The control elements described above for the availability check must be maintained in
Customizing for Sales and the relevant assignments made to the sales transactions
_ The availability check must be switched on at requirements class level and - for the
availability check in the sales documents - at schedule line category level
A requirements type must exist by which the requirements class can be found
_ A plant must be defined. It can either be proposed from the customer or material master
record or can be entered manually in the document.
_ A checking group must be defined in the material master record on the Sales/plant data
screen in the Availability check field
Configuring entries of the Availability Check
IMGSDBasic fncsAvailability check and TORAvailability checkAvailability check with ATP logic or against planningDefine checking groups
You can use SAP std checking groups of 01 for summarized reqts or 02 for daily reqts or u can create ur own.
The columns total sales and total deliveries are selection options whereby u can configure a checking rule to sum up reqts to post to MRP either individually or by day or week.
Column 5, Block qty; set this block if u want several users to be able to process the material simultaneously in different transactions without blocking each other. The No Check indicator is used when u want a material to not be relevant for an ATP check.
Defining a material block for other users. The Block checkbox is an indicator that enables u to block the particular material from being checked for availability if it is already being checked at the same time by another user.
Defining the default value for checking groups. However should no entry exist for the checking group in the material master record, one can set a default value per material type and plant.
Controlling the availability check. In this section, u tell the system what stock on hand and what inward and outward movements of stock it must take into account when performing the availability check. These settings are based on the checking group that is assigned to the material master record and the checking rule that is predefined and assigned to the sd transaction. The carry out control for the availability check must be maintained for both the sales order and delivery.
TOR
IMG  SD  Basic fncs  Availability check and TOR  TOR
A line item in the sales order creates a schedule line. The schedule lines in the sales order transfer the requirements through to MRP. You can select the docs on which you want the TOR to happen. For ex, not for quotations.
The TOR aims to ensure the ordered materials are available for the requested delivery date. The TOR can be set for individual or for collective requirements (materials mastersales/plant view).
The TOR is dependent on the following data:
The reqts type, reqts class, checking group and schedule line category.
The reqts type and class are determined in the strategy group (material masterMRP3)
For TOR to be carried out, a few criteria need to be met:
Plant assigned to line item level, schedule line category should be switched on at TOR, TOR must be switched on at the reqts class level, checking group must be defined and allocated to the material master record (sales/plant view in the availability check field)
The reqts class is the controlling factor for the availability check and the TOR for all sd types.
Configuring the TOR:
1) Use std 041 reqts class or copy and rename it. Use the indicators to select if this reqts class must carry out an availability check and/or a TOR.
2) Define the reqts types. A reqts type is allocated to a single reqts class and not vice versa. It is based on the item category and the MRP type of the material.
3) Assign the rqts type to the relevant item category in the sales order and the MRP type found on the material master record.
You can select an alternative search strategy where u assign the reqts type to item category and MRP type. Can select source as 0, 1 or 2. (1 = Item type and MRP type strategy).
4) The TOR and Availability check can be selected/de-selected at the schedule line category level.
5) Block qty confirmation in delivery blocks. This is used to block the reservation of the TOR from MRP.
6) Maintain requirements for TOR. Requirements can be used to determine that the TOR to MRP is not carried out unless a number of conditions are met.
Availability Overview = CO09  order qty, sd doc no, item no, requirements class.
Stock requirements list = MD04  sd no or dly no, line item, schedule line placing the demand
Stock overview = MMBE  total stock per company, then plant followed by storage location, and finally a breakdown per batch
this is the customising as weel as the knowledge part.
PLease award pints if helpful
thanks

What exactly are Upcoming Songs & how does iTunes determine them?

I've never really bothered with Party Shuffle before but it always bugged me when it gave the message about Upcoming Songs. I mean, what is an upcoming song? How does iTunes decide it's upcoming?
Regards,
spriter

Upcoming Songs are tracks in Party Shuffle that have not yet been played. You can set how many upcoming songs are visible, but this setting does not determine how many upcoming songs there are.
Party Shuffle is like selecting Shuffle for the Library or any playlist except that you can alter the results. You can add or delete tracks and you can manually reorder the upcoming tracks in Party Shuffle. You can also tell Party Shuffle to play higher rated songs more often.
Regular shuffle stops once every track in the playlist has been played, but Party Shuffle will continue playing, adding repeat tracks when needed.

Does itunes check for duplicate purchases?

I got a new version of itunes and I cannot have my purchased next to my new purchases. Does itunes check for duplicates? Or are they happy to take your money?

Maybe they will in a future update. Im not sure but I think they use to do this. IF they did Id say they stopped to make the record companys happy (And alittle richer)

How does iTunes check if files change?

Similar Messages

Maybe you are looking for