Merge dev

CHANGELOG.md

@@ -7,6 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.2.13] - 2026-04-06
+
+### Changed
+
+- Changed sigmoid function to match birdnet_analyzer by @Josef-Haupt
+
+### Bugfixes
+
+- Fixed issue #29
+
 ## [0.2.12] - 2026-02-22
 
 ### Added
@@ -242,7 +252,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Initial release
 
-[Unreleased]: https://github.com/birdnet-team/birdnet/compare/v0.2.12...HEAD
+[Unreleased]: https://github.com/birdnet-team/birdnet/compare/v0.2.13...HEAD
+[0.2.13]: https://github.com/birdnet-team/birdnet/compare/v0.2.12...v0.2.13
 [0.2.12]: https://github.com/birdnet-team/birdnet/compare/v0.2.11...v0.2.12
 [0.2.11]: https://github.com/birdnet-team/birdnet/compare/v0.2.10...v0.2.11
 [0.2.10]: https://github.com/birdnet-team/birdnet/compare/v0.2.9...v0.2.10

docs/conf.py

@@ -9,7 +9,7 @@
 project = "birdnet"
 copyright = "2026, Stefan Taubert"
 author = "Stefan Taubert"
-release = "0.2.12"
+release = "0.2.13"
 
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "birdnet"
-version = "0.2.12"
+version = "0.2.13"
 description = "A Python library for identifying bird species by their sounds."
 readme = "README.md"
 requires-python = ">=3.11, <3.14"

src/birdnet/acoustic/inference/core/prediction/prediction_worker.py

@@ -116,7 +116,8 @@ def _get_block(
       assert self._sigmoid_sensitivity is not None
       infer_result = flat_sigmoid_logaddexp_fast(
         infer_result,
-        sensitivity=-self._sigmoid_sensitivity,
+        sensitivity=-1.0,
+        bias=self._sigmoid_sensitivity,
       )
 
     invalid_mask = (infer_result < self._thresholds) | self._blacklist

src/birdnet/acoustic/inference/process_manager.py

@@ -367,6 +367,7 @@ def join(self) -> None:
       self._perf_tracker_process = None
       logger.debug("Performance tracker finished.")
 
+    if self._res.stats_resources.use_callback:
       logger.debug("Joining dispatcher thread...")
       assert self._progress_dispatcher_thread is not None
       self._progress_dispatcher_thread.join()

src/birdnet_tests/issues/test_issue29.py

@@ -0,0 +1,45 @@
+import birdnet
+
+
+def test_issue_29() -> None:
+  target = "example/soundscape.wav"
+  top_k = None
+  batch_size = 1
+  prefetch_ratio = 3
+  overlap_duration_s = 0.0
+  bandpass_fmin = 0
+  bandpass_fmax = 15000
+  sigmoid_sensitivity = 1.0
+  speed = 1.0
+  default_confidence_threshold = 0.25
+  custom_species_list = None
+  progress_callback = None
+  show_stats = "progress"
+  n_workers = None
+  n_producers = 1
+  apply_sigmoid = True
+
+  model = birdnet.load(
+    "acoustic",
+    "2.4",
+    "tf",
+  )
+
+  model.predict(
+    target,
+    top_k=top_k,
+    batch_size=batch_size,
+    prefetch_ratio=prefetch_ratio,
+    overlap_duration_s=overlap_duration_s,
+    bandpass_fmin=bandpass_fmin,
+    bandpass_fmax=bandpass_fmax,
+    sigmoid_sensitivity=sigmoid_sensitivity,
+    speed=speed,
+    default_confidence_threshold=default_confidence_threshold,
+    custom_species_list=custom_species_list,
+    progress_callback=progress_callback,
+    show_stats=show_stats,
+    n_workers=n_workers,
+    n_producers=n_producers,
+    apply_sigmoid=apply_sigmoid,
+  )