Jump to content

Sign in to follow this  
Gregory13

Music files: 16bit vs 24 bit

Recommended Posts

One thing that relates to this topic I've wondered relates to the final steps used to produce different versions of the same download.

 

For example, 2L offers the HiRes Download - test bench to compare downloads in different formats and bit depths. On this page they say, " All resolutions and encodings are derived from the same original DXD source files."

 

This means the source files are being transformed to produce different music file formats.

 

I'd imagine this is generally how music download files are produced -- transform your final mix into different formats for distribution and sale.

 

Is it possible these transformations are introducing audible variations that may account for the differences some people are saying they hear?

Share this post


Link to post
Share on other sites
Just now, davm said:

One thing that relates to this topic I've wondered relates to the final steps used to produce different versions of the same download.

 

For example, 2L offers the HiRes Download - test bench to compare downloads in different formats and bit depths. On this page they say, " All resolutions and encodings are derived from the same original DXD source files."

 

This means the source files are being transformed to produce different music file formats.

 

I'd imagine this is generally how music download files are produced -- transform your final mix into different formats for distribution and sale.

 

Is it possible these transformations are introducing audible variations that may account for the differences some people are saying they hear?

2L has always been very good with this... they have in the very early days of hi-res even provided same track in various forms on even different disc formats from CD-SACD-DVDA and blu-ray so folks can make their own minds ups the sand forum they used to seek feedback. 

 

blu-ray audio is a good example where they also released the  same track released on DTS-HDMA and TrueHD sound tracks both "lossless" I am sure for those purists that seem to believe that because things are lossless it is all going to be the same :D 

Share this post


Link to post
Share on other sites
2 hours ago, davm said:

Is it possible these transformations are introducing audible variations that may account for the differences some people are saying they hear?

(The MQA process alters the audio, intentionally, so it could sound slightly different.  MQA versions call for a separate specialized discussion.)

 

Generally, there should be no difference* and with a Digital Audio Workstation capable of importing two decoded versions for comparison and subtracting one from the other that subtraction should result in a solid null. The difference products should be signals of low enough intensity and of a spectral distribution to be inaudible for human ears, notably quantization noise. 

 

One factor if using hardware to decode and play files is that the playback device will not necessarily generate the same output level for different formats.  For example a DSD version may not result in the same playback reference "0dB" level as a PCM version.

 

________

 

* Downsampling to 44.1kHz can create minor issues because of the different filters that could be applied. The differences tend to be slight and subtle, barely audible.  As for bit depth reduction to 16 bits, if  done with appropriate noise-shaped  dither, this appears to give a result indistinguishable from higher bit-depths, for standard recording and playback levels, for human ears.. 

Edited by MLXXX

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Classifieds Statistics


    Currently Active Ads

    Total Sales (Since 2018)

    Total Sales Value (Last 14 Days)

    Total Ads Value (Since March 2020)
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...