Prices. Choose optimal >
Order >
Advantages
F.A.Q.
Warranty
Support
Contact

How convert ISO to DSF WAV FLAC AIFF without clicks. User manual

There are some tricks of convertion high resolution 1-bit audio disk image ISO to DSF, WAV, FLAC, AIFF, ... files for achieving better result. Here described instructions for converting ISO without clicks via AuI ConverteR 48x44.

Conversion ISO to DSF FLAC WAV AIFF. User manual

 

Conversion ISO to FLAC, WAV, AIFF and other PCM formats supported for AuI ConverteR Audiophil-E and above and Modula-R. Conversion ISO to DSF supported for AuI ConverteR PROduce-RD and Modula-R (some configurations) only.

 

Audio converter DFF to DSF Mac OS X, Windows

AuI ConverteR 48x44 download free


Download free HD audio converter AuI ConverteR 48x44 for high resolution music
WAV, FLAC, AIFF, ALAC, ISO, DFF, DSF, WMA, mp3,...

 

Content

1. Reasons of ISO conversion clicks

    1.1. Extracting ISO to DSF without last partitial block due some extraction software bug

          1.1.1. Why need extract ISO to DSF not DFF?

          1.1.2. How fix click by lost block audio data DSF during extraction

    1.2. DC bias for some tracks

    1.3. Clicks in silence (pauses) between tracks

    1.4. How eliminate click for album playback

    1.5. How eliminate click for playback of separate tracks

    1.6. Audio player matter of playback clicks

2. Ways of ISO conversion

    2.1. Bit perfect conversion

    2.2. Seamless resampling

    2.3. DC biased audio content conversion (Smooth DC mode)

3. How extract stereo and multichannel ISO tracks

4. How remove pause from beging first track extracted from ISO

5. What do with red log message "error: input file is compressed"

6. What is mean log message "app e: libsacdread: Can't open X:/iso/Sample ?.iso for reading"

7. What is mean log message "Error ISO conversion in log file: libsacdread: Not a ScarletBook disc! libsacdread: Can't read Master TOC"

 


Download free HD audio converter AuI ConverteR 48x44 for high resolution music
WAV, FLAC, AIFF, ALAC, ISO, DFF, DSF, WMA, mp3,...

1. Reasons of ISO conversion clicks

1. Extracting ISO to DSF without last partitial block due some extraction software bug

2. DC bias for some tracks

3. Troubles of playback software

 

1.1. Extracting ISO to DSF without last partitial block due some extraction software bug

It is well known trouble of sacd_extract software for ISO to DSF conversion.

Audio data in DSF audio file divided to blocks. And last block can be partially filled. Rest its space filled by zeroes. During playback software / hardware player don't play these zeroes.

Some ISO contains uninterrupted stuff (like opera or live concert). Lost during extraction last block give burst of the ininterrupted original stuff. It listened as light but unpleasant click.

sacd_extract software extract audio content without the bursts / clicks for conversion ISO to DFF, .

The software's developers inform that for v. 0.3.8 "fixed a bug where a DSF export truncated sample data".

1.1.1. Why need extract ISO to DSF not DFF?

DSF file can contains metadata (album and track name, performer, album arts) in standard implementation. It must support audio playback software / hardware.

DFF file can contains metadata in non standard chunk (block). Same model used for WAV and AIFF for support id3 type of metadata.

When sacd_extract convert ISO to DSF, it place available metadata to output DSF.

But some versions have the DSFs with clicks.

 

1.1.2. How fix click by lost block audio data DSF during extraction

AuI ConverteR 48x44 pass by the click trouble via next conversion workflow:

ISO -> DFF-file + CUE-file with metadata -> DSF with metadata from CUE-file

SACD ISO to DSF workflow

All it work transparently for user. Only need click Start button and wait for ready DSF.

For extracting SACD without resampling here suitable Bit perfect conversion ISO to DSF.

 

 

1.2. DC bias for some tracks as click reason

Some ISO's audio tracks have DC bias. Even this offset can not be constant.

On the picture we can see how in right channel of track #1 bias rise gradually:

DC bias ISO's track

In next track the bias remains constant. In last track bias drop to zero gradually.

 

Clicks during playback separate tracks

If playback such album as single stream (without re-initialization playback software and hardware), will not clicks.

 

Clicks during playback separate tracks

Playback separate track #1 the album give click at end, separate last track  - click at its begin.

For all other tracks clicks will at its beging and end.

In picture showed DC bias in non-first track. The bias give click at begin and end of the file during playback.

DC bias in non-first track

 

1.3. Clicks in silence (pauses) between tracks

Clicks may be contains in pauses between tracks. For removing the pauses in main window of AuI ConverteR click Settings button. Further in

Settings window > CD ripper/ISO tab:

a) Skip pause for first ISO track switch set checked.

b) Skip pauses for all tracks switch set checked.

In Settings window click OK.

 

1.4. How eliminate click for album playback

If album must played back as single stream (like concert recorded as single  audio file and divided to several tracks for placing to SACD, DVDA, CDA), need gapless playback ability of audio file player.

For extracting SACD without resampling suitable Bit perfect conversion ISO to DSF. There audio stuff from ISO will full binary identical extracted DSF file.

For extracting SACD with resampling or to PCM (WAV, FLAC, AIFF,...) suitable Seamless conversion ISO. It provide integrity of album tracks as single stream for new sample rate.

 

1.5. How eliminate click for playback of separate tracks

For separate track possible Smooth DC decission. But for playback of album like live concert (without pause in begin and end of track) we will get short pauses in places of track borders.

More details in Audio player matter for playback clicks part.

 

1.6. Audio player matter of playback clicks

Then files, bit-perfectly extracted from such ISO, played back properly (without re-initialization software and hardware - DAC's driver) click will not be produced. Such playback mode called as gapless playback.

If audio software or hardware player re-initialize DAC's driver for each track, DC bias will listened as click.

For avoiding such clicks recommended use DC biased audio content conversion (smooth DC) way by AuI ConverteR 48x44.

 

 

 


Download free HD audio converter AuI ConverteR 48x44 for high resolution music
WAV, FLAC, AIFF, ALAC, ISO, DFF, DSF, WMA, mp3,...

 


2. Ways of ISO conversion

- Bit perfect conversion

    binary audio content is fully identical to original

- Seamless resampling

    Audio content offline accurete adjusted to "best sounding" sample rate of your DAC,
    for avoiding upsampling "on fly" in audio player and hardware.

- DC biased audio content conversion

    Some ISOs can contains DC bias for all tracks. The bias can cause clicks.

 

2.1. Bit perfect conversion

For copying binary audio content AuI ConverteR 48x44 support bit perfect conversion. It is possible for output sample rate same to input.

Example: if you convert ISO to DSF in bit perfect mode, binary audio content of ISO's tracks will transfered to DSFs without changes.

For providing gapless playback need capable audio player software and hardware.

 

Manage Bit Perfect Conversion mode

1. In main window of AuI ConverteR 48x44 click Settings button.

Settings for bit perfect conversion

2. Into Setting window click General tab.

3. Check Don't make DSP... and uncheck Smooth DC switches.

4. Click OK button in Settings window.

 

 

 

2.2. Seamless resampling

Other name - True Gapless Conversion.

This mode allow convert album files without transient processes on border between tracks.

True Gapless Conversion

On picture showed border of merged neighbour album track, that converted without True Gapless Mode. At upper part of the picture showed noise splash (light vertical line) by click on border of tracks.

At bottom part of the picture True Gapless Mode ON during album conversion. There we don't see transient between neighbour tracks.

Transient process due unproper conversion can be almost invisible at oscillogram but listened as light click.

 

For providing gapless playback need capable audio player software and hardware.

 

Manage True Gapless Conversion mode

1. In main window of AuI ConverteR 48x44 need click Parameters tab.

True Gapless Mode management

2. True Gapless Mode turned ON (checked switch) / OFF (unchecked switch).

3. In main window of AuI ConverteR 48x44 click Settings button.

Don't make DSP

4. Into Setting window click General tab.

5. Uncheck Don't make DSP... and Smooth DC switches.

6. Click OK button in Settings window.

 

This mode supported in AuI ConverteR PROduce-RD and Modula-R editions.

Seamless transformation of audio resolution achieved via conversion without re-initializing of digital signal processing module.

True Gapless conversion mode work slower than usual parallel (multi-CPU) mode. Due files must be processed sequentially for providing seamless borders.

 

 

 

2.3. DC biased audio content conversion (smooth DC)

This mode assigned for smoothing click at begin and end of track. As rule such click appear for DSF non properly extracted from ISO. Or due slight DC offset into album tracks.

AuI ConverteR provide additional loudness control:

a) smooth and fast increasing in begin of track,

b) smooth and fast decreasing in end of track.

It allow avoid clicks. However, it is not suitable for tracks without silence at begin and end.

If Smooth DC mode will applied to uninterrupted via all track live concert record, will short pauses (1...N milliseconds) on track borders.

Smoth DC mode allowable if such tracks will playback separatelly.

 

Smooth DC for begin of first album track only

For several ISO converting (several ISO added to Source file list of main window of AuI ConvereR 48x44) smooth DC can be applied to begin of first tracks each ISO.

For converting batch files, applied to first file in Source file list of main window of AuI ConvereR 48x44.

 

Manage Smooth DC mode

Smooth DC for begin and end track

1. In main window of AuI ConverteR 48x44 click Settings button.

Settings for Smooth DC mode

2. Into Setting window click General tab.

3. Unheck Don't make DSP... and check Smooth DC switches.

4. Click OK button in Settings window.

 

Smooth DC for begin of first album track only

1. In main window of AuI ConverteR 48x44 click Settings button.

Settings for Smooth DC mode for first track

2. Into Setting window click General tab.

3. Unheck Don't make DSP... and check Smooth DC begin first track switches.

4. Click OK button in Settings window.

 

 


3. How extract stereo and multichannel ISO tracks

AuI ConverteR 48x44 can extract from ISO either stereo or multichannel track by user choise.

 

Manage stereo / multichannel track extraction mode

1. In main window of AuI ConverteR 48x44 click Settings button.

2. Into Setting window click CD ripper/ISO tab.

Stereo and multichannel ISO extraction

3. Select stereo or multichannel extraction mode

    3.1. For extraction multichannel tracks uncheck Force read stereo track... switch.

    3.2. For extraction stereo tracks check Force read stereo track... switch.

4. Click OK button in Settings window.

 

 

Since version 6.0.3 appear ability of extracting from ISO only selected kind of tracks: stereo or multichannel.

Into Setting window click CD ripper/ISO tab Selected channel number only switch.

1. Selected channel number only switch checked (ON), Force read stereo track... checked (ON):

1.1. If ISO contains 2.0 only or 2.0 and 5.1 extracted stereo (2.0).

1.2. If ISO contains 5.1 only extracted nothing.

 

2. Selected channel number only switch checked (ON), Force read stereo track... unchecked (OFF):

2.1. If ISO contains 5.1 only or 2.0 and 5.1 extracted multichannel (5.1).

2.2. If ISO contains 2.0 only extracted nothing.

 

3. Selected channel number only switch unchecked (OFF), Force read stereo track... checked (ON):

3.1. If ISO contains 2.0 only or 2.0 and 5.1 extracted stereo (2.0).

3.2. If ISO contains 5.1 only extracted multichannel (5.1).

 

2. Selected channel number only switch unchecked (OFF), Force read stereo track... unchecked (OFF):

2.1. If ISO contains 5.1 only or 2.0 and 5.1 extracted multichannel (5.1).

2.2. If ISO contains 2.0 only extracted stereo (2.0).

 

 


4. How remove pause from beging first track extracted from ISO

AuI ConverteR 48x44 can skip pause first track when extract audio files from ISO.

 

Manage skipping pause before 1 track of ISO 1 bit audio file

1. In main window of AuI ConverteR 48x44 click Settings button.

2. Into Setting window click CD ripper/ISO tab.

How remove 2 second pause begin first ISO track

3. Turn ON/OFF skip pause mode via checking/unchecking Skip pause for first ISO track switch.

4. Length of skipped pause adjusted via Pause, ms input field in milliseconds.

5. Click OK button in Settings window.

 


5. What do with red log message "error: input file is compressed"

It is problem of obsolete versions of AuI ConverteR 48x44.

1. Download and re-install last version.

2. Reset input decoders.

3. Restart AuI ConverteR.

 


6. What is mean log message "app e: libsacdread: Can't open X:/iso/Sample ?.iso for reading"

In the file path and/or name we can see ? simbol(s). It is issue of non English symbols in *.iso file path and name. Rename this ISO file so it contains English symbols only.

 


7. What is mean log message "Error ISO conversion in log file: libsacdread: Not a ScarletBook disc! libsacdread: Can't read Master TOC"

1. Install virtual DVD-RW drive software TotalMounter.
2. Install image burnig software ImgBurn.
3. In TotalMounter mount new DVD-RW drive.
4. In ImgBurn write ISO image (that showing the error) to the new virtual drive (keep verify on).
5. Open new created ISO image in AuI ConverteR and convert it.


Download free HD audio converter AuI ConverteR 48x44 for high resolution music
WAV, FLAC, AIFF, ALAC, ISO, DFF, DSF, WMA, mp3,...
[Login/Register]
AuI ConverteR 48x44 RSS Audiophile Inventory on Facebook Audiophile Inventory on Google+ Audiophile Inventory on LinkedIn

Audiophile converter
ISO DSF DFF FLAC WAV...
 CD ripper
DSF/FLAC metatag editor
AuI ConverteR 48x44

 
Loading

Released new studio audio converter AuI ConverteR 48x44 v. 6.1 CD ripper, ISO, DFF, DSF, WAV, FLAC, AIFF, ALAC. Apllied input and ouput DSF (D1024) audio file support; non-English simbols in ISO file name issues (under Windows), other minor issues.

Released new studio audio converter AuI ConverteR 48x44 v. 6.0.3 CD ripper, ISO, DFF, DSF, WAV, FLAC, AIFF, ALAC. In the settings added option for extracting of stereo or multichannel track only. Fixed wrong reading of long album, performer, track names from CD database.

Released new studio audio converter AuI ConverteR 48x44 v. 6.0.2 CD ripper, ISO, DFF, DSF, WAV, FLAC, AIFF, ALAC. Added album artwork management, fixed CUE+multiple files issue, trimmed long file path/name for ISO extractor under Windows and several minor bugs.

Copyright © Yuri Korzunov [Audiophile Inventory (audiventory.com)], 2010-2016. All Rights Reserved.

Site map