Hur gör ni som har 5.1 system? Jag har en gammal Panasonic hemmbio och kör den såhär:
HDMi från Switchen in i tven - optisk kabel från tven till Panasonic receivern.
Men hur jag än gör, provat ALLA inställningar så får jag inget ljud i bakre högtalarna när jag kör surroundtestet i Switchen.
Denna setup fungerar med alla andra enheter som mitt Ps3 och Apple tv för att få 5.1.
Min receiver är så gammal så den har bara hdmi out, scart och optisk in att välja på. Aux finns också.
Switchen stödjer inte bistream/komprimerat (dts/dolby...) bara ren okomprimerad PCM
1. Receivern behöver stödja PCM, kan tycka att den borde stödja det, kolla upp
2. Stor chans att TV/optisk passthrough för PCM enbart skickar vidare 2.1, kolla upp
Om du har lyckats så står det antagligen multi ch, PCM eller något liknande (dts, och dolby loggan kommer inte att dyka upp)
Är du säker på att din setup för PS3, Apple TV kör ut 5.1 och inte stereo , alternativt simulerad stereo surround ur alla högtalare?
mer info nedan
Bitstream
Bitstream audio is compressed, meaning information that is deemed less important to the sound is removed from the signal. This does reduce the quality somewhat, but it’s important to note that compressed audio still sounds very good – good enough that the average person is not going to hear much difference between it and uncompressed audio.
PCM
PCM is an uncompressed audio format, which means it will theoretically have the best overall sound quality, as no information has been removed to facilitate transmitting the signal. PCM is sent unencoded by the source, meaning the full, unpacked ‘instructions’ for what sounds to play are sent directly from the source to receiver, and then on to the speakers.
Unfortunately, this makes for a signal that is more difficult to transmit. No TV seems to be able to pass a 5.1 PCM signal through to a sound system, so sending a PCM signal to or from a TV will downgrade the signal to 2.1 (two speakers + one subwoofer), thus eliminating the extra channels necessary for surround sound.
PCM 5.1 can work with a receiver that supports the format, so if you want uncompressed sound, you’ll need to forego passing the audio through your TV, and instead output the sound directly from the source (one that outputs PCM 5.1) to the receiver. Note that only HDMI can transmit a 5.1 PCM signal. Digital optical is only capable of transmitting a 2.1 or 2.0 PCM signal.
