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Digital Release - Album Publishing.

Digital Release - Album Publishing.

May 02, 2022

Pyramix V12 (and above)

Master Settings

In the Generate Master window, the Image Format choice is important depending on the files you need to generate.

  • Mixer Output => PMI 44.1 kHz 16 bit file (RedBook compliant) => Post Processing (including sampling rate conversion and dithering).
    That means that all subsequent Album Publishing files are generated using a 44.1 kHz-16 bit file.
    If your project is not running at 44.1 kHz, SRC Filter type option is available to generate the CD Image file, choose between Linear Phase (Default), Minimum Phase or Apodizing. 

  • Dithering : Use Mixer settings refer to the Dither option set in the Mixer for the selected Bus.  Use 16 bits WLC/Noise shaper can be set to 1st/8th/49th order or no dithering.  This obviously bypasses the dither setting in the Mixer for the selected Bus. 

  • Stereo file output only.

  • Mixer Output => MTFF at the selected sampling rate => Post Processing (including sampling rate conversion and dithering if required).

  • If your project is not running at the same sampling rate as the selected Sample rate, the SRC Filter type option is available to generate the file, choose between Linear Phase (Default), Minimum Phase or Apodizing.

  • Resolution : 24 bit fixed / 32 bit float.

  • Mono, stereo and multichannel file output.

  • Lossless compression : only available for linear 24 bit PCM resolution, so not for 32 bit floating point PCM.

 



  • For Mixdown Mode : Mixer Output => DSDIFF in DSD64 / 128 / 256 (involves DXD / DXDx2 / DXDx4 conversion) => Post Processing (including sampling rate conversion and dithering if required in Album Publishing).

  • For DSD Rendering Mode : Timeline files rendering (bypassing the mixer) => Post Processing (including sampling rate conversion and dithering if required in Album Publishing).
    See Pyramix user manual for further details on the DSD Render feature.

    The Process DSD at original Sample rate option allows performing DSD Rendering processing (Gain and crossfades) at the original DSD material sample rate (i.e. 64 Fs for DSD64, 128 Fs for DSD128, 256 Fs for DSD256) (available since V12)

  • If your project is in PCM, the SRC Filter type option is available to generate the file, choose between Linear Phase (Default), Minimum Phase or Apodizing.
    Only Mixdown mode is available.

  • If your project is in DXD, you can choose between Mixdown mode (Mixer output), or DSD Rendering (if the audio files on your timeline are in the corresponding DSD type).

  • If your project is in DSD64, 128 or 256, only DSD Rendering mode is available, set in the corresponding DSD type.

  • In Mixdown mode, Sigma Delta Modulator let you select the required SDM (D or Trellis E).
    Note that Trellis E encoding requires more time than the default SDM D.
    Pre-processing gain can also be applied (to allow taking advantage of the extra [0, +3] dB DSD dynamic range allowed by the DSD domain)

  • Stereo or Multichannel files (depending on the Area selected).

Post processing

Album Publishing

  • Sampling rate conversion and dithering can be selected for each output format.
    Extra Gain parameter available in the Album Publishing output format is to be applied before Sigma Delta (DSD output format) or after SRC (PCM output format)

  • Mono, Stereo or Multichannel files (depending on the target format). 

DST Encoding (DSD Edited Master only)

  • Strategy can be chosen from :

    Same for all channels (00 / 000000)
    Stereo pairs (01 / 001233)

    Different for all channels (012345)


Album Publishing Processing Flow diagrams

Dotted line processes are only used if required.
As of Pyramix V12

PCM to PCM

Gain is only available if SRC and/or dithering is present.
SRC and Dithering modules are bypassed if not required (No Change)
Data conversion integer <-> float is used when the destination format does not support float bit rate.

DXD to DSD

DSDx to DSDx (same DSD rate)

DSDx to DSDx (same DSD rate) using MECO SDM (available since v12) with Gain (Extra Gain is different from 0.0 dB) adjustment 

(n = 64, 128, 256)


DSDx to DSDy (DSD format conversion)

1.With SDM D or Trellis E.

2.With MECO SDM (available since v12)

 

DSD to PCM 8Fs

Album Publishing Encoding dialog

Source summary displays information about the source datas, including Artwork, output jobs,...
At the end of the Album Publishing files creation, a peak metering is performed automatically.
See Pyramix User Manual for further details. 


FAQ

The Peak and TruePeak level are not the same between files with different frequencies

If you do a sampling rate conversion, you can expect to have different peak and TP values between the source file and the converted ones. 
Especially when upsampling, new samples are created, and therefore you can get more inter-samples peaks, peaks that were between two samples before the upsampling process.