INTERACT FORUM

Please login or register.

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

Author Topic: MC 27 upsampling problem  (Read 1124 times)

dctom

  • Recent member
  • *
  • Posts: 33
MC 27 upsampling problem
« on: December 03, 2020, 05:24:07 am »
Have had to reinstall MC 27, it has been working fine - however now..

When upsampling in DSP studio and  select 2xDSD or 4xDSD for instance, in the playback window I get-

 resample to 705 khz with SSRC , 
 encode as DSD in Dop format

this produces a strange distorted sound.

my DAC is 4 x DSD capable btw

can amyone help please
Logged

Manfred

  • Citizen of the Universe
  • *****
  • Posts: 1038
Re: MC 27 upsampling problem
« Reply #1 on: December 03, 2020, 10:25:05 am »
DSD over DoP is the only possibility to play DSD on the macOS platform. Exception is if the DAC vendor provide special drivers. You must enable this in Tools->options->audio->Device (DSD bitstream in DOP format) and also enable audio->bitstream->DSD

To package DSD128 in PCM, you need on the macOS platform 384 kHz PCM sampling rate. For DSD256 it would already be 768 kHz.

So your DAC must provide a pcm sample frequency of 768 kHz to play DSD256 on the macOS platform.
Logged
WS (AMD Ryzen 7 5700G, 32 GB DDR4-3200, 8=2x2+4 TB SDD, LG 34UC98-W)-USB|ADI-2 DAC FS|Canton AM5 - File Server (i3-3.9 GHz, 16GB ECC DDR4-2400, 46 TB disk space) - Media Renderer (i3-3.8 GHz, 8GB DDR4-2133, GTX 960)-USB|Devialet D220 Pro|Audeze LCD 2|B&W 804S|LG 4K OLED )

Awesome Donkey

  • Administrator
  • Citizen of the Universe
  • *****
  • Posts: 7887
  • Long cold Winter...
Re: MC 27 upsampling problem
« Reply #2 on: December 28, 2020, 03:31:46 pm »
Shot in the dark, but have you tried disabling (or enabling it if it's disabled) integer mode?
Logged
I don't work for JRiver... I help keep the forums safe from "male enhancements" and other sources of sketchy pharmaceuticals.

Windows 11 24H2 Update 64-bit + Ubuntu 24.10 Oracular Oriole 64-bit | Windows 11 24H2 Update 64-bit (Intel N305 Fanless NUC 16GB RAM/500GB M.2 NVMe SSD)
JRiver Media Center 33 (Windows + Linux) | iFi ZEN DAC 3 | JBL 306P MkII Studio Monitors | Audio-Technica ATH-M50x Headphones

bob

  • Administrator
  • Citizen of the Universe
  • *****
  • Posts: 13931
Re: MC 27 upsampling problem
« Reply #3 on: January 04, 2021, 10:18:06 pm »
I think there might be a bug here that Matt found recently.
Logged

Awesome Donkey

  • Administrator
  • Citizen of the Universe
  • *****
  • Posts: 7887
  • Long cold Winter...
Re: MC 27 upsampling problem
« Reply #4 on: January 05, 2021, 01:43:22 am »
Indeed, it is likely the DoP issue.
Logged
I don't work for JRiver... I help keep the forums safe from "male enhancements" and other sources of sketchy pharmaceuticals.

Windows 11 24H2 Update 64-bit + Ubuntu 24.10 Oracular Oriole 64-bit | Windows 11 24H2 Update 64-bit (Intel N305 Fanless NUC 16GB RAM/500GB M.2 NVMe SSD)
JRiver Media Center 33 (Windows + Linux) | iFi ZEN DAC 3 | JBL 306P MkII Studio Monitors | Audio-Technica ATH-M50x Headphones

bob

  • Administrator
  • Citizen of the Universe
  • *****
  • Posts: 13931
Re: MC 27 upsampling problem
« Reply #5 on: January 05, 2021, 08:46:02 am »
Verified the problem and the fix. Will upload a new build today.
Logged
Pages: [1]   Go Up
« previous next »