Tailored Data Services for Conversational AI Service

Nexdata supports tailored customer service speech data collection according to language, timbre, style, and industry, and provides data processing such as information extraction, classification and annotation for the massive raw data.

Multi-language

Support speech data collection in accented English, code-switching, Chinese dialects, etc.

Multi-domain

Support real scene customer service data collection in multiple industries such as finance, insurance, and e-commerce.

Speech Segmentation

Speech segmentation for long audio, noise, valid/invalid audio.

Speech Annotation

Support multi-paragraph transcription annotation for long and short natural speech audio.

Emotion Annotation

Support positive or negative emotions information annotation of speaker's voice.

Compliance & Security

Nexdata place the utmost emphasis on data security and client trust. We follows Personal Information Protection Act, GDPR, CCPA, PIPC and HIPAA regulations. we have also achieved ISO 27001,ISO 27701 and ISO 9001 qualifications for security and regulatory compliance. Nexdata delivers unparalleled data security, earning the trust of our clients through our adherence to these globally recognized standards.

Case Studies

USE CASE：Speech Recognition for Cantonese Customer Service.
CHALLENGE：Client hopes to enhance the accuracy of the existing intelligent customer service speech recognition technology.
SOLUTION：Nexdata annotated 1000 hours of Cantonese customer service speech data at 95% sentence accuracy rate. In order to solve the consistency of Cantonese characters, Nexdata estabilished a unified Cantonese lexicon.

Speech Recognition for Mandarin Customer Service

USE CASE：Speech Recognition for Mandarin Customer Service.
CHALLENGE：Client is developing intelligent customer service speech recognition technology from scratch.
SOLUTION：Nexdata provides systematic data solutions by sorting out customer scenarios, including 5,000 hours of ready-made Mandarin voice and natural conversation voice data sets, and 1,000 hours of annotated voice data sets for specific scenarios, helping customers create intelligent customer service products from scratch. , it only took a month to be put into use.

USE CASE：Chatbot Knowledge Base Optimization.
CHALLENGE：Client wants to optimize the knowledge base of the chatbot in APP to improve the service quality.
SOLUTION：Nexdata expands and optimizes the new knowledge points, and deletes, adds and optimizes the similar problems in the knowledge base. We have completed the compilation of about 230,000 knowledge points and each point has been increased at least 30 similar questions.

Recommended Dataset

10.4 Hours - Japanese Synthesis Corpus-Female

10.4 Hours - Japanese Synthesis Corpus-Female. It is recorded by Japanese native speaker, with authentic accent. The phoneme coverage is balanced. Professional phonetician participates in the annotation. It precisely matches with the research and development needs of the speech synthesis.

tts japan female

10 People - British English Average Tone Speech Synthesis Corpus

10 People - British English Average Tone Speech Synthesis Corpus. It is recorded by British English native speakers, with authentic accent. The phoneme coverage is balanced. Professional phonetician participates in the annotation. It precisely matches with the research and development needs of the speech synthesis.

TTS British English Average Tone

19.46 Hours - American English Speech Synthesis Corpus-Female

Female audio data of American English,. It is recorded by American English native speaker, with authentic accent and sweet sound. The phoneme coverage is balanced. Professional phonetician participates in the annotation. It precisely matches with the research and development needs of the speech synthesis.

TTS American English Female

2 People - Mexican Spanish Average Tone Speech Synthesis Corpus

2 People - Mexican Spanish Average Tone Speech Synthesis Corpus. It is recorded by rn native Mexican, with authentic accent, Covering both customer service and general styles. The phoneme coverage is balanced. Professional phonetician participates in the annotation. It precisely matches with the research and development needs of the speech synthesis.

TTS Mexican Spanish Average Tone

38 People - Hong Kong Cantonese Average Tone Speech Synthesis Corpus

38 People - Hong Kong Cantonese Average Tone Speech Synthesis Corpus, It is recorded by Hong Kong native speakers. Professional phonetician participates in the annotation. It precisely matches with the research and development needs of the speech synthesis.

Synthesis Corpus TTS Female General Male english

50 Hours - English(the United States) Emotion Scripted Monologue Microphone speech dataset

English(the United States) Emotion Scripted Monologue Microphone speech dataset, collected from monologue based on given scripts, covering 10 types of emotional scripts,such as anger, happiness, sadness, etc., matches real-world scenario. Transcribed with text content and other attributes. Our dataset was collected from extensive and diversify speakers(20 American native speakers), geographicly speaking, enhancing model performance in real and complex tasks.rnQuality 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.

English emotional audio data captured by microphone emotional audio detection data English emotional audio data

90,000 sets – Multi-domain Customer Service Dialogue Text Data

Multi-domain Customer Service Dialogue Text Data, 90,000 sets in total; spanning multiple domains, including telecommunications, e-commerce, and financial, lifestyle, business, education, healthcare, and entertainment; Each set of data consists of single or multi-turn conversations; this dataset can be used for tasks such as LLM training, chatgpt

Customer Service Dialogue text data telecommunications topics data commerce topics data finance topics data LLM data Large Language Model data chatgpt data

50 People - Chinese-English Mixed Average Tone Speech Synthesis Corpus-Customer Service

50 People - Chinese-English Mixed Average Tone Speech Synthesis Corpus-Customer Service. It is recorded by Chinese native speakers,customer service text, and the syllables, phonemes and tones are balanced. Professional phonetician participates in the annotation. It precisely matches with the research and development needs of the speech synthesis.

TTS Average Tone Synthesis Corpus Customer Service

Why Nexdata

One-stop Data Service

Nexdata.ai provides comprehensive data
annotation and collection services to help
you succeed with your AI projects.

Data QA System

Nexdata delivers high-quality data with
intelligent self-inspection, multiple quality
checks, and ISO9001 certification.

Rich Annotation Tools

30 proven annotation tools for full coverage of
voice, image video, 3D point cloud and text
data annotation requirements.

Compliance & Security

We follows Personal Information Protection
Act, GDPR, ISO27001/ISO27701 for security
and regulatory compliance.

AI-assisted Pre-recognition

With the help of AI-assisted pre-recognition
function, human-computer interaction
semi-automatic annotation is realized.

Conversational AI Data Solutions

Tailored Data Services for Conversational AI Service

Multi-language

Multi-domain

Speech Segmentation

Speech Annotation

Emotion Annotation

Compliance & Security

Deploy reliable AI faster with Nexdata

Case Studies

Recommended Dataset

10.4 Hours - Japanese Synthesis Corpus-Female

10 People - British English Average Tone Speech Synthesis Corpus

19.46 Hours - American English Speech Synthesis Corpus-Female

2 People - Mexican Spanish Average Tone Speech Synthesis Corpus

38 People - Hong Kong Cantonese Average Tone Speech Synthesis Corpus

50 Hours - English(the United States) Emotion Scripted Monologue Microphone speech dataset

90,000 sets – Multi-domain Customer Service Dialogue Text Data

50 People - Chinese-English Mixed Average Tone Speech Synthesis Corpus-Customer Service

Why Nexdata

One-stop Data Service

Data QA System

Rich Annotation Tools

Compliance & Security

AI-assisted Pre-recognition

Know More About Tailored Data Solutions