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Steam app 1529240 · updated 12 Sep 2026, 22:18 UTC

AudiobookConverter

AudioBookConverter is modern audio encoder supporting converion of most of popular formats (mp3, wma, m4a, flac) to m4b, mp3, ogg. It also can handle existing m4b files and process them with chapters, artwork and other meta information. On modern PC it is faster then most of its competitors.

AudiobookConverter Steam header artwork
RecouplerRecoupler
15playing now
1524-hour peak
23all-time peak
9average, last 30 days

The last 30 days

−0.6Gain−5.62%% gain17Peak

281 hourly samples, with the daily peak drawn over them. Weekends are shaded.

059141813 Aug18 Aug23 Aug28 Aug02 Sep07 Sep12 SepThursday 13 August 20268 peakFriday 14 August 202610 peakSaturday 15 August 202611 peakSunday 16 August 202612 peakMonday 17 August 202614 peakTuesday 18 August 20269 peakWednesday 19 August 202614 peakThursday 20 August 202611 peakFriday 21 August 202610 peakSaturday 22 August 202611 peakSunday 23 August 202615 peakMonday 24 August 202617 peakTuesday 25 August 202615 peakWednesday 26 August 202615 peakThursday 27 August 202613 peakFriday 28 August 202613 peakSaturday 29 August 202613 peakSunday 30 August 202612 peakMonday 31 August 202612 peakTuesday 01 September 202610 peakWednesday 02 September 202611 peakThursday 03 September 202616 peakFriday 04 September 202613 peakSaturday 05 September 202612 peakSunday 06 September 202612 peakMonday 07 September 202614 peakTuesday 08 September 202616 peakWednesday 09 September 202610 peakThursday 10 September 202610 peakFriday 11 September 202613 peakSaturday 12 September 202615 peak
Daily peakEvery hourly sample

All time

66 months, April 2021 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.

06121925Apr 2021Mar 2022Feb 2023Jan 2024Dec 2024Nov 2025April 20213 monthly peakMay 20213 monthly peakJune 20215 monthly peakJuly 20213 monthly peakAugust 20215 monthly peakSeptember 20218 monthly peakOctober 202111 monthly peakNovember 20217 monthly peakDecember 20217 monthly peakJanuary 20227 monthly peakFebruary 20228 monthly peakMarch 20227 monthly peakApril 20229 monthly peakMay 20227 monthly peakJune 20227 monthly peakJuly 20229 monthly peakAugust 202212 monthly peakSeptember 202212 monthly peakOctober 202210 monthly peakNovember 202211 monthly peakDecember 20228 monthly peakJanuary 20238 monthly peakFebruary 20239 monthly peakMarch 202310 monthly peakApril 202311 monthly peakMay 202312 monthly peakJune 202313 monthly peakJuly 20239 monthly peakAugust 202311 monthly peakSeptember 20238 monthly peakOctober 202311 monthly peakNovember 202311 monthly peakDecember 202312 monthly peakJanuary 202415 monthly peakFebruary 202414 monthly peakMarch 202415 monthly peakApril 202416 monthly peakMay 202417 monthly peakJune 202417 monthly peakJuly 202416 monthly peakAugust 202419 monthly peakSeptember 202415 monthly peakOctober 202418 monthly peakNovember 202417 monthly peakDecember 202418 monthly peakJanuary 202519 monthly peakFebruary 202519 monthly peakMarch 202521 monthly peakApril 202519 monthly peakMay 202516 monthly peakJune 202517 monthly peakJuly 202517 monthly peakAugust 202517 monthly peakSeptember 202514 monthly peakOctober 202516 monthly peakNovember 202516 monthly peakDecember 202517 monthly peakJanuary 202623 monthly peakFebruary 202620 monthly peakMarch 202618 monthly peakApril 202617 monthly peakMay 202619 monthly peakJune 202621 monthly peakJuly 202616 monthly peakAugust 202617 monthly peakSeptember 202616 monthly peak
Monthly peak

The last four months

Show:

The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.

0591418July 2026August 2026September 2026October 2026July 202616 peak — daily detail belowAugust 202617 peak — hourly detail belowSeptember 202616 peak — hourly detail below
Monthly peakHas finer data

July 2026

31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

049131701 Jul06 Jul11 Jul16 Jul21 Jul26 Jul31 JulWednesday 01 July 202614 peakThursday 02 July 202613 peakFriday 03 July 202616 peakSaturday 04 July 202615 peakSunday 05 July 202615 peakMonday 06 July 202612 peakTuesday 07 July 202614 peakWednesday 08 July 202613 peakThursday 09 July 202615 peakFriday 10 July 202613 peakSaturday 11 July 202614 peakSunday 12 July 202615 peakMonday 13 July 202616 peakTuesday 14 July 202612 peakWednesday 15 July 20268 peakThursday 16 July 20269 peakFriday 17 July 202612 peakSaturday 18 July 20269 peakSunday 19 July 202613 peakMonday 20 July 202611 peakTuesday 21 July 20268 peakWednesday 22 July 202610 peakThursday 23 July 202612 peakFriday 24 July 202612 peakSaturday 25 July 202612 peakSunday 26 July 202610 peakMonday 27 July 202612 peakTuesday 28 July 202611 peakWednesday 29 July 202614 peakThursday 30 July 202610 peakFriday 31 July 202613 peak

August 2026

31 days as the curve, each the highest figure that day. Behind it, 162 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.

059141801 Aug06 Aug11 Aug16 Aug21 Aug26 Aug31 AugSaturday 01 August 202614 peakSunday 02 August 202615 peakMonday 03 August 202614 peakTuesday 04 August 202612 peakWednesday 05 August 202612 peakThursday 06 August 202616 peakFriday 07 August 202615 peakSaturday 08 August 202614 peakSunday 09 August 202613 peakMonday 10 August 202611 peakTuesday 11 August 202614 peakWednesday 12 August 202612 peakThursday 13 August 202610 peakFriday 14 August 202610 peakSaturday 15 August 202611 peakSunday 16 August 202612 peakMonday 17 August 202614 peakTuesday 18 August 20269 peakWednesday 19 August 202614 peakThursday 20 August 202611 peakFriday 21 August 202610 peakSaturday 22 August 202611 peakSunday 23 August 202615 peakMonday 24 August 202617 peakTuesday 25 August 202615 peakWednesday 26 August 202615 peakThursday 27 August 202613 peakFriday 28 August 202613 peakSaturday 29 August 202613 peakSunday 30 August 202612 peakMonday 31 August 202612 peak

September 2026

12 days as the curve, each the highest figure that day. Behind it, 119 hourly samples. Each dip is a night. Weekends are shaded.

049131701 Sep03 Sep05 Sep07 Sep09 Sep11 SepTuesday 01 September 202610 peakWednesday 02 September 202611 peakThursday 03 September 202616 peakFriday 04 September 202613 peakSaturday 05 September 202612 peakSunday 06 September 202612 peakMonday 07 September 202614 peakTuesday 08 September 202616 peakWednesday 09 September 202610 peakThursday 10 September 202610 peakFriday 11 September 202613 peakSaturday 12 September 202615 peak

October 2026

AudiobookConverter was released on 12 Apr, 2021.

Not out yet.There is nothing to draw for this month.
Nothing here is interpolated or estimated; where a sample is missing the line is broken.

Game information

Updated 12 Sep 2026, 22:18 UTC
App ID
1529240
Last updated
06 Jul 2026 build 24065493
Developer
Recoupler
Publisher
Recoupler
Release date
12 Apr, 2021
Platforms
Windows
Download size
131 MB
Install size
354 MB
Genres
Audio Production
Game modes
Controller support
Unknown

Features & support

Steam features

Controllers & input

Accessibility

Popular tags

Audio Production
About this gameFull description from Steam
History AudioBookConverter was originally designed as a simple and lightweight application to convert a set of mp3 files to single or set of m4b (aac) files to be played on your mobile device (or any device now). Now Over time AudioBookConverter evolved and currently can support conversion of most of the popular formats (mp3, wma, m4a, flac) to m4b, mp3, ogg. It also can handle existing m4b files and process them with chapters, artwork and other meta information. AudioBookConverter can work smart to find relevant artwork and can do advanced chapter management. Features Parallel encoding of files: more cores - faster results (unlike other legacy encoders which use single core from your "24-core beast") Parallel processing of conversions queue: prepare next book while encoding another Smart artwork support: combined from MP3 artwork and cover files from MP3 directory or copy and paste picture from internet Unicode tags support: keep tags in own language Flexible quality management: find balance between size and quality, managed by prebuilt and custom presets Instant preview: listen what you are going to encode Simple and lightweight user interface: convert a book with few clicks Advanced chapters support: combining multiple mp3 into single chapter re-import existing chapters from existing m4a/m4b loading chapters information from mp3 or cue files splitting monolithic file into chapters automatic naming of chapters based on metadata or filename of source files
System requirementsMinimum and recommended hardware

Minimum

Minimum: Requires a 64-bit processor and operating system OS: 64-bit Windows Storage: 200 MB available space Additional Notes: 2+ Cores i

Recommended

Recommended: Requires a 64-bit processor and operating system OS: Windows 10 64bit Storage: 200 MB available space Additional Notes: More processor cores is highly recommended

macOS

Minimum: OS: 64-bit (Intel) Storage: 300 MB available space Recommended: OS: 64-bit (Intel) Storage: 300 MB available space

Linux

Minimum: Recommended:
Supported languages1 languages
LanguageFull audio
English

A blank audio cell means full audio was not marked in the returned language list.

Screenshots & trailersScreenshots and trailers

Trailers

AchievementsTotal count and selected achievements

13 developer announcements, Aug 2021 to Dec 2025 · times in UTC

December

  1. Update 6.6.4

    Features: AAX and AA supportBug-fixes: Fixed chapter duration when importing from m4bFixed adding spaces at front of custom chapter namesFixed "Cut off frequencies higher than" setting always defaults to 4000Fixed Cannot change chapter…

    Patch notes

May

  1. Update 6.4.2

    Features: Added editing templates in settings Added splitting audio track at specfic points and at regular intervals Added a lot of tooltops to improve accessability of the application Bug-fixes: Fixed quality setting did not have effect…

    Patch notes

October

  1. Upgrade to 6.1.2 (MacOS)

    Same changes as windows

    Patch notes
  2. Upgrade to 6.1.2

    Upgrade ffmpeg to 4.4.1 Fixed issue not loading year from m4b Fixed issue not loading book number from m4b and ogg Fixed issue not loading artwork from binary stream in m4b Fixed issue of extra spaces in suggested file name Fixed issue of…

    Patch notes
  3. Upgrade to 6.1.2

    Upgrade ffmpeg to 4.4.1 Fixed issue not loading year from m4b Fixed issue not loading book number from m4b and ogg Fixed issue not loading artwork from binary stream in m4b Fixed issue of extra spaces in suggested file name Fixed issue of…

    Patch notes

December

  1. Release 6.0.0

    New Version 6.0.0 Replaced configuration text files with embedded database, which should positively impact on stability. Added different options for forcing re-enccoding: Always - re-encode everything, Lazy - no re-encoding for compatible…

    yermak
  2. Small improvements release for Windows

    - Added force re-encoding - Fixed losing 2nd+ artworks in m4b files

    Patch notes
  3. Regular BugFix for MacOS X

    - clean up temp directory - m4b file optimisation (smaller size, faster load) - force re-encoding (forcing to respect quality settings) - fixed losing artwork - minor technical improvements

    Patch notes
  4. Major BugFix for Windows

    - clean up temp directory - m4b file optimisation (smaller size, faster load) - upgraded to OpenJDK 17.0.1

    Patch notes

October

  1. Mac OS X First ever build

    - First ever MacOS X build. - Windows build no change.

    Patch notes

August

  1. Version fix

    version fix

    Patch notes
  2. Update to 5.5.26

    - Fixed preset issue

    Patch notes
  3. Update to version 5.5.25

    - Upgraded to FFMpeg 4.4 - Upgraded to OpenJDK 16.0.2 - Fixed result chapters have slightly wrong duration on some input files - Fixed artwork from previous conversion being added to next conversation if artwork scan process did not…

    Patch notes

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