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End of preview. Expand in Data Studio
SAVE: paper split
This repository contains the paper's selected 35,768 synthetic scenes: 32,768 training, 1,000 validation and 2,000 test scenes. It is a subset of the larger SAVE v2 release, not an 80,000-scene training release. The training subset covers 240 speakers, 16,065 source clips and 6,000 acoustic configurations, totaling approximately 119.42 mixture-hours.
Each scene includes 16 kHz six-channel mixture audio, two source signals, direct references, two 25 fps mouth-crop sequences with validity indicators, localization labels and scene metadata. The reference microphone geometry is a six-channel circular array of radius 3.5 cm. Synthetic microphone response, timing, visual and environmental perturbations are included; they do not establish calibration to an arbitrary physical device.
Format
manifests/{tr,cv,tt}.jsonl identifies each scene by a relative shards/<split>-<number>.pack@<offset> location. At that offset, an unsigned 64-bit little-endian length precedes a ZIP_STORED scene record. record_sha256 hashes the record payload; READY.json contains split and shard hashes. original_index retains the original parent-release index. Scene media and labels are preserved byte-for-byte; the manifest locations are made relative.
The SAV-BandNet implementation includes the reader and full-training/test commands. Packed records avoid excessive small-file operations. Do not treat the .pack files as conventional ZIP archives without reading their record offsets.
Evaluation scope
The validation and test splits have been repeatedly inspected during development. They are not untouched confirmation sets. Preserve split identities and report the exact checkpoint, window configuration, waveform normalization and metric definition when comparing methods. Full-scene SI-SNR and overlap-only SI-SNR are different measurements.
Source assets and terms
The synthetic release derives from existing audiovisual speech, impulse-response and noise resources. Source metadata is retained within scene records. Synthesis and packaging do not replace the original assets' licenses or participant permissions. Retained notices and provenance accompany the repository; no single permissive license is asserted for every underlying asset, and commercial-use clearance is not established by this release.
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