diff --git a/doc/CHANGELOG.md b/doc/CHANGELOG.md
index c6aa20e..4be3cb7 100644
--- a/doc/CHANGELOG.md
+++ b/doc/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+- Revert "fix" from 3.4.2 because audio is actually needed with 
+  'birdsong-recognition-dataset', to get sampling rate when we convert
+  from sample number to seconds
+  [#256](https://github.com/NickleDave/crowsetta/pull/256).
+
 ## 3.4.2
 ### Fixed
 - Remove exceptions raised by 'birdsong-recognition-dataset' format when `wavpath`