The reason i want to get away from sound cards and onto external dac is that i am having problems with the pc audio. I've searched around for months but cannot find anybody with a similar problem.
When i play a stereo file of low bitrate on the pc, about 140 kb/s the sound quality is okay, i can enjoy the music.
When i play a file with hd audio dtshdma or dolbytru the sound quality goes down considerably and sounds terrible compared to the stereo file.
With hd files the bass goes down by about 10db until i can barely hear it, the mids and high sound all wrong a piano does not sound like a piano the sound is thin and boring.
Intresting because the higher bitrate hd files should sound considerably better but i am getting the reverse effect.
I borrowed an asus stxII top end sound card and it was doing exactly the same thing. Have been fiddiling around with the settings but no change.
The only thing that comes close to an explanation is an article i found on protected audio pathways:
" Regarding soundcards in PC,s , the high res content from DTS MA and Dolby tru HD is always downconverted to 16 bit before digital to analog conversion.
There are no exceptions to this. It is a condition of the PAP ( protected audio path ) within PC's. "
" Without PAP, all audio must be downsampled (a.k.a. “bit crippled”) to 16-bit, 48kHz per the AACS specification. Unfortunately, there is no Protected Audio Path (PAP) on any computer right now, so all HD Audio is currently downsampled on a PC. "
Even taking this into account the hd files should sound better than the stereo but the hd sound is thin, washed out, boring.
I am doing something fundamentally wrong at a very basic level but cannot figure out what it is.
At the moment I have the asus H170I-PRO motherboard running windows 10 pro 64-bit, then asus stxII into the pci slot, then rca outs from stxII into 3 quad power amps to give 5.1 sound. Volume control is on the stxII.
Can you help, or do you have any pointers in the right direction.
Thanks