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How Convert ISO to DSF, WAV, etc. without Clicks (Mac OS X and Windows)

For some 1-bit audio ISO images exists problem of clicks in extracted audio files. Below we consider how avoid clicks during ISO extracting under Mac OS X and Windows.

Clickless ISO to DSF conversion

Reasons of the clicks after ISO extraction

are:

1. Non-zero levels at begin and end of album's tracks.

2. DC shifting in audio track.

3. Non-accurate ISO extraction.

Operas, live concerts, and same things is case #1. Here borders of tracks placed at random place of solid audio stream.

In case #2 some ISOs have DC shifting what continued thru all tracks.

DC bias for some ISO images

ISO DC bias

In the picture we see first track of album. Here DC bias is increased.

Next tracks hase constant DC bias.

In last track it decreased to zero.

If player able to gapless playback we have not troubles with the bias.

 

In case #3 for ISOs like case #1 and #2 must be extracted accuratelly for gapless (clickless) transient between tracks.

sacd_extract utility during ISO to DSF conversion lose last underflows audio data block from each track. It lead to bursts in solid audio stream in ISO's album tracks.

We can see the bursts as splashes at sonogramm (or "waterfall", time-frequency diagram of audio signal). Splashes appear in places of tracks borders.

Click (splash on spectrum) without gapless conversion
(spectrum of two merged files)

Clickless ISO conversion

When source audio files (WAV, FLAC, DSF, DFF,...) from album resampled not as solid stream we get also irregularity on spectrum due ringing artefacts.

 

On the picture showed True Gapless Mode switch of audio converter AuI ConverteR 48x44.

For conversion all album's files as solid stream need True Gapless Mode switch turn ON.

 

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,...

 

 

How extract ISO without clicks

When extracting ISO to DFF audio files, we get all audio blocks for each track. Thus we get solid audio stream.

But with DFF we get problem of keeping metadata (song name, album, performer, year,...) from ISO. DFF don't support metadata.

Convert ISO to DSF with underflows blocks and metadata

Convert ISO to DSF with underflows blocks and metadata

The problem solved via extracting metadata to CUE list of tracks.

Last step is converting DFF to DSF with recording metadata to the DSF from the CUE.

Audiophile converter music files AuI ConverteR 48x44 PROduce-RD capable do all these actions for clickless (gapless) ISO to DSF conversion and ISO to WAV/AIFF/FLAC/...

Editions Audiophil-E and PROduce-R able for gapless convertion ISO to WAV/AIFF/FLAC/...

Available Mac OS X and Windows versions.

Here comparing table of editions.

 

Try FREE edition for checking this ability


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

 

FREE edition convert all tracks from ISO but insert 2 second silence in middle of each track.

Windows is either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

Read AuI ConverteR's user manual about ISO to DSF, FLAC, WAV, AIFF...

 

 

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AuI ConverteR 48x44

 
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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.

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