Bug 1298 – Windows: Regular Interval Labels on multiple tracks produces multiple labels

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Audacity 3.0.3 development began 19th April 2021

Audacity Bugzilla

Bug 1298 - Windows: Regular Interval Labels on multiple tracks produces multiple labels


Summary:	Windows: Regular Interval Labels on multiple tracks produces multiple labels

Status:	RESOLVED FIXED

Product:	Audacity
Classification:	Unclassified
Component:	Built-in FX
Version:	2.1.2
Hardware:	PC Windows 10

Importance:	P4 Repeatable
Assigned To:	Default Assignee for New Bugs

URL:
Keywords:

Depends on:
Blocks:
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Reported:	2016-01-10 07:26 UTC by Peter Sampson
Modified:	2018-11-10 05:48 UTC (History)
CC List:	5 users (show)

See Also:
Steps To Reproduce:	1) new project 2) generate 30 second chirp 3) add new mono track 4) generate 30 second tone in that track 5) select a section from both tracks 6) Analyze > Regular Interval Labels 7) Choose no. of labels method and 5 labels 8) result: two sets of five labels
Release Note:
First Git SHA:
Group:	LabelTrack
Workaround:
Closed:

Flags:	petersampsonaudacity: Test‑OK‑Win+

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Description Peter Sampson 2016-01-10 07:26:23 UTC

When you run Regular Interval Labels on a selection of multi-tracks the output is a single label track but with multiple lables stacked abive each other, one per track.  Only a single set of labels is required.

This was also the case in 2.1.0 back to 2.0.0 (not tested further back)

Comment 1 Steve Daulton 2016-01-10 07:35:35 UTC

The root of this problem is that "Regular Interval Labels" is an "Analyze" type effect. Analyze effects require a selection as the purpose of an Analyze effect is to "analyze" the selected audio. Regular Interval Labels does not analyze, does not  process and does not generate audio, so really it does not fit in any of the current effect "types". Ideally this effect would be one of a new "type" of effect that does not require selected audio - perhaps a "tools" type plug-in.

For now, the bug as stated may be fixed by skipping processing for all but the final track. I'll assign this to myself.

Comment 2 Steve Daulton 2018-10-22 18:57:41 UTC

I suspect this was already fixed before Regular Interval Labels broke with bug 2014, but it should certainly be fixed in:

https://github.com/audacity/audacity/commit/72fbf1b

Comment 3 Peter Sampson 2018-11-06 10:13:26 UTC

Tested on W10 with audacity-2.3.1-alpha-207-4c76e598d5859dc172e063d37287cc510fa7850f

Now creates just one set of 5 labels following teh Steps to reproduce.

Looks to be OK on Windows

Comment 4 Peter Sampson 2018-11-10 05:45:43 UTC

Tests OK on Mac too