Bug 852 – Noise Reduction preview failure when track rate is different from project rate

••• Introduction •••
••• Keywords •••

Audacity 3.0.3 development began 19th April 2021

Audacity Bugzilla

Bug 852 - Noise Reduction preview failure when track rate is different from project rate


Summary:	Noise Reduction preview failure when track rate is different from project rate

Status:	RESOLVED FIXED

Product:	Audacity
Classification:	Unclassified
Component:	Built-in FX
Version:	2.1.0
Hardware:	PC All

Importance:	P3 RepeatableAll
Assigned To:	Default Assignee for New Bugs

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2015-02-02 23:05 UTC by Steve Daulton
Modified:	2020-08-21 09:38 UTC (History)
CC List:	4 users (show)

See Also:	1502
Steps To Reproduce:	1. Create a track. 2. Change the project rate 3. Attempt to use noise reduction
Release Note:	GROUP: Effects and Analysis * '''Noise reduction:''' Preview is not possible if the sample rate of the project is different from the rate of the track to be processed - an error message appears "Sample rate of the noise profile must match that of the sound to be processed" (even if that condition is met). Providing the noise profile rate does match the track rate, you can still apply the effect. Alternatively, change the project rate temporarily to the rate of the track.
First Git SHA:
Group:	---
Workaround:
Closed:	2020-08-21 00:00:00

Flags:	stevethefiddle: Regression+ petersampsonaudacity: Test‑OK‑Win+ petersampsonaudacity: Test‑OK‑Mac+

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Description Steve Daulton 2015-02-02 23:05:43 UTC

If the track sample rate does not match the project rate, Noise Reduction preview refuses to play with an error message saying that the track sample rate does not match the profile sample rate.

Tested only on Linux but likely to be all platforms. P4?

Comment 1 James Crook 2015-02-03 08:31:53 UTC

Expedited initial categorisation of bug.  PX->P4.  It's clear it doesn't hold up release.

Comment 2 Gale Andrews 2015-02-03 19:34:51 UTC

It's on all platforms and a regression as Steve noted, so I'm promoting to P3. The trigger scenario is not at all unusual for people importing files.

Comment 3 Steve Daulton 2015-02-03 19:47:46 UTC

(In reply to comment #2)
If the "steps to reproduce" are intended to be the "Release note", it may be worth mentioning that, as a workaround, if you (temporarily) change the project rate to match the track sample rate, the preview will play correctly.

Comment 4 Gale Andrews 2015-02-03 21:03:41 UTC

(In reply to comment #3)
Moved the release note to the correct place and added the other workaround, thanks.

Comment 5 James Crook 2017-08-11 09:02:54 UTC

*** STEPS UPDATED ***

Comment 6 Peter Sampson 2020-08-21 09:36:22 UTC

Testing on W10 with Audacity 3.0.0 25ddfc7

This now appears to work fine on W10
a) the Noise Reduction get noise profile works
b) Preview than works on next use
c) Applying the effect works

Comment 7 Peter Sampson 2020-08-21 09:38:02 UTC

Also works fin on macOS 10.15.6 with Audacity 3.0.0 25ddfc7

a) the Noise Reduction get noise profile works
b) Preview than works on next use
c) Applying the effect works