sl-perception 1878b09eee feat: Add audio direction estimator (Issue #430)
Implements GCC-PHAT beamforming for sound source localization via Jabra mic.
- GCC-PHAT cross-correlation for direction of arrival (DoA) estimation
- Voice activity detection (VAD) using RMS energy + smoothing
- Stereo/quadrophonic channel support (left/right/front/rear estimation)
- ROS2 publishers: /saltybot/audio_direction (Float32 bearing), /saltybot/audio_activity (Bool VAD)
- Configurable parameters: sample_rate, chunk_size, publish_hz, vad_threshold, gcc_phat_max_lag
- Integration-ready for multi-person tracker speaker tracking

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-03-05 08:53:25 -05:00

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<?xml version="1.0"?>
<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
<package format="3">
<name>saltybot_audio_direction</name>
<version>0.1.0</version>
<description>
Audio direction estimator for sound source localization via Jabra microphone.
Implements GCC-PHAT beamforming for direction of arrival (DoA) estimation.
Publishes bearing (degrees) and voice activity detection (VAD) for speaker tracking integration.
Issue #430.
</description>
<maintainer email="sl-perception@saltylab.local">sl-perception</maintainer>
<license>MIT</license>
<buildtool_depend>ament_python</buildtool_depend>
<depend>rclpy</depend>
<depend>std_msgs</depend>
<depend>sensor_msgs</depend>
<depend>geometry_msgs</depend>
<exec_depend>python3-numpy</exec_depend>
<exec_depend>python3-scipy</exec_depend>
<exec_depend>python3-sounddevice</exec_depend>
<test_depend>pytest</test_depend>
<export>
<build_type>ament_python</build_type>
</export>
</package>