Author: Algoriffix

  • Transkr V4 is here

    Today we’re releasing Transkr V4.

    V4 brings together a substantial amount of development in the Transkr engine since the previous release, along with new capabilities that expand what you can do with a transcription. The result is a more capable Transkr for real-time performance, recorded audio, file conversion, MIDI and musical notation.

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  • When Guitarists Meet Audio-to-MIDI in Real-Time

    Showcasing modern audio-to-MIDI technology at GotGuitars 2026.

    What happens when a guitar performance stops being just sound and becomes editable musical structure?

    That question became the focus of a small live workshop hosted by Algoriffix at Gothenburg’s largest guitar fair, GotGuitars.

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  • Towards Nonnegative Autoencoders

    Deep convolutional architectures with multiplicative factor updates.

    Deep learning did not emerge from a single breakthrough. Long before today’s large-scale AI systems became dominant, researchers were already exploring multilayer representations, convolutions, sparse coding, and hierarchical feature extraction across several overlapping research traditions (see also Before Music AI Became a Commodity).

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  • Before Music AI Became a Commodity

    From acoustic vocabularies to online musical inference.

    Today, much of music AI is dominated by very large models trained on enormous datasets. In many cases, these systems treat audio primarily as a statistical prediction problem: enough data, enough parameters, enough compute, and useful behaviour eventually emerges.

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  • Beyond Big Data: A Different Philosophy for Intelligent Music Technology

    Why Algoriffix prioritises structured models, online optimisation, and local intelligence over massive end-to-end systems.

    Much of modern artificial intelligence is built on the assumption that larger models and larger datasets inevitably lead to better systems. In many areas, this approach has produced remarkable results. Music technology, however, presents a somewhat different problem.

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  • Time, Frequency, and the Limits of Real-Time Polyphonic Pitch Detection

    Why latency remains one of the hardest problems in modern audio-to-MIDI systems.

    Latency remains one of the central challenges in real-time audio-to-MIDI systems, not because modern computers are too slow, but because musical information itself takes time to emerge from sound.

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  • How to Convert Your Guitar to MIDI in Real Time — Without Special Hardware

    Turning a standard guitar signal into musical control data is far more difficult than it first appears.

    Real-time guitar-to-MIDI conversion has fascinated musicians for decades. The idea is simple in principle: play a guitar and control synthesizers, virtual instruments, or notation software directly from the audio signal.

    In practice, however, the problem is remarkably difficult.

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