Update README.md

README.md

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-license: cc-by-nc-4.0
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+---
+task_categories:
+- audio-to-audio
+size_categories:
+- 100B<n<1T
+---
+# SFR-v1: FM Reception Speech Dataset
+
+## Dataset Summary
+
+**SFR-v1** consists of segmented 10-second FM reception audio clips accompanied by frame-level RSSI (Received Signal Strength Indicator) traces. This dataset is designed to support research in hybrid digital-analog communication, channel-aware audio recovery, speech enhancement, and FM channel modeling. It includes multiple content types (news, music, speech, male and female voices) under varying channel quality conditions.
+
+## Audio Parameters
+
+* **Sample rate**: 24 kHz
+* **Bit depth**: 16-bit PCM
+* **Channels**: Mono
+
+## RSSI Parameters
+
+* **Acquisition**: a probe signal used solely for RSSI acquisition and not part of the audio
+* **Original interval**: \~60 ms per measurement (with timestamp)
+* **Resampling**: interpolated to 50 ms per step, yielding 200 RSSI values per 10-second clip
+* **Raw range**: approximately –65 dBm to –105 dBm
+* **Normalization**: linearly mapped to \[4, 20], where higher values indicate poorer channel quality
+* **Alignment**: RSSI sequences are frame-aligned with each audio segment
+
+## License
+
+Released under CC-BY-NC 4.0.
+
+## Citation
+
+Citation will be provided upon publication.