processing/processing-sound

Implement start-to-finish on-the-fly playback for large audio files

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#88 opened on Sep 21, 2023

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enhancementhelp wanted

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Description

The current SoundFile implementation decodes and loads the entire content of the audio file into RAM, which is the only reliable way to allow low-level buffer access, editing and scrubbing.

A currently unsupported use case is straightforward on-the-fly playback of long audio files that are too big to be kept in memory. This should be feasible by implementing a wrapper around the current JavaSound decoding functionality in SoundFile and packing it inside a UnitGenerator that passes the incrementally decoded audio to JSyn for immediate playback. (Pausing and restarting could even be supported, just no scrubbing/skipping or editing.)

Contributor guide

Research direction
Implement a UnitGenerator subclass that decodes audio chunks using JavaSound and feeds them into JSyn's audio output.
Tech stack
java
Domain
audio video rtc
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45