2013-08-25, 03:34
I cannot seem to get windows 7 to allow 5.1 passthru on optical........ I have an old receiver that does not use hdmi, want at least 5.1. In win all it shows is 2 ch. Updated drivers etc cannot seem to get 5.1 anywhere.
? or just time for new receiver?
2013-08-26, 01:59
2ch uncompressed sound = 5.1 compressed (ac3, DTS etc) with optical. Not sure if windows will display optical as 2 or 5.1 channel. Do you get surround sound if you play a file with ac3 or DTS? There are test files you can get online.
2013-08-26, 07:08
Win only shows 2 channel no matter what I try. 5.1 thru optical has been around for like 10 years, win 7 doesn't support? seems pretty messed up.
2013-08-26, 07:21
I think one of my Revos still has windows installed. I'll see what it supports on my system. DTS and AC3 sure work on linux (mythtv and xbmc both).
S/PDIF supports:
2 Channel LPCM (ie uncompressed)
5.1 channels compressed into DTS or AC3.
Of course drivers may be your issue. Linux has them built in, windows may need a download.
S/PDIF supports:
2 Channel LPCM (ie uncompressed)
5.1 channels compressed into DTS or AC3.
Of course drivers may be your issue. Linux has them built in, windows may need a download.
2013-08-26, 11:03
(2013-08-26, 07:08)timallen2k Wrote: Win only shows 2 channel no matter what I try. 5.1 thru optical has been around for like 10 years, win 7 doesn't support? seems pretty messed up.
Windows only reports the number of LPCM channels a device supports so 2 channels for SPDIF is entirely correct, you'll still get 5.1 for encoded formats for such as DD & DTS.
