Dolby Digital or DTS 5.1 sound on ATV

Does anyone knows if ATV supports dolby digital or DTS (both at 5.1)? I'm thinking about placing all my DVD's on a external hard drive to be able to see the movies using the ATV, but in every blog/forum that I read, there isn't a direct answer do this question.
If it is possible what is the best way (format) to use? Some programs that perform this kind of operation they have the built in option "apple tv", but it doesn't say if it will play at 5.1. Can anyone help me?
Thanks a lot

dolby digital 5.1 is supported for video playback.
however, discussing the importing (or ripping) of DVDs is not permitted here i'm afraid.

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    Hi,
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    batfastad wrote:
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  • Give it to us straight creative, will we EVER see Dolby Digital or D

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    Nice.
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  • Digital Connections, SPDIF and Dolby Digital Info

    I have noticed that many people have problems using their digital connections, so I put together this info to try and explain the difference between digital and analogue, and how to use them.
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    3) Decode the AC3/DTS with software.If you have a soundcard that doesn't support Dolby Digital (like the SB Li've! 24-bit) and you don't have digital speakers, the only way for you to get surround sound in movies is to use software to decode the AC3/DTS. The free versions of DVD software you get with hardware often don't support this feature, you will most likely need a full version. First select 'Dolby Digital' or 'DTS' decoding in the DVD software audio options (you must select the right sound format for the movie you are watching). Then make sure that 'SPDIF Pass-through' in the soundcard options is off. As with method (2) you must connect your speakers with the 3 analogue cables, not optical/coax.
    PC GamesPC games usually use technologies like as EAX to create surround sound, not Dolby Digital. So even if your speaker system has a Dolby Digital decoder, it will be of no use when playing games. The EAX processing is done on the soundcard, and the 6-channel sound is output via the analogue (or digital DIN if available). So you still need analogue connections to your digital speakers for games, if you just use an optical/coax cable you will only get the front left/right sound.(N.B. X-Box games do support Dolby Digital, so if you connect your X-Box to your Dolby Digital receiver/speakers with the optical cable, you can get full surround sound.)
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    N.B. This digital socket on the Sound Blaster cards doubles as the digital coax output. If you don't have digital DIN, you can use a mono or stereo mini-jack > RCA converter to connect to the coax input on your speakers, as the front R/L or AC3/DTS signals are sent through the tip of the plug.
    More InfoCreative's Speaker Conectivity Guide: http://support.creative.com/kb/ShowA....aspx?sid=5035
    Dolby Surround info: http://www.dolby.com
    I hope that clarifies the issue .
    Message Edited by KokChoy-CL on 07-04-2008 :0 AM

    Digital Connections, SPDIF and Dolby Digital (german revision)
    Options
    03-08-2007 01:52 AM
    Digital Connections, SPDIF and Dolby Digital Info
    Übersetzung + Erweiterungen + Revision 03-08-07
    Der Digitale Anschluß
    Ich habe beobachtet, daß viele Leute Fragen zu den Sound-Anschlüssen haben, daher trage ich hier einige Infos zusammen und erkläre die Unterschiede in der Verwendung der digitalen und analogen Anschlüsse.
    Digitale Anschlüsse – S-PDIF & Toslink
    Am PC gibt es zwei häufig verwendete digitale Anschlußformate optisch (Toslink) und koaxial (S-PDIF).
    Im Prinzip erzielen beide Anschlüsse genau das gleiche Audio-Ergebnis.
    Der primäre Unterschied ist das Medium ( das Material ) durch das das Signal übertragen wird. ( Glasfaser oder Kupfer )
    !! Update !!
    Ein wichtiger Aspekt in der Auswahl von digital-optischen Anschlüssen erklärt sich durch das Vermeiden einer sogenannten „Brummschleife“, d.h. eine elektrisch leitende Verbindung zweier Geräte muß vermieden werden.
    ( mit Lichtwellenleiter - LWL- z.B. mit dem Anschluß-System Toslink )
    In der Elektrotechnik ( Niedervolttechnik ) wird oft der „Negative“ Pol der Spannungsversorgung über das elektrisch leitende Gehäuse ( die sogenannte Masse )geführt. Das spart einerseits einen weiteren Kabelweg ( also Kupfer ) ein und ergibt eine mehr oder weniger wirksame (Ab-) Schirmung. Diese Schirmung soll die elektronische Schaltung vor elektromagnetischen, hochfrequenten und niederfrequenten Störeinflüssen je nach Ausführung der Schirmung schützen.
    Üblicherweise besitzt jedes elektronische Gerät eine eigene Spannungsversorgung. Netzteile in elektronischen Geräten unterscheiden sich in der Art der Spannungsumformung, in der Höhe der Spannung, in der zur Verfügung gestellten Leistung, durch verschiedene Bauarten und unterschiedliche Bauteil-Tolleranzen entstehen somit verschiedenste Masse-Potentiale.
    Werden solche Geräte durch elektrisch leitende Kabel verbunden, kommt es zu einem Ausgleich der verschiedenen Masse-Potentiale. Ein negatives Ergebnis der Verbindung von TV-Geräten oder PC-Komponenten mit Audio-Komponenten ist oft eine hörbare Beeinträchtigung von Audio-Signalen - ein tieffrequentes Brummen.( auch Brummschleife oder Masseschleife genannt )
    Hierfür verantwortlich zu machen ist eine elektrisch leitende Verbindung. In der HiFi-Technik ist das in der Regel ein Koaxialkabel und dessen Schirmung.
    Vermeidung u. Reduzierung dieser Störgeräusche Ansätze
    !! Der einfache Weg !!
    Einsatz einer optischen Signal- / Datenübertragung mit Lichtwellenleiter
    - Glasfaser als Trägermaterial
    ( Einsatz einer Datenübertragung ohne elektrisch leitende Verbindungen )
    aufwendige Wege
    Einsatz einer Galvanischen Trennung - mit einem Ground-Isolator
    (Massetrennung )
    + die elektrische Verbindung der Schirmung wird umgangen
    - aber Leistungs- & und Klangverlust(geringere Dynamik)
    - Verwendung von ( hochwertigen ) symmetrischen Verbindungen
    ( „PLUS“ „MINUS“ „Masse“)
    + Trennung der Schirmung an einer „Seite“ des Kabels möglich
    [bei Koaxialkabel unsinnig weil eine Ader zerstört wird und
    anschließend dieses Kabel wertlos ist ]
    - sehr große Anschlüsse
    - Profibereich
    - Einsatz einer zentralen Spannungsversorgung für alle miteinander
    verbundenen Geräte
    Nachtrag
    Bitte nicht verwechseln mit Netzbrummen - die Einstreuung der Netzfrequenz 50 Hz ( EU ) oder 60 Hz ( US ) in den Audio-Signalweg das ist üblicherweise auf eine nicht ausreichende Entstörung oder(Ab-)Schirmung zurückzuführen ist.
    - End - !! Update !!
    Einige Vorbetrachtungen
    Die traditionelle Ton-Übertragung ist ein unkomprimiertes Signal, es wird in Stereo übertragen.
    Wenn du CMSS ( Creative Multi Speaker Surround simulierten Surround Sound ) aus deiner Stereo-Musik erzeugen willst oder der Sprach-Test abgerufen wird ( nur über den Center ) ist der digitale Anschluß ( optisch & koaxial ) unbrauchbar, denn es würden nur die Lautsprecher Front-Rechts und Front-Links angesprochen !! Es wird ein anderer Anschluß benötigt, der die Kanäle einzeln ansteuert.
    Für das Format 5.1 ist das die Verbindung über die drei 3,5 mm Klinken-Stecker ( 3 mal 2 Kanäle ) mit der folgenden
    Kanalzuweisung 5.1
    Front R / Front L + Rear R + Rear L + Subwoofer / Center
    Mehrkanalton in Filmen - DolbyDigital (AC3 / DD) oder DTS
    Filme auf DVD verwenden häufig ein kodiertes Mehrkanal-Audiosignal, in der Form DolbyDigital ( AC3 / DD ) oder DTS. Bei dem gebräuchlichsten Format 5.1 werden 6 Signale ( 3 mal 2 Kanäle ) in einem digitalen Datenstrom zusammengefaßt und komprimiert = das Kodieren.
    Nach der Übertragung des Signals muß aus diesem Datenstrom ein Decoder die entsprechenden Töne trennen und jedem Kanal zuordnen = das Dekodieren.
    Drei Varianten der Decodierung sind möglich.
    (1) - AC3 / DTS Signal wird zu einem externen Decoder geführt
    Genau hier wird der optische / koaxiale Anschluß genutzt. Um diese Variante nutzen zu können, mußt du ein digitales Lautsprecher-Set oder einen Digital-Decoder ( z.B: Digital-Receiver ) besitzen, der die Dekodierung des gewünschten Formats ( DD, AC3, DTS) übernimmt. Für jedes Digital-Format benötigt man einen entsprechenden Decoder – das Handbuch weiß hier oft mehr – welches Format von welchem Gerät dekodiert werden kann !!
    Wähle in deiner DVD-Software den zur digitalen Datenübertragung gewünschten Anschluß "S-PDIF"( Koaxial ) oder "Optisch" als Audio-Ausgang.
    In den Soundkarten-Einstellungen muß die Option "S-PDIF-Durchschleifen" ( "SPDIF Pass-through" ) eingestellt werden.
    Dadurch wird das Audio-Signal von der DVD in digitaler ( komprimierter ) Form direkt an die Digital-Ausgänge der Soundkarte weitergeleitet. Anschließend kann ein angeschlossener externer Decoder z.B. im digitalen Lautsprecher-System oder im Digital-Receiver die Decodierung übernehmen und es entsteht ein „Räumliches Klangbild“.
    Bitte merken:
    Daß ist der einzige Weg 5.1 Signale ( digital ) über ein koaxiales bzw. optisches Kabel zu übertragen.
    (2) - AC3 / DTS mit der Soundkarte decodieren
    Diese Variante ist zu verwenden, wenn du keinen externen Decoder / Receiver verwenden willst.
    In der DVD-Software wird "S-PDIF" als Audio-Ausgang gewählt und es muß zwingend in den Optionen der Soundkarte "S-PDIF-Durchschleifen" ( "SPDIF Pass-through" ) deaktiviert werden.
    Die DVD-Software wird jetzt das ( digitale ) komprimierte Audio-Signal an deine Soundkarte senden und dann werden dort die digitalen Daten decodiert. Die Soundkarte gibt dann die 6 Audio-Kanäle ( bei 5.1 ) über ihre drei analogen Anschlüsse aus ( 3 mal 3,5 mm Klinke ) mit folgender
    Kanalzuweisung 5.1
    Front R / Front L + Rear R + Rear L + Subwoofer / Center
    Es wird in diesem Beispiel also ein 5.1-Lautsprecher-System benötigt, mit der analogen Anschluß-Option von drei Klinken-Steckern.
    ( also 3 x 2 Kanäle = 3 mal 3,5 mm Klinke )
    - die Einspeisung eines digitalen Signals über DigitalDIN, ist mit dem optionalen digitalen E/A-Modulbei möglich ***
    - wird hier ein optisches / koaxiales Kabel verwendest, hörst du nur schwache Töne der Front-Lautsprecher R + L
    *** Bei Karten der SB073X-Serie verfügt diese Buchse nicht über die Digital-In-Funktion !! zur Unterstützung des digitalen E/A-Moduls )
    [ mehr unten ]
    (3) - AC3 / DTS mit einer Software decodieren
    Wenn deine Soundkarte kein DolbyDigital unterstützt
    ( wie die SB Live! 24-bit ) und auch kein digitales Lautsprecher-System vorhanden ist, kannst du Raumklang
    (Surrsound-Sound ) aus DV-Filmen auch über eine AC3 / DTS fähige Software erzeugen.
    Gratis-DVD-Software-Versionen unterstützen diese Funktion häufig nicht, du benötigst dann eine Software-Voll-Version.
    Wähle die gewünschte digitale Audio-Tonspur „DolbyDigital“ oder „DTS“, im Audio-Menü einer DVD.
    Dann stelle sicher, das in den Soundkarten-Optionen "S-PDIF-Durchschleifen"
    ( "SPDIF Pass-through" ) ausgeschaltet ist.
    Wie unter (2) mußt du deine Lautsprecher mit den drei analogen Kabeln anschließen und nicht optisch oder koaxial !! ( 3 mal 3,5 Klinke )
    Kanalzuweisung 5.1
    Front R / Front L + Rear R + Rear L + Subwoofer / Center
    Generell sind bei zuvor genannten Varianten (1) – (3) auch andere mehrkanalige
    Wiedergabeformate möglich.
    In Abhängigkeit von der Ausstattung der Quelle also von der DVD. der CD. der TV-Karte, dem Game usw. sind andere Formate z.B. 2.0 / 2.1 / 4.0 / 4.1 / 5.1 / 7.1-Kanal Wiedergabe möglich.
    PC Spiele
    PC Spiele nutzen normalerweise Technologien wie EAX, die ihren eigenen Surround-Sound, ohne Verwendung von DolbyDigital erzeugen. Selbst wenn dein Lautsprecher-System einen DolbyDigital-Decoder besitzt, ist dieser für Games unbrauchbar. Denn die EAX Verarbeitung findet direkt auf der Soundkarte statt und die Ausgabe der 6 Kanäle ( 5.1 ) erfolgt über die analogen Ausgänge
    ( 3 mal 3,5 mm Klinke ) ( oder über DigitalDIN, wenn vorhanden *** ).
    *** Bei Karten der SB073X-Serie verfügt diese Buchse nicht über die Digital-In-Funktion !! zur Unterstützung des digitalen E/A-Moduls ) [ mehr unten ]
    Kanalzuweisung 5.1
    Front R / Front L + Rear R + Rear L + Subwoofer / Center
    Für Mehrkanalwiedergabe in Spielen benötigst du also Lautsprecher-Systeme mit analogen Anschlüssen oder einen Digital-Receiver mit analogem ( 5.1 ) Eingang.
    Wenn du ein optisches / koaxiales Kabel verwendest, dann kannst du nur die vorderen Kanäle ( links / rechts ) hören.
    !!! Notiz !!!
    X-Box Spiele unterstützen DolbyDigital, wenn du deine X-Box mit einem DolbyDigital-Receiver oder einem digitalen Lautsprecher-System über optische Kabel verbindest, kannst du den vollen Surround Sound nutzen.
    Die Sound Blaster Karten der SB073X-Serie bieten neben dem digitalen ( koaxial / extern ) Anschluß über den Anschluss Flexi-Jack auch noch einen weiteren Anschluß, direkt auf der Karte ( koaxial / intern )
    Flexi-Jack - DigitalDIN
    Wenn du kein digitales E/A-Modul ( Digital I/O-Modul ) benutzen kannst, ist es möglich mit einem Klinke-Chinch Adapter ( RCA-Adapter ), ein digitales Lautsprecher-System oder einen Digital-Receiver digital ( koaxial ) über den Flexi-Jack-Ausgang der Soundkarte zu verbinden. Alle MiniDin bzw. 3,5 mm Klinken-Stecker können in der Mono- oder auch in der Stereo-Ausführung verwendet werden, denn der mittlere / vordere Pin des 3,5 mm Klinken-Steckers überträgt das AC3 / DTS Signal. Dazu benötigt man eine der folgenden Verbindungen
    3,5 mm Klinke ( Mini DIN ) auf Chinch - Adapter ( RCA-Adapter )
    für den S-PDIF-Anschluß( koaxial ) an Lautsprecher-Systeme mit digitalem Eingang bzw. Digital-Receiver kann man folgende Varianten verwenden
    - Klinke-Mono - Chinch-Stecker ( Stecker –Stecker ) ( Favorit !! )
    - Klinke-Mono auf Chinch-Mono ( Stecker - Kupplung ) + Chinch-Verbindungkabel
    ( Stecker - Stecker )
    - Klinke-Stereo auf Chinch-Mono ( Stecker - Kupplung ) + Chinch-Verbindungkabel
    ( Stecker - Stecker )
    Das digitale E/A-Modul ( Digital I/O – Modul )
    Die Verwendung von optionalem Zubehör Digitales E/A-Modul ( Digital I/O-Modul ) bietet die Möglichkeit der direkten Verwendung eines S-PDIF Verbindungskabels und stellt zusätzlich zum koaxialen Anschluß einen optischen Anschluß ( Toslink ) bereit. Die optische Verbindung kann wie oben beschrieben zur Vermeidung einer Brummschleife hilfreich sein.
    Des weiteren wird ( abhängig von der Ausstattung der Soundkarte *** ) ein digitaler Eingang über das E/A-Modul bereitgestellt, der Eingang ist ebenso wie der Ausgang in optischer ( Toslink ) und koaxialer ( S-PDIF ) Bauform ausgeführt.
    Achtung !!
    ( *** Bei Karten der SB073X-Serie verfügt diese Buchse nicht über die Digital-In-Funktion !! zur Unterstützung des digitalen E/A-Moduls )
    interner S-PDIF E/A-Anschluss ( für Geräte der SB073X-Serie )
    zum Anschluß einer Decoderkarte oder externer Decoder bzw. Lautsprechersysteme mit digitalem Eingang ist ein entsprechender Adapter erforderlich
    Bei einigen Modellen ist eine Dekoderkarte im Lieferumfang enthalten bzw. in einigen Regionen als Zubehör erhältlich
    Front Panel-Sockel (für Geräte der SB073X-Serie)
    2 x 5-poliger Front Panel-Sockel nur für Verbindungen mit einem Intel HD Front Panel Audio-Standardsockel (nur Geräte der SB073X-Serie) Intel Front Panel Audio-Kabels (separat erhältlich)
    Anschlusskompatibilität
    Ausschließlich Intel HD Front Panel Audio-Standard
    Nicht kompatibel mit AC97 oder Intel-kompatiblem HD Front Panel Audio
    Einschränkungen
    Wenn neben den hinteren Mikrofonen auch Frontmikrofone angeschlossen sind, werden die hinteren Mikrofone automatisch deaktiviert.
    Sound Blaster X-Fi E/A-Konsole
    Auf der Rückseite Ihrer X-Fi-E/A-Konsole* befindet sich eine sogenannte DIN-Buchse. Um die Funktionen für eine integrierte Lautsprechersteuerung zu nutzen, können Sie an diese Buchse ausgewählte analoge Creative-Lautsprechersysteme anschließen, die über eine Kabelfernbedienung oder eine Audiokonsole verfügen.
    So können Sie beispielsweise über den Master-Lautstärkeregler Ihrer X-Fi-E/A-Konsole die Lautstärke der Lautsprecher regeln oder die Lautsprecher stummschalten.
    -eof-

  • I dont understand what the ddts100 is for? I just want dolby digital in games and movies

    I have the xfi music and plan on getting the 5. pro gamer speakers. isnt that all I need to watch movies and play games in dolby digital or dts on my pc? (free version of power dvd software) why would I need the ddts00? thanks in advance.

    exactly. But dolby digital is just a compression format just as your common mp3.
    So it doesn't means you won't be able to have surround sound.
    Dolby Digital sound output for PC games is just a flashy marketing feature which doesn't bring something best (it's even the contrary), except a one cable connection.

  • 5.1 Dolby Digital via optical cable in Mac Pro?

    Hello!
    I'm planning to get a new Mac Pro and I wanted to know if a Dolby Digital or DTS encoder is included to have 5.1 output with the optical TosLink cables.
    I need this to connect the Mac with my 5.1 surround sound system because I wanted to watch DVDs using it.
    If it only supports stereo sound in the standard version, do you have any recommendations to expand it to get the described feature?
    Thanks for answers.

    Hook up the toslink, set the output to digital in System Preferences>Sound, set the input on your 5.1 receiver and match the surround sound format in both the DVD movie sound prefs and the receiver.
    That's it.
    Remember to set the speakers in the correct positions from your sitting point or it won't work very well.
    To test the surround sound I suggest the movie Castaway, where Tom Hanks is picking up Fedex boxes from the surf line. You'll hear the waves crash on the left, Tom walking towards you and coconuts falling on the right.
    The toslink and a good receiver also makes your rips and iTMS songs sound great too.
    Check out the Volume Logic iTunes plug-in as well, really makes the music sound great.
    (no comp)

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