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README.md

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 license: cc-by-nc-nd-4.0
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+## Description
+The data set contains 344 American English speakers' speech data, all of whom are American locals. 50 sentences for each speaker. The valid data is 9.7 hours. It is recorded in quiet environment. The contents cover in-car scenario, smart home and speech assistant.
+
+For more details, please refer to the link: https://www.nexdata.ai/dataset/79?source=Huggingface
+
+
+## Format
+16kHz, 16bit, uncompressed wav, mono channel
+
+## Recording environment
+quiet indoor environment, without echo
+
+## Recording content (read speech)
+smart car; smart home; speech assistant
+
+## Speakers
+344 Americans, 55% of which are male
+
+## Device
+Android mobile phone, iPhone
+
+## Language
+American English
+
+## Transcription content
+text, time point of speech data, 2 noise symbols, 5special identifiers
+
+## Accuracy rate
+95% (the accuracy rate of noise symbols and other identifiers is not included)
+
+## Application scenarios
+speech recognition, voiceprint recognition
+
+# Licensing Information
+Commercial License