Topic Title: AMD HDMI Audio Driver Does Not Show/Handle Compressed Audio Formats for Passthrough
Topic Summary: HIS H657HS2G Radeon HD 6570 HDMI Audio Passthrough Not Functioning
Created On: 11/26/2013 06:37 PM
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 11/26/2013 06:37 PM
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HalfBrickInASock
Peon

Posts: 1
Joined: 11/25/2013

AMD HDMI Audio Device does not list any compressed audio formats for passthrough (in sound config), though my receiver accepts them.  Attempting to play media that requires passthrough results in either:

1) no sound and very slow playback, or

2) downmuxing instead of passthrough

The switch and receiver function; the specific HDMI->Switch->Coax Audio->Receiver audio path works with Dolby Digital passthrough from PS3. Monitor Asset Manager reports that the HDMI is getting this report in regards to audio:

CE audio data (formats supported)

LPCM    2-channel, 16/20/24 bit depths at 32/44/48 kHz

LPCM    6-channel, 16/20/24 bit depths at 32/44/48 kHz

I don't know if compressed audio formats should be listed there.

Hardware:

HIS H657HS2G Radeon HD 6570 2GB 128-bit DDR3 PCI Express 2.1

HDMI Switch (outputs coax digital audio to receiver):

Generic 4x1 Switch w/ Audio Output

(Etekcity® 4 x 1 HDMI Switch Switcher Selector with audio output)

Receiver:

Old Logitech Speaker System [Z-5500].  Handles DTS/Dolby fine.

Display: Panasonic P55S60.

Drivers: Most recent stable (Catalyst 13.9)

OS: Windows 7 64-bit SP1, up to date.

[Other Hardware (Not Really Relevant):

Rosewill SL-300TFX 300W TFX12V Power Supply | Asus M4A88T-I Motherboard | AMD Athlon II X4 610E | CORSAIR 16GB (2 x 8G) 204-Pin DDR3 SO-DIMM DDR3 1333 Laptop Memory Model CMSO16GX3M2A1333C9 | SAMSUNG 830 Series MZ-7PC256D/AM 2.5" 256GB SATA III MLC | LG Black Super-Multi Combo Drive SATA Model CT21N - OEM]

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