diff --git a/backend/parakeet/Dockerfile b/backend/parakeet/Dockerfile
index f11256b76eb..01029f63624 100644
--- a/backend/parakeet/Dockerfile
+++ b/backend/parakeet/Dockerfile
@@ -17,13 +17,36 @@ WORKDIR /app
 RUN pip install --no-cache-dir --no-deps --force-reinstall \
     "nemo_toolkit[asr] @ git+https://github.com/beastoin/NeMo.git@68d99a17944181452205dc60da21e82bf3647054"
 
-# NGC's custom torch ABI is incompatible with ALL standard torchaudio
-# wheels (PyPI, cu128 index).  NeMo imports torchaudio at module level
-# (via squim metrics) but parakeet never calls those functions.
-# Create a lightweight stub that satisfies `import torchaudio`.
-RUN mkdir -p /usr/local/lib/python3.12/dist-packages/torchaudio && \
-    printf '__version__ = "stub"\n' > \
-    /usr/local/lib/python3.12/dist-packages/torchaudio/__init__.py
+# NGC torch ABI is incompatible with standard torchaudio C extensions.
+# Install torchaudio --no-deps for the pure-Python compliance.kaldi module
+# (wespeaker needs kaldi.fbank for mel filterbank features), then patch
+# __init__.py to skip the C extension loader and only expose compliance.
+RUN pip install --no-cache-dir --no-deps torchaudio && \
+    printf '__version__ = "2.11.0-ngc-compat"\nfrom . import compliance\nfrom . import functional\n' > \
+    /usr/local/lib/python3.12/dist-packages/torchaudio/__init__.py && \
+    printf '_IS_TORCHAUDIO_EXT_AVAILABLE = False\ndef fail_if_no_align(*a, **kw): pass\ndef fail_if_no_sox(*a, **kw): pass\ndef fail_if_no_ffmpeg(*a, **kw): pass\ndef fail_if_no_soundfile(*a, **kw): pass\ndef fail_if_no_kaldi(*a, **kw): pass\n' > \
+    /usr/local/lib/python3.12/dist-packages/torchaudio/_extension/__init__.py
+
+# pyannote.audio.core.task imports torch_audiomentations for training-time
+# data augmentation. We only use Model + Inference (embedding extraction),
+# never the training pipeline. Stub the package with all symbols pyannote needs.
+RUN mkdir -p /usr/local/lib/python3.12/dist-packages/torch_audiomentations/core \
+             /usr/local/lib/python3.12/dist-packages/torch_audiomentations/augmentations \
+             /usr/local/lib/python3.12/dist-packages/torch_audiomentations/utils && \
+    printf '__version__ = "stub"\nclass Identity:\n    pass\n' > \
+    /usr/local/lib/python3.12/dist-packages/torch_audiomentations/__init__.py && \
+    printf '' > \
+    /usr/local/lib/python3.12/dist-packages/torch_audiomentations/core/__init__.py && \
+    printf 'class BaseWaveformTransform:\n    pass\n' > \
+    /usr/local/lib/python3.12/dist-packages/torch_audiomentations/core/transforms_interface.py && \
+    printf '' > \
+    /usr/local/lib/python3.12/dist-packages/torch_audiomentations/augmentations/__init__.py && \
+    printf 'class Mix:\n    pass\n' > \
+    /usr/local/lib/python3.12/dist-packages/torch_audiomentations/augmentations/mix.py && \
+    printf '' > \
+    /usr/local/lib/python3.12/dist-packages/torch_audiomentations/utils/__init__.py && \
+    printf 'def from_dict(*a, **kw):\n    pass\n' > \
+    /usr/local/lib/python3.12/dist-packages/torch_audiomentations/utils/config.py
 
 # Extra deps not in the NGC image.
 # pyannote.audio and torch-dependent deps installed --no-deps to prevent
@@ -37,11 +60,15 @@ RUN pip install --no-cache-dir \
     "prometheus-client>=0.21.0" \
     "soundfile>=0.13.0"
 
-RUN pip install --no-cache-dir --no-deps "pyannote.audio>=3.1.0" && \
+# pyannote.audio + deps. Post-install: stub telemetry (needs opentelemetry
+# OTLP exporter which we don't need for inference-only usage).
+RUN pip install --no-cache-dir --no-deps "pyannote.audio>=3.1.0,<4.0" && \
     pip install --no-cache-dir --no-deps \
     "pyannote.core" "pyannote.database" "pyannote.pipeline" \
     "speechbrain" "asteroid-filterbanks" "einops" "semver" \
-    "hf_transfer" "tensorboardX"
+    "hf_transfer" "tensorboardX" && \
+    printf 'def set_opentelemetry_log_level(*a, **kw): pass\ndef set_telemetry_metrics(*a, **kw): pass\ndef track_model_init(*a, **kw): pass\ndef track_pipeline_init(*a, **kw): pass\ndef track_pipeline_apply(*a, **kw): pass\n' > \
+    /usr/local/lib/python3.12/dist-packages/pyannote/audio/telemetry/__init__.py
 
 COPY backend/parakeet/ .