791 Hours of Multi-Channel Far-Field Mandarin Conversation Speech Data by Mobile Phone

Mandarin

Conversation

Far-field voice

791 Hours of Multi-Channel Far-Field Mandarin Conversation Speech Data by Mobile Phone, collected from dialogues based on given topics, covering dozens of generic domain. Transcribed with text content, speaker's ID, gender and other attributes. Our dataset was collected from extensive and diversify speakers(1,126 people in total), geographicly speaking, enhancing model performance in real and complex tasks. Quality tested by various AI companies. We strictly adhere to data protection regulations and privacy standards, ensuring the maintenance of user privacy and legal rights throughout the data collection, storage, and usage processes, our datasets are all GDPR, CCPA, PIPL complied.

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Specifications

Format

16kHz, 16bit, uncompressed wav, mono channel;

Recording Distance

Three devices simultaneously recorded at 1 meter, 3 meters, and 5 meters from the sound source.

Recording Environment

quiet indoor environment, without echo;Includes rooms of four different sizes.

Recording content

dozens of topics are specified, and the speakers make dialogue under those topics while the recording is performed;

Demographics

1126 speakers; balanced gender ratio among speakers, with age distribution ranging from 18 to 60 years old;

Annotation

extract and annotate individual sentences with their start and end timestamps, speaker identification, and spoken text content; noise annotation;

Device

Android phones, iPhones;

Language

Mandarin;

Application scenarios

speech recognition; voiceprint recognition;

Accuracy rate

character accuracy rate of 99%.

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