- Apr 23, 2004
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This may sound off-forum for some but as there aren't any audio forums here in anandtech (What happened to the soundcard reviews we used to get?), and what I am about to say is quite technical. The e-mail I sent to AMD got escalated but it's been a week without reply.
Long story short, I was going to make my dream HTPC which also handles PC gaming, when I read that the AMD Radeon HD6xxx series supports bit streaming of Dolby TruHD / DTS-HD MA loseless surround sound, I jumped ship.
I've purchased an entry level Onkyo TX-SR308 with HDMI inputs but no analogue multichannel inputs. I was hoping I could hook up my PC with it through HDMI and have surround sound, without the need of special sound cards through my HD6950 GPU. I am disappointed.
It seems games nowadays use OpenAL to handle sound with new Windows audio subsystem implementation. Radeon doesn't seems to encode DTS/Dolby audio from games, nor there are any sound card in market, not even Asus Xsonar HDAV. Yes bit streaming from BluRay playback is supported, but I have a dedicated BluRay player already. All I wanted is surround sound from PC, gaming or say playing multichannel flac audio files, that I can hook onto my hometheater speakers with the Onkyo amp.
This is very frustrating. Anyone can offer insight on how I can proceed with minimum burden on my wallet? One can buy HDMI to analogue but I can absolutely not find any multichannel analogue to HDMI solutions. None of the soundcard for PCs I believe embrace HDMI fully as to either passes multichannel PCM audio and at the same time compatible with Windows implementation to make Windows aware this is indeed a multichannel sound card; or encode analogue channel to lossy Dolby/DTS 5.1, let alone loseless Dolby TruHD/DTS-HD. This to me is silly since it's much cheaper to make a sound card without DACs and just a FPGA to do the encoding direct from PCI-E or PCI while deceiving Windows to believe that it's a analogue audio card.
FYI, in Windows, one cannot specify the number of sound channels for SPDIF/HDMI interfaces listed in audio control panel, it's only possible for analogue connections. The moment the soundcard present itself as HDMI interface, say goodbye to multichannel audio for applications other than DVD/Bluray. It seems to only able to pass through but not perform encoding of Dolby/DTS stream. I am not sure who to blame for this PC audio mess.
Thanks very much
Long story short, I was going to make my dream HTPC which also handles PC gaming, when I read that the AMD Radeon HD6xxx series supports bit streaming of Dolby TruHD / DTS-HD MA loseless surround sound, I jumped ship.
I've purchased an entry level Onkyo TX-SR308 with HDMI inputs but no analogue multichannel inputs. I was hoping I could hook up my PC with it through HDMI and have surround sound, without the need of special sound cards through my HD6950 GPU. I am disappointed.
It seems games nowadays use OpenAL to handle sound with new Windows audio subsystem implementation. Radeon doesn't seems to encode DTS/Dolby audio from games, nor there are any sound card in market, not even Asus Xsonar HDAV. Yes bit streaming from BluRay playback is supported, but I have a dedicated BluRay player already. All I wanted is surround sound from PC, gaming or say playing multichannel flac audio files, that I can hook onto my hometheater speakers with the Onkyo amp.
This is very frustrating. Anyone can offer insight on how I can proceed with minimum burden on my wallet? One can buy HDMI to analogue but I can absolutely not find any multichannel analogue to HDMI solutions. None of the soundcard for PCs I believe embrace HDMI fully as to either passes multichannel PCM audio and at the same time compatible with Windows implementation to make Windows aware this is indeed a multichannel sound card; or encode analogue channel to lossy Dolby/DTS 5.1, let alone loseless Dolby TruHD/DTS-HD. This to me is silly since it's much cheaper to make a sound card without DACs and just a FPGA to do the encoding direct from PCI-E or PCI while deceiving Windows to believe that it's a analogue audio card.
FYI, in Windows, one cannot specify the number of sound channels for SPDIF/HDMI interfaces listed in audio control panel, it's only possible for analogue connections. The moment the soundcard present itself as HDMI interface, say goodbye to multichannel audio for applications other than DVD/Bluray. It seems to only able to pass through but not perform encoding of Dolby/DTS stream. I am not sure who to blame for this PC audio mess.
Thanks very much