OpenSebJ for Windows

Name: OpenSebJ
Rating: 3 (2 reviews)
Author: Evolving Software

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Editors’ Review

Download.com staffFebruary 26, 2026

OpenSebJ is a free, open-source audio sample mixer. It allows real-time mixing, customization of sample properties, and offers a multi-track composition environment.

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Pros
- Mixes 255 audio samples in real time.
- Adjust volume, pan, and frequency per sample.
- Customizable properties adjustable during playback.
- Includes DJ, scratch, and beat box tools.
- Provides a multi-track composition environment.
Cons
- Supports only wave audio format.
- Source code is under GPL license.
- No mention of advanced effects.

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Full Specifications

GENERAL

Release: May 31, 2006

Latest update: February 26, 2026

Version: 1

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows 10
Windows 2000
Windows XP

Additional Requirements: Windows 2000/XP/2003 Server, .Net Framework 2.0, DirectX9.0c

POPULARITY

Total Downloads: 15,261

Downloads Last Week: 1

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Last Updated

User Reviews

3/5

2 User Votes

Powerful and Easy to Use - Pro Production Quality
DJHPAugust 18, 2006
Pros
OpenSebJ is easy to use and a very powerful program. It is a 100% fully functional production quality tool. OpenSebJ can be used as a complete software sampler system, including a sequencer, beat box, scratching facilities, simulated midi interface (use the normal PC keyboard & assign sample's to keys and then tap out a beat.) Many features are completely unique and as they are bundled together they are a DJ (DJing / DJ's) dream. It even includes decks for loop beats to be assigned to and spun, scratch and remixed. <p> <p>Updates are thick and fast and as it is Open Source, completely free and has a great support base including forums newsletters etc.
Cons
A manual would help but it's straight forward to use anyway.
Summary
poor software, poorly organized and time-consuming download
janlig98July 1, 2006
Pros
none
Cons
long and redirected many times download, then the software had no help file, it was also nonfunctional! WHY did U put this on your website CNET.com?! Oh yea, while uninstalling i found 20 adware files.
Summary

Developer’s Description

By Evolving Software

Mix, play, customize properties of real-time audios.

OpenSebJ is a free real time audio sample mixer. The source code for OpenSebJ is released under the GNU General Public License. OpenSebJ feature's: Supports loading of 255 Audio samples (wave format), which can be played in real time. Sample properties such as, Volume, Pan and Frequency can be adjusted individually for each sample (even during mid play). A composition tool is provided, presented in a multi-track environment. DJ, Mix, Scratch, Beat Box and Sample tools included.

OpenSebJ for Windows

Editors’ Review

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Delay Time Calculator

Pros

Cons