When should I use "Optical Audio"?

Hello,
I have the new (3rd Gen) Apple TV connected wirelessly to my home theater and HDTV. I have the HDMI cable connected to my surround-sound receiver. I was under the impression that the HDMI cable carries both sound AND audio. If this is the case, I'm trying to figure out what the Optical Audio input is for? I went ahead and purchased an Optical Audio cable and connected it to my surround sound receiver.
My question is this: Do I need to have that Optical Audio cable connected, or should I disconnect it and just use the HDMI connection? I looked in the AppleTV manual and it does not describe why you would connect this, and I'm scratching my head trying to understand this.
Thanks much!

Some old receivers didn't handle digital audio over HDMI very well - the only reason I can think of using the port.
If it worked without the optical before, you don't need it now!

Similar Messages

  • In Garageband, why won't the Roland HD3 V-Drums hi-hat trigger any midi at all? (It works when it's used as audio)

    My drummer bought the Roland HD3 V-Drums recently, and I bought a Mac Mini (to record on Garageband).
    When we record as audio from the V-Drums (using an audio interface) everything seems to work fine - but (of course) we can't change the sounds etc as it isn't midi (and we want to use midi).
    When we record as midi from the V-Drums (using a midi to USB cable) there are two major problems. Firstly, the hi-hat doesn't pick up at all - despite the fact it works when it's used as audio. When the hi-hat is hit, it doesn’t trigger any midi at all. The second is that the drums occasionally trigger a double hit. This issue I can get over (though it is annoying and it shouldn't happen) as I can manually delete any extra hits.
    I wouldn't expect two expensive pieces of kit (Apple Mac and Roland V Drums) not to work perfectly on something so simple. Please can you advise me of how to resolve this?
    (For info, I've emailed Roland the same issue too.)
    Thanks.

    While connected to GarageBand hold down Variation and 7 on the HD-3 to reassign MIDI codes.  Garageband does not recognize the HH "edge" codes so I changed both of these (HH OPEN EDGE and HH CLOSE EDGE) to match the value for the "bow".  With the HH pedal down, hit the center of the HH pad, the screen should say HH CLOSE BOW.  Remember the code, then hit the edge of the HH pad.  The screen should say HH CLOSE EDGE.  Use the Up arrow button to set the value for the HH CLOSE BOW.  Repeat the same steps with the HH pedal up so HH OPEN EDGE uses the same code as HH OPEN BOW.  To reset any pad to factory value hold down up and down button at same time.   Hope this helps!

  • When should I use static variable and when should not? Java essential

    When should I use static variable and when should not? Java essential

    Static => same value for all instances of the class.
    Non-static => each instance can have its own value.
    Which you need in which circumstances is completely up to you.

  • J1INCHLN when should I use error control mode checkbox

    Hi Experts,
    I am using t-code J1INCHLN for creating remittance Challan.
    But in ECC6, EHP 5 there is new functionality added & no documentation available for same.
    There is one field with tick option called Error Control Mode.so when should i use this functionality.
    Can anyone help on this?
    Thanks and Regards,
    Sameer

    HI
    Please refer the note no :  1567443
    Manual Control in J1INCHLN to change currency key/doc type
    "After this, if you will run J1INCHLN, you will get a checkbox at the end
    with 'Error Control Mode' which will be selected by default. If you want
    to change document type, currency or rate during processing, you should
    uncheck it else it will take you to the last screen."
    I hope note is allready available in your system hence you are getting above cheeck box.
    If you want to change the document type and currency or rate during posting then you need use the check box.
    Regards
    Madhu M

  • Why or When should we use Execute Immediate in PLSQL??

    Hi Frnds,
    Long Ago i have received a interview question that ...
    How can U create a table in the PLSQL object(Function or procedure)?
    But the thing y should we use execute immediate?
    In which scenario we should we should use????????????
    Why or When should we use Execute Immediate in PLSQL????

    OR
    http://stackoverflow.com/questions/18375990/oracle-what-does-execute-immediate-means
    For DML you'd use it when running statements that you don't have available at compile time, e.g. if the column list is based on a selection from the user.
    In your case it's being used because DDL cannot be run as static SQL from within PL/SQL. Only certain query, DML and TCL commands are valid. Anything else has to be treated as dynamic.
    I'd say it's rare to need to use DDL from a PL/SQL block. TRUNCATE might be reasonable; if you find anything creating or dropping objects on the fly then that might be more of a concern as it can suggest a suboptimal data model.
    EXECUTE IMMEDIATE itself does not automatically commit; but if you execute DDL then that will behave the same as if you ran it outside PL/SQL, so it will commit in your case, yes.
    Incidentally, I'm not sure why your code is using an intermediate variable to hold the statement; that's useful if you want to display what it's going to run maybe, but you don't seem to be doing that. What you have could be done as:
    EXECUTE IMMEDIATE 'TRUNCATE TABLE BD_BIDS_EXT_DET';
    Thank you

  • When should you use dmg vs copy or duplicate

    When should you use dmg vs copy or duplicate

    Your answers are very helpful. They encourage me to ask the more complete and complicated question: we have a web site that was developed using iWeb several years ago. iWeb support was dropped by Apple some years ago and we moved the site to GoDaddy, but still using the iWeb software. Now we have only 1 computer which can continue to edit, add to and support our web site. Our aim is to copy as much of our material as we can so that when this computer finally dies we can salvage as much of our material as we can to resurrect our site once more. GoDaddy says they cannot help us.
    Here is my wife's web site:
    www.adajillschneider.com
    Thanks for all your time and help.
    Ron Schneider

  • When Should I use the Inner Classes ?

    When Should I use the Inner Classes ?
    What is the advantage(s) and the disadvantage(s) ?

    When I use innerclasses?
    1) Allmost allways when I need simple owner child behavior.
    2) When I need a behaviour, that is quite small, and used only once, I make it anonymous inner class. For example specialised streams and threads.
    3) Enumerations

  • When should a subclass have its own fields and when should it use its super

    When should a subclass have its own fields and when should it use its superclass' fields?
    Hi, thank you for reading this post!
    Let me use a specific example to ask my question.
    public class BankAccount {
         private double accountBalance;
         public double getBalance() {
              return this.accountBalance;
    public class SavingsAccount extends BankAccount {
         private double accountBalance;
         public double getBalance() {
              return this.accountBalance;
    }In the bank account example, both BankAccount and SavingsAccount will have a method getBalance(). Therefore, they
    both require a account balance field. My question is since getBalance() for both classes will perform the exact same
    operation, when should I omit declaring the getBalance() method and the accountBalance field in the subclass, and
    when should I include them?
    My own thought is when we never have to instantiate a superclass object (e.g. an abstract class), then we place
    common fields in the abstract superclass and have subclasses access these fields via protected getter/setters to
    access the superclass' fields. This is the principle of reuse.
    But when you do need to instantiate a superclass and the superclass does need to maintain its own fields, then
    I would need to duplicate the accountBalance field and getBalance() method in the subclass.
    Is my thinking correct or incorrect?
    Thank you in advance for your help!
    Eric
    Edited by: er**** on 22-Aug-2011 20:19

    er**** wrote:
    If SavingsAccount inherit BankAccount.getBalance()...getBalance() would return BankAccount's accountBalance. This is NOT the correct result we want.Actually, I think it's precisely what you want.
    We want getBalance() to return BankAccount's accountBalance when we use a BankAccount object, and SavingsAccount's accountBalance when we use a SavingsAccount object.I seriously doubt that. I think you're confusing a BankAccount with a Customer, who can have more than one account.
    In every system I've ever seen, a SavingsAccount IS-A BankAccount - that is to say, it's a genuine subtype. Now, it may well contain other fields ('interest'?) that a normal account wouldn't, but 'balance' ain't one of them.
    Winston

  • What are the mapfiles for and when should I use them?

    Hi,
    what are the map files for and why/when should I use them?
    /usr/lib/ld/map.noexstk
    usr/lib/ld/map.noexbss
    /usr/lib/ld/map.noexdata
    /usr/lib/ld/map.pagealign

    Hi, I'm sure you've read the comments, but for the benefit of those who haven't: /usr/lib/ld/map.noexstk # Linker mapfile to create a non-executable stack definition within an # executable. /usr/lib/ld/map.noexbss # Link-editor mapfile to create a non-executable bss segment definition # within an executable. /usr/lib/ld/map.noexdata # Link-editor mapfile to create a non-executable data segment definition # within an executable. These stop the various segments from being executable. Which could reduce the risk surface for exploiting security holes in an application. /usr/lib/ld/map.pagealign # Linker mapfile to create page-aligned data within an executable. Aligning the start of the data segment can reduce the number of TLB entries needed to map the data. So the smallest TLB page size is 8KB, then we have 64KB, then 4MB etc. If the data starts on a 4MB boundary then it can be mapped with 4MB pages, if not then it has to be mapped with 8KB pages until a 64KB boundary, then 64KB pages until we get to a 4MB boundary. You sometimes get a bit of performance from this, but you may also get performance stability from it. If the mapping is random sometimes it works well, sometimes it works less well. Regards, Darryl.

  • HT4571 When should I use data roaming?

    When should I use data roaming?

    When you are outside your carrier's network, you may be able to access the Internet using another wireless carrier, that's dataroaming.
    More info; http://support.apple.com/kb/HT1976

  • When should I use the power adapter?

    I just installed a wireless router. Should I use the power adapter when I'm not going to use the Macbook for several hours? Does the Macbook drain the battery when it is shut down or sleeping?

    When should I use the power adapter?
    Whenever you are near a power outlet. Not 100% of the time, of course (you have to flex the battery sometimes) but as often as possible.
    Should I use the power adapter when I'm not going to use the Macbook for several hours?
    If you are near an outlet, yes.
    Does the Macbook drain the battery when it is shut down or sleeping?
    When sleeping, it drains a negligible amount.
    Further reading:
    http://support.apple.com/kb/HT1446
    http://support.apple.com/kb/HT1490

  • When should I use validate(), reValidate, and inValidate()?

    When should I use validate(), reValidate, and inValidate()? Also, I would like some detailed differences on them.
    Virum

    Anyone?

  • What is the difference between saving to "Documents" and "Macintosh HD" and when should you use each one?*

    What is the difference between saving to "Documents" and "Macintosh HD" and when should you use each one?

    When you save to the folder with the little house icon, the file is placed at
    /Users/your_user_name/
    You would really have to go out of my way to save at:
    (the shortcut for the Boot Drive, regardless of its name).
    I am not sure how you decided that Time Machine is not saving your files. The default is for Time Machine to do incremental Backups of everything on all attached drives, except for certain temporary information in Cache files. If you have four Users, Time Machine will back them all up.
    Looking at the raw Time Machine backups will tell you very little, because it does lots of its work with Hard Links, and because it does incremental backups, so only files that changed since the last Backup are saved at thet cycle. The way to determine whether Time Machine is saving things is to display the window you care about in the Finder, then invoke the "Star wars"/ "Back, back, back in time" Interface.

  • When should one use final arguments?

    Hi all,
    When should one use final arguments?
    I have searched the forum for this, but couldnt find a precise answer. I am specifically looking for cases where they are:-
    1. the only way to acheive something
    OR
    2. the stylistic way to acheive something.
    Thanks,
    Binil

    My $0.02 - I don't think (practically) you ever need
    final method parameters (it's not like they prevent
    subclassing or anything). However, I think (stylistically)
    you should make method parameters final wherever you
    can - it makes the code a more explicit (the contract
    between the invoker and the invokee is clearer).
    I seem to recall something about JVMs being able to
    optimize methods with final parameters better too, but that might just be moonshine or more people would
    (probably) be going on about it.

  • DSL Crashes When Attempt to Use Video & Audio

    Hi Guys,
    I need a little help. I just bought my iSight and it works great. My problem is when I go to use in a video or audio conference mode, my DSL crashes after about 25 seconds into the iChat connection. I never get connected. I've had no problems whatsoever with the system until now. I'm using a Linksys WRT54G connected to my DSL modem and ethernetted to my iMac. It crashes this way - and it does it with my Powerbook when I attempt to connect wirelessly. Any thoughts? Both Linksys and SBC have proven to be no help.
    Thanks,
    GT

    thanks "EZ Jim Level 4", you're correct when you state that "easy" means different things to different people, but i don't think anyone would consider simply providing weblinks to webpages that offer little more than general troubleshooting ideas to be any kind of fix, "easy" or not. this is the typical arrogance that exists in today's tech industry. create a product and provide little meaningful support if it fails to perform even the most basic functions promised. can you imagine if the auto industry worked this way? pay for a new car and the first time you turn the key it doesn't start? yeah right. ONLY the computer industry gets away with this lunacy.
    but i digress. i am virtually certain that my iSight and iChat are working properly - at least in as much as they require no other equipment or software in order for them to work "properly".
    and the problem does NOT appear to reside with my router which has been, and continues, to work perfectly with my DSL modem and all other computers connected thereto provided, of course, i'm not trying to establish a video connection via my iSight/iChat.
    so that pretty much leaves the modem as the culprit. there must be some sort of software or settings conflict between my DSL modem and iSight and/or iChat (or both). i know this because my web connection crashes even when i'm connected directly to the modem (bypassing the router entirely). by the way, SBC has confirmed that i do NOT have any firewalls in place via my modem (so don't bother suggesting that firewalls may be the problem).
    unfortunately, SBC is completely unwilling to assist beyond making sure i that my modem provides me with an internet connection. since it does, and i only have problems when trying to use my iSight/iChat in conjunction with my internet connection, SBC will do nothing more for me - ESPECIALLY ONCE THEY LEARN THAT I'M USING A MAC.
    now considering that SBC is the largest DSL provider in the country, i gotta think that SOMEONE AT APPLE should be able to fix this. either that or they ain't gonna be selling too many more iSights. and providing weblinks to general troubleshooting webpages ain't gonna do it. SO SOMEONE PLEASE HELP.
    thanks.

Maybe you are looking for