View Full Version : 24 bit Flac playback issue

02-20-2010, 03:29 AM
When attempting to play 24 bit Flac files (various frequencies), I get pulses of white noise just under every second (72 pulses/minute). In between the pulses, I can hear the music playing. I am streaming via a wired connection to an Oppo BDP-83. In the config settings, I have the bits and freq set to "any" and channels set to two as I don't want to knock the files down to 16 bit unless there is no other option. However, even if I set the max to 16 bit and 48 kHz, I get the same pulses. I am able to successfully play the same 24 bit files via another dlna server software so there is no issue with the network bandwidth or ability for my computer to handle it. Any suggestions to troubleshoot further to identify the source of the problem? Thanks!

02-20-2010, 06:20 AM
Can the oppo play FLAC or is it using the LPCM stream?

02-20-2010, 12:40 PM
It can't decode FLAC

02-20-2010, 09:04 PM
Correct. No native support for Flac or Wav files in the Oppo at this time so transcoding to LPCM.

02-23-2010, 08:22 AM
Please email:


with reference to this thread, there is a test version I would like you to try.

02-24-2010, 03:07 AM
Email sent, thanks!

03-28-2010, 04:04 PM
Hi Spoon. Have you been able to make FLAC work on the Oppo BD-83? I just bought one and am transcoding all my library to FLAC.

03-28-2010, 06:41 PM
It is something I hope to get onto very soon.

05-16-2010, 11:27 AM
Anyone with an oppo 83 please run Asset Control with the debug on, so I can see if L24 is supported:


10-05-2010, 12:49 PM
Just ripped my Beach Boys 32 album CD collection to flac.

The first 17 albums are HDCDs (2001 Remasters) and have been encoded correctly in CDRipper using the HDCD dsp as 44.1KHz, 24-bit.

The remaining albums are plain 44.1KHz, 16-bit.

In the OPPO BDP-83 only the 16-bit files are showing up.

Please can anyone advise regarding the 24-bit files please?

10-05-2010, 04:59 PM
Only L16 is currently supported on the Oppo, not L24

10-05-2010, 06:32 PM
Hi Just got home and spoke to Oppo on the phone, they say that the 24 bit files should play if they get transcoded correctly and passed to the oppo via enet.
I went back from Oppos latest public beta and uninstalled Asset beta v3 and redownloaded Asset v3 beta from the link on the beta site here. Re-cataloged etc and made sure we were not limiting the bits in the edit section of V3. I still cannot see any 24 bit files from the oppo interface. If I do not select the 24 bit LPCM support in Asset the Oppo see the files fine, as 16 bit we think.

Opps seems to think its something is Asset that is not transcoding correctly.


01-05-2011, 08:17 PM
I have the same problem as adydula does. I'm streaming to an Oppo SE-83SE and with "L24 Supported" checked, no 24 bit tracks display at all in the Asset browser. I'm running Asset V3. I saw in another thread regarding "The Bridge" with the PS Audio Perfect Wave Dac at:
that this configuration is successfully streaming 24-bit.

Is this an issue with Asset? I have not contacted Oppo based on preceding comment that Oppo sees no problem with streamed 24-bit content.


01-06-2011, 04:03 AM
The oppo does not support L24

03-20-2011, 06:56 AM
The oppo does not support L24

Hello, tried again to stream through my Oppo BDP-83SE NuForce (with latest firmware BDP83-55-0226B [17-03-2011] that supports LPCM streaming): without L24 I can now access HD/mchannel audio files, but only in stereo - while I've a "big" collection of multi-channel HD files that I'd like to play in LPCM 5.1 at maximum possible quality (it's already a pity Oppo doesn't support L24).

Follows a sample (a can provide the complete log, if needed) of my Asset logfile, that shows how Asset understands it's a 5.1 FLAC/24, but streams it only in stereo/16...
Any ideas? THANKS!

Streaming 'M:\music\[DTS]\[FLAC 6CH 48-24] Alan Parsons - A Valid Path\(FLAC 5.1 24,48) Alan Parsons - A Valid Path - 03 - Mannagamma `04.flac'
->-> [clDecoder::Open]
Opening file 'M:\music\[DTS]\[FLAC 6CH 48-24] Alan Parsons - A Valid Path\(FLAC 5.1 24,48) Alan Parsons - A Valid Path - 03 - Mannagamma `04.flac' for read access: Opened
Init FLAC:
Reading Meta Data:
contained 5 tags:
TITLE: Mannagamma `04
ARTIST: (FLAC 5.1 24,48) Alan Parsons
ALBUM: A Valid Path
Track: 03
album artist: (FLAC 5.1 24,48) Alan Parsons
->-> [clDecoder::ReadIDTags]
<-<- [clDecoder::ReadIDTags]
->-> [clDecoder::FillAudioProps]
Encoder: FLAC reference libFLAC 1.2.1 20070917
Sample Count: 14,888.960
ID Tag: Vorbis Comments
Contains: CRC, ID Tag [Vorbis Comments]
<-<- [clDecoder::FillAudioProps]
->-> [clDecoder::FillAudioInfo]
Uncompressed WFX (sent to db): Format Tag: 1 Channels: 6 Bits per Sample: 24 Samples Per Second: 48000 Bytes Per Second: 864000 Block Align: 18 CB Size: 0
Audio Length: 310186 mili-seconds 163141851 bytes 6912 kbps
<-<- [clDecoder::FillAudioInfo]
Creating Decode Buffers: Created
<-<- [clDecoder::Open]

Forced Streaming to LPCM Format Tag: 1 Channels: 2 Bits per Sample: 16 Samples Per Second: 48000 Bytes Per Second: 192000 Block Align: 4 CB Size: 0
Steaming 59555840 bytes from Format Tag: 1 Channels: 6 Bits per Sample: 24 Samples Per Second: 48000 Bytes Per Second: 864000 Block Align: 18 CB Size: 0

Serve Entity Set to: audio/L16;rate=48000;channels=2