Troubleshooting#

Service Will Not Start#

  • Confirm port 8010 is not already in use:

    ss -ltnp | grep 8010

  • Confirm the active config file is valid YAML. The service loads config.yaml, then applies AUDIO_ANALYZER__... environment overrides. The same config.yaml is used by both standalone and container runs (bind-mounted into the container).

First Startup Is Slow#

This is expected. On first run the service may download or export model assets to models/ and the Hugging Face cache. Subsequent starts reuse the cached artifacts.

health Endpoint Fails#

  • For Docker: check docker compose ps and docker compose logs -f audio-analyzer.

  • For standalone: confirm the process is running and bound to the expected host/port (defaults 127.0.0.1:8010).

  • If you are behind a corporate proxy, pass --noproxy '*' to curl when hitting 127.0.0.1.

GPU Path Is Not Used#

  • The OpenVINO GPU device requires the Intel/OpenVINO host GPU runtime installed on the host (separate from the Python dependencies).

  • For the container, /dev/dri must be exposed to the container (default in docker-compose.yml).

NPU Path Is Not Used#

  • Confirm the host exposes the NPU device node you intend to map. On Meteor Lake systems this is commonly /dev/accel/accel0.

  • Set ACCEL_MOUNT_PATH to that host device node for Compose runs.

  • Keep ZE_ENABLE_ALT_DRIVERS=libze_intel_npu.so in the container environment.

  • Make sure the container runs with the host render group via RENDER_GID so the app user can access the Intel NPU device node.

  • If core.available_devices still reports only CPU, re-check that you are using the NPU-capable image built from the updated Dockerfile and that the host Intel NPU driver stack is installed and loaded.

Permission Errors on Mounted Folders#

The container runs as UID/GID 1000:1000 (baked into the image). Model, chunk, storage, and Hugging Face cache data are kept in named Docker volumes (audio_analyzer_{models,chunks,storage,cache}) initialized with that ownership, so this rarely fails on a fresh install. If you do see:

PermissionError: [Errno 13] Permission denied: '/app/audio_analyzer/storage/...'

you are most likely reusing volumes that were initialized by a previous run as a different UID (for example by an older root-only run). Reset them:

docker compose down
docker volume rm \
  audio-analyzer_audio_analyzer_models \
  audio-analyzer_audio_analyzer_chunks \
  audio-analyzer_audio_analyzer_storage \
  audio-analyzer_audio_analyzer_cache
docker compose up -d

Microphone / GET /devices Returns Empty#

  • Confirm ALSA capture devices exist on the host:

    arecord -l

  • For the container, uncomment the /dev/snd device mapping in docker-compose.yml.

FFmpeg or libsndfile Errors (Standalone)#

Install the required host packages:

sudo apt-get update
sudo apt-get install -y ffmpeg alsa-utils libsndfile1

Sessions / Transcripts Not Persisting#

Session files live under storage/<session_id>/. Confirm that directory is writable by the process and is on a persistent volume in container deployments.

Supporting Resources#