KARA Logo KARA
Innovating Offline Playback

Hi, I'm Ervin Jabien

Tech-Driven Developer who loves Web developing, mobile applications, and engineering digital innovation. Creator of KARA, the studio-quality offline karaoke client.

KARA Engine Playing MIDI Synthesizer 44.1kHz

About Sendlovex

Ervin Jabien

Ervin Jabien

@Sendlovex

Tech-Driven Guy who loves Web developing and Innovation.

Flutter Dart HTML/CSS Javascript Git & GitHub Mobile Audio

Engineering Experiences

I focus on building performant, low-latency applications with clean and user-friendly user interfaces. My primary specialization is utilizing the Flutter cross-platform toolkit to deliver studio-quality audio experiences on mobile devices. I enjoy working on structural parsing (like MIDI/KAR file structures) and high-fidelity rendering engines.

Core Competencies

Mobile Apps

Cross-platform mobile applications using Dart/Flutter with low-level native modules integration.

Web Development

Building beautiful, responsive, and secure web applications utilizing modern HTML5, CSS3, Javascript, and responsive design frameworks.

Audio Engines

Working with SoundFont (.sf2) synthesizers, customized instrument routing, and real-time audio mixers.

KARA Offline Player

Studio Quality Portable Karaoke

KARA is a mobile client designed for singers and karaoke enthusiasts. It functions entirely offline, synthesizing files in real-time, providing flawless synchronizations, and offering customization tools for mixing sound structures.

Real-time Synthesis

Loads standard MIDI and KAR files. Renders tracks using local soundbanks directly on the device.

Custom SoundFonts (.sf2)

Upload your own soundbanks to completely alter the instruments, reverb, chorus, and balance.

Instrument Routing Map

Redirect channels manually to different synthesizer banks. Perfect for tweaking background tracks.

Get KARA on GitHub
KARA Player Screen