INTERACT FORUM

Please login or register.

Login with username, password and session length
Advanced search  
Pages: [1]   Go Down

Author Topic: cannot convert pcm-bluray to dsd  (Read 360 times)

anpontan

  • Member
  • *
  • Posts: 2
cannot convert pcm-bluray to dsd
« on: April 13, 2024, 02:56:46 pm »

I would like to use DSP Studio to convert 2ch PCM of Blu-ray Video to DSD Bitstream, but it will be played as PCM 48khz.
I tried several settings of DSP Studio such as Native and DoP, but it did not improve.
I tried both ASIO and WASAPI settings for the Audio Device, but this did not improve either.
Regular WAV and FLAC audio files have been successfully converted to DSD.
I would appreciate any help.

anpontan
Logged

slerch666

  • World Citizen
  • ***
  • Posts: 203
Re: cannot convert pcm-bluray to dsd
« Reply #1 on: April 15, 2024, 01:31:36 pm »

I wonder if it has to do with it also having video in the stream?
Or did you rip the audio from the BD to PCM files?
To test I ripped the audio from my file as FLAC and of course that encoded as DSD just fine.
I have ripped files using DVD Audio Extractor in .PCM format but MC will not recognize them.


To test video file, I tried this on my PC:

Set DSP Studio to Output encoding to 2x DSD in DoP (WASAPI) and then 2x in Native (ASIO driver used)
Verified that my music is sent in DSD format
Played a BD rip I had w/ PCM 24 bit 48 KHz - played as normal PCM

Set DSP Studio to None for encoding, played with 48 KHz upsampled to 192 KHz and it upscaled the audio just fine and sent as PCM.


Logged

anpontan

  • Member
  • *
  • Posts: 2
Re: cannot convert pcm-bluray to dsd
« Reply #2 on: April 15, 2024, 03:29:25 pm »

I did not rip from BD to PCM file.
I played a Blu-ray Video after ripping it with MC, but it was not possible to convert it to DSD during playback.
Encoding to PCM 192khz is successful.
Then, when I tested whether DVDs and MP4s could be converted to DSD, all videos could not be converted to DSD and were output as PCM.
Thanks for the reply.
Logged

masakix

  • Recent member
  • *
  • Posts: 11
Re: cannot convert pcm-bluray to dsd
« Reply #3 on: April 17, 2024, 08:23:47 pm »

I am in the same situation.
When watching a video file, no matter how I set it up, it changes to PCM 48 kHz and direct connection.
Logged

Awesome Donkey

  • Administrator
  • Citizen of the Universe
  • *****
  • Posts: 7402
  • The color of Spring...
Re: cannot convert pcm-bluray to dsd
« Reply #4 on: April 17, 2024, 09:40:32 pm »

I don't think it's possible to convert and output audio from video to DSD. If it's a DVD-Audio or BD-Audio disc you'll have to rip the audio to an audio format like WAV or FLAC and then convert it from PCM to DSD. For movies and shows I don't think it can work that way.

Unless someone corrects me (which I would be a little surprised if it's possible with video files) I think this is a non-starter unfortunately.
Logged
I don't work for JRiver... I help keep the forums safe from Viagra and other sources of sketchy pharmaceuticals.

Windows 11 2023 Update (23H2) 64-bit + Ubuntu 24.04 LTS Noble Numbat 64-bit | Windows 11 2023 Update (23H2) 64-bit (Intel N305 Fanless NUC 16GB RAM/256GB NVMe SSD)
JRiver Media Center 32 (Windows + Linux) | iFi ZEN DAC 3 | Edifier R2000DB Bookshelf Speakers | Audio-Technica ATH-M50x Headphones

slerch666

  • World Citizen
  • ***
  • Posts: 203
Re: cannot convert pcm-bluray to dsd
« Reply #5 on: April 18, 2024, 07:46:46 am »

I don't think it's possible to convert and output audio from video to DSD. If it's a DVD-Audio or BD-Audio disc you'll have to rip the audio to an audio format like WAV or FLAC and then convert it from PCM to DSD. For movies and shows I don't think it can work that way.

I am not really sure what is gained by putting the audio from a BD video into a DSD stream either way.
"But I want to" is usually a good reason to TRY something with MC. You can upconvert the audio in the stream to a higher sample rate but it won't put it in a DSD container. Pretty sure that's because there is no expectation for DSD to include video.
Logged

dtc

  • MC Beta Team
  • Citizen of the Universe
  • *****
  • Posts: 3020
Re: cannot convert pcm-bluray to dsd
« Reply #6 on: April 20, 2024, 07:33:45 am »

I did not rip from BD to PCM file.
I played a Blu-ray Video after ripping it with MC, but it was not possible to convert it to DSD during playback.
Encoding to PCM 192khz is successful.
Then, when I tested whether DVDs and MP4s could be converted to DSD, all videos could not be converted to DSD and were output as PCM.
Thanks for the reply.

It seems like the OP can convert the Blu-Ray to 192 PCM, but not to DSD. So, it is not a general problem of converting to audio format, but rather specifically to DSD format. That seems like a limitation of the DSD process, not a limitation of converting to an audio format (like flac) in general.  Converting Blu-Ray to DSD may not be common, but it seems like if the process works for PCM it should work for DSD.
Logged
Pages: [1]   Go Up