2010-09-26, 18:27
I just realized something.... what if the problem is not AE/ALSA but my receiver?
Just because the card can output S32_LE PCM, doesn't mean my receiver can accept and process it properly... Crutchfield says it does.. Onkyo HT-R670 The manual confirm's Crutchfield's page.
But I don't fully trust that information considering manuals from foreign companies are rife with errors a lot of the time.
This guy over at Hydrogen audio has the HT-R670 hooked up to his PC via HDMI in Windows7 and he says it reports the maximum supported bit-depth as 24-bit.
So now it becomes a question of not only what can the card output, but what can the receiver accept, and is there a way to detect that? I'm certain that information is probably available via the edid, but tools like parse-edid tend to ignore the audio-format portions of the edid.
Just because the card can output S32_LE PCM, doesn't mean my receiver can accept and process it properly... Crutchfield says it does.. Onkyo HT-R670 The manual confirm's Crutchfield's page.
Quote:Supported Audio Formats:
• 2-channel linear PCM (16/20/24 bit/32–192 kHz)
• Multichannel linear PCM (7.1 ch, 32–192 kHz)
• Bitstream (DSD, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, DTS, DTS-HD High Resolution Audio,
DTS-HD Master Audio)
Your DVD player must be able to output these formats from its HDMI OUT.
But I don't fully trust that information considering manuals from foreign companies are rife with errors a lot of the time.
This guy over at Hydrogen audio has the HT-R670 hooked up to his PC via HDMI in Windows7 and he says it reports the maximum supported bit-depth as 24-bit.
So now it becomes a question of not only what can the card output, but what can the receiver accept, and is there a way to detect that? I'm certain that information is probably available via the edid, but tools like parse-edid tend to ignore the audio-format portions of the edid.