Game SFX Ends Too Soon? Check Playback Rate Before Regenerating
Keep the exported sound fixed while checking playback speed, segment limits and stop calls. A shorter output is not proof that generation trimmed the asset.


A sound lasts about two seconds in a player but finishes in roughly one second inside the game. Before generating a longer version, confirm the project is using the same file and check how it is played. Source duration, playback rate, loop points and stop logic are separate conditions.
Preserve an unchanged reference
Keep the chosen variant and exported file from Tooliva's SFX tool. Record its identity, bytes or hash, decoded content duration and the path actually loaded by the project. A similarly named alternative is not a same-file comparison.
Compare unchanged playback with the game's output in a controlled environment. Record whether the game stops early, retriggers the sound or plays only a segment. An earlier ending alone does not establish that playback speed changed.
Identify the parameter in the actual audio system
The MDN playbackRate reference describes an AudioBufferSourceNode parameter whose default is 1.0. Lower values play more slowly, higher values play faster, and a non-default value involves resampling. It is a playback-node setting, not a file-size measure or the output device's fixed sample rate.
This Web Audio contract does not define every Unity, Cocos, Godot or middleware control. Ask the integrator to identify the effective setting in the receiving project. The Tooliva interface is not assumed to expose this particular property.
Use a timing example with explicit assumptions
Suppose a complete buffer contains exactly two seconds of content, the rate stays at 2, and there is no loop, segment restriction, additional rate processing or early stop. Traversing that content takes about one second. At a constant rate of 0.5, it takes about four seconds. These are conditional calculations, not measurements of a Tooliva export.
A changing rate cannot be summarized by dividing the whole duration by an arbitrary single value. Reverb or delay may leave an output tail after the source finishes. Distinguish reaching the end of the buffer from the final output becoming quiet.
Collect four pieces of integration evidence
- The file actually loaded and the decoded buffer duration.
- The effective rate, including automation or later code changes.
- Any loop, segment boundary, stop call or repeated source creation.
- Whether the same content still ends early at the project's intended normal rate.
Change one confirmed condition at a time in a test copy. Editing a sample-rate label to an arbitrary number is not the same operation as deliberately resampling the content, and it can invalidate the original comparison.
Verify speed before judging the sound design
If the effective rate matches the design, investigate actual trimming, stop behavior and variant selection. Some designs intentionally accelerate a sound; 1.0 is not the only valid artistic choice. Keep the intended response alongside the observed result.
Retest the transient, tail and repeated triggering through the game's real output path. For looping positions, use the separate guide to seconds, milliseconds and sample frames instead of changing loop units during a speed investigation. Equal duration does not establish equal loudness or complete audio quality, and no target-game audio measurement was performed here.
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