ATI 45xx, Bit perfect, and Vista - AVS Forum
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post #1 of 18 Old 12-21-2008, 08:55 AM - Thread Starter
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Hi,

I'm now the happy owner of an ATI 4550. I have installed the Catalyst drivers (8.12, the latest I think), and the Realtek High Defitinion Audio Drivers (2.0.3).

I've managed, as well, to get DTS and AC3 trhough the HDMI to my receiver (a Marantz SR4001).

LPCM *seems* to be working as well (tried it with PowerDVD), although I'm not that sure. The receiver does show all the PCM channels being sent though.

Now, I'm trying to get bitperfect. I think I;ve managed to get PCM stereo to my receiver when using Foobar 2k and the WASAPI component (the Vista volume slider stops working), but when I try to play a DTS WAV file (ie, 44khz), all I get is noise (again, using Foobar and WASAPI).

I can see in the configuration of the HDMI device that it can output 48Khz and 44khz (as well as other formats), but I don't know if that's for real.

I would like this to work, as I have another audio board installed just to get this, and working fine (a Riviera with Cmedia drivers), but I'd like to have everything going through one cable, so that I don't have to switch between inputs (and I could use that audio board somewhere else!).

Did any of you managed to get bitperfect output with this ATI card?

Thanks,
-n.
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post #2 of 18 Old 12-21-2008, 09:45 AM
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Narwal,
I have the same issue with my ATI 4550. I can't get bitperfect playback (dts wav) through WASAPI with either foobar nor Jriver's MediaCenter13.

I also have an Auzentech Fusion sound card in my system, and through SPDIF out with that soundcard I get dts wav to play with both JRMC13 and foobar.

Below is the result of the testing I've done so far (HDMI = ATI4550, SPIDF = Auzen Fusion):

Code:
foobar2000 24bit output - HDMI 
2.0/44.1        - yes
2.0/96          - yes
2.0/192k        - no - "Unrecoverable playback error: Could not open device (8007000E)"
5.1dts          - no
5.1/24          - no - "Unrecoverable playback error: Could not open device (8007001F)"

foobar2000 16bit output - HDMI 
2.0/44.1        - yes
2.0/96          - yes
2.0/192k        - yes
5.1dts          - no
5.1/24          - no - "Unrecoverable playback error: Could not open device (8007001F)"

foobar2000 24bit output - SPDIF 
2.0/44.1        - yes
2.0/96          - yes
2.0/192k        - no (expected)- "Unrecoverable playback error: Could not open device:
 unsupported data format: 192000 Hz / 24-bit / 2 channels"
5.1dts          - yes
5.1/24          - no - (expected) "Unrecoverable playback error: Could not open device: 
unsupported data format: 96000 Hz / 24-bit / 6 channels"

foobar2000 16bit output - SPDIF 
2.0/44.1        - yes
2.0/96          - yes
2.0/192k        - no - (expected) "Unrecoverable playback error: Could not open device: 
unsupported data format: 192000 Hz / 16-bit / 2 channels"
5.1dts          - yes
5.1/24          - no - (expected) "Unrecoverable playback error: Could not open device: 
unsupported data format: 96000 Hz / 16-bit / 6 channels"

=============================================================================
MC13 - SPDIF
2.0/44.1        - yes
2.0/96          - yes
5.1/44.1        - yes, but only 2ch out
2.0/192k        - no - "Yellow triangle w/ !-sign"
5.1dts          - yes
5.1/24          - no - Yellow triangle w/ !-sign

MC13 - HDMI 
2.0/44.1        - yes
2.0/96          - Yellow triangle w/ !-sign
5.1/44.1        - yes, but only 2ch out
2.0/192k        - Yellow triangle w/ !-sign
5.1dts          - no - static
5.1/24          - no - Yellow triangle w/ !-sign
So although foobar can play a few more formats over the HDMI than JRMC13, given that the dts wav does not work, I don't trust that anything going over the HDMI is bitperfect.

BTW, the latest realtek driver for the ATI is 2.09: http://www.realtek.com.tw/downloads/...3&DownTypeID=3
/Anders
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post #3 of 18 Old 12-21-2008, 09:46 AM
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No problem here in playing a DTS wav file with foobar2000+HD 4550. I need to select "Stereo" in the speaker setup. Output format is irrelevant.
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post #4 of 18 Old 12-21-2008, 10:14 AM
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Quote:
Originally Posted by renethx View Post

No problem here in playing a DTS wav file with foobar2000+HD 4550. I need to select "Stereo" in the speaker setup. Output format is irrelevant.

Thanks Rene, that does indeed work - with both foobar and JRMC13!
No change with the high-resolution tracks though.
I agree that 16 or 24 shouldn't matter, but for my 2ch 24/192 track, setting foobar to 16 bit it works, while set to 24 bits it does not.

/Anders
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post #5 of 18 Old 12-21-2008, 09:15 PM
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Try 32bit. That may work. It will zero pad the 24bit.

Loving my Electric Bike!!
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post #6 of 18 Old 12-21-2008, 10:15 PM
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I tried with lowering the buffering in foobar from 1000 ms to 100 ms and now my tracks work in both 16 bit as well as 24 bit. (I didn't try 32, I just saw your post Mark).
So if foobar is working, they can hopefully fix JRMC as well!

/Anders
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post #7 of 18 Old 12-23-2008, 05:05 AM - Thread Starter
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Thanks to all for you answers!

Setting the configuration to stereo did work for 44khz DTS WAV files!

Now, I have a few questions concerning 7.1 LPCM and bitperfect:

1. When using PowerDVD, and having the configuration as 5.1, I see all the PCM channels in the receiver. Now, PowerDVD *is* going through Vista's kmixer, right? I mean, it's not feeding pure PCM to the receiver, as I might expect when playing a .flac file with WASAPI in Foobar. Is that correct?

2. I downloaded a couple of multichannel flac files and tried them in foobar using WASAPI, but they didn't play ("could not open device", same error as the second post). But if I choose HDMI directly, it seems to work, although, again, I think it's going through kmixer again. I haven't tried lowering the buffer length yet, but I will try that when I can.

My receiver doesn't support Dolby TrueHD or the DTS equivalent, but I would like to feed it at least pure untouched PCM streams when using multichannel. Is that possible, either using PowerDVD or foobar, or both cases? And, more important, should it make a difference?

Quote:


BTW, the latest realtek driver for the ATI is 2.09:
(not allowed to post a URL yet)
/Anders

Thanks! Actually, I think I've downloaded those, but I'll check again. I may be confuseed about the version numbers.
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post #8 of 18 Old 01-17-2009, 07:28 AM
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Here is a WASAPI thread on the J. River Interact forum:
http://yabb.jriver.com/interact/index.php?topic=49536.0

We believe it's working in the latest build. Please post any problems you find.

Jim Hillegass / JRiver Media Center
jriver.com or Owners Thread at AVSForum
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post #9 of 18 Old 01-17-2009, 08:37 AM
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I can confirm that from build 104 and later, bit perfect WASAPI output is indeed working!
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post #10 of 18 Old 03-12-2009, 08:29 AM
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Hi there. Are all you guys getting automatic channel switching when using WASAPI-exclusive with foobar2000? Your receiver should switch to stereo/5.1/7.1 automatically depending on the source. I am getting all of WASAPI's benefits/side effects except for that. I'm using a 4550 with 2.18 drivers, and it seems some of you have the same going on? I got a thread going at the jriver forums. So far I haven't been able to isolate my problem. Any help would be appreciated.

Thanks.
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post #11 of 18 Old 03-12-2009, 09:18 AM
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be sure to drop your Buffering in Foobar down, I had the same Errors until I dropped it.

Some are saying anything <900 will solve it, I went down the 250, and then also altered it in ReClock.

Otherwise, I am getting BitPerfect with the help from this Thread:
http://www.avsforum.com/avs-vb/showthread.php?t=1118204

32-bit, follow those settings, and my Onkyo 705 reports PCM 7.1, and switches from 48-96 when playing multichannel through only HDMI.

Also using the Realtek R2.18 (both packages, first the underlying driver, then the HDMI pack after reboots).
Hope it helps fill in the gaps for other 4XXX users.
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post #12 of 18 Old 03-12-2009, 01:21 PM
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Quote:
Originally Posted by Dgephri View Post

be sure to drop your Buffering in Foobar down, I had the same Errors until I dropped it.

Some are saying anything <900 will solve it, I went down the 250, and then also altered it in ReClock.

Otherwise, I am getting BitPerfect with the help from this Thread:
http://www.avsforum.com/avs-vb/showthread.php?t=1118204

32-bit, follow those settings, and my Onkyo 705 reports PCM 7.1, and switches from 48-96 when playing multichannel through only HDMI.

Also using the Realtek R2.18 (both packages, first the underlying driver, then the HDMI pack after reboots).
Hope it helps fill in the gaps for other 4XXX users.

I've no problem playing it, it's just not switching number of channels in my receiver automatically. Is your receiver switching automatically say from 5.1 to stereo according to the content?
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post #13 of 18 Old 03-12-2009, 01:40 PM
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I learned that if you don't enable "allow exlclusive control", bitstreaming of the AC3 and DTS codecs is impossible in Vista. i recall being able to stream these with foobar, but not if that setting was unchecked.

WASAPI doesn't matter with bitstream codecs because Windows doesn't actually touch it in the mixer, hence "bitSTREAM"
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post #14 of 18 Old 03-12-2009, 01:43 PM
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1.) in 7.1 setting in control panel, my Onkyo display sticks at 7.1, but the Bitrate changes when I put different kHz material in.

2.) when I play Stereo material (like a CD rip) and I turn off all Processing (called Direct mode by Onkyo) the Receiver still shows "MCH PCM 7.1" but I only hear sound from the front two mains.

3.) when I play multichannel stuff, the Receiver still shows "MCH PCM 7.1 " but the Bitrate changes with the source material.

4.) same behavior overall when I set to 5.1: the unnecessary speakers just don't put out any sound the display on Receiver shows "MCH PCM 5.1."

I set Vista Properties back to 96/24 since I don't have any material at 192/24 and it just seemed like a proverbial waste.

Hope it helps.
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post #15 of 18 Old 03-12-2009, 02:01 PM
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Quote:
Originally Posted by Dgephri View Post

1.) in 7.1 setting in control panel, my Onkyo display sticks at 7.1, but the Bitrate changes when I put different kHz material in.

2.) when I play Stereo material (like a CD rip) and I turn off all Processing (called Direct mode by Onkyo) the Receiver still shows "MCH PCM 7.1" but I only hear sound from the front two mains.

3.) when I play multichannel stuff, the Receiver still shows "MCH PCM 7.1 " but the Bitrate changes with the source material.

4.) same behavior overall when I set to 5.1: the unnecessary speakers just don't put out any sound the display on Receiver shows "MCH PCM 5.1."

I set Vista Properties back to 96/24 since I don't have any material at 192/24 and it just seemed like a proverbial waste.

Hope it helps.

thanks so much for this info. Now we have the same problem! I was using Reclock to switch number of channels automatically, but I then learned that WASAPI exclusive should be doing it automatically. Somehow we're not getting that. I'm in the process of troubleshooting right now with a clean Vista installation. Check this thread for more info. Hope you don't mind me mentioning you.
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post #16 of 18 Old 03-12-2009, 02:24 PM
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well, I'm no expert, I just try things others suggest (like the Bit-accurate thread I mentioned) and report back.

I take no credit except to describe what I see between my Onkyo 705 and my HTPC with an ATI 4550 running HDMI.
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post #17 of 18 Old 03-12-2009, 02:38 PM
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Quote:
Originally Posted by Dgephri View Post

well, I'm no expert, I just try things others suggest (like the Bit-accurate thread I mentioned) and report back.

I take no credit except to describe what I see between my Onkyo 705 and my HTPC with an ATI 4550 running HDMI.

I've been reading that thread, I'll ask there since there's people with other hardware too.

Thanks again. Still haven't resolved it.
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post #18 of 18 Old 05-15-2009, 10:46 AM
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Try to play different sounds via WASAPI and ASIO in foobar2000
Besides already mentioned issues found some new

1. Strange situation with Microsoft Sample http://download.microsoft.com/downlo...8/8Channel.exe http://www.microsoft.com/windows/win...tichannel.aspx
7.1 48kHz WMA V9
I received via WASAPI Unrecoverable playback error: Could not open device: unsupported data format: 48000 Hz / 24-bit / 8 channels
Tried 16 and 32bit w/o success

2. When try to play 5.0 96/24 Era - [2003] The Mass WavPack normal
Unrecoverable playback error: Could not open device: unsupported data format: 96000 Hz / 24-bit / 5 channels

Both files played fine via ASIO with right kHz. Only one issue: always in 7.1

What's matter?

HD4550 HDMI 2.18 driver
HK AVR255 support following LPCM in EDID
LPCM 2-channel, 16/20/24 bit depths at 32/44/48/88/96/176/192 kHz
LPCM 6-channel, 16/20/24 bit depths at 32/44/48/88/96/176/192 kHz
LPCM 8-channel, 16/20/24 bit depths at 32/44/48/88/96/176/192 kHz

4.0 44/24 Mike Oldfield Hergest Ridge played well via WASAPI, but in 5.1
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