SpeechDataAI/taiwanese-mandarin-conversational-speech

Taiwanese Mandarin Conversational Speech Dataset

1,500 hours of spontaneous two-person conversations in Taiwanese Mandarin, recorded in Taiwan with 150 vetted native speakers. Dual-channel audio, time-aligned human-verified transcripts and speaker metadata, licensed for commercial ASR, TTS and voice AI training.

This repository is the dataset card only. The audio is licensed commercially and isn't hosted on Hugging Face. Free samples (audio, matching transcripts and the metadata schema) are sent on request: request Taiwanese Mandarin samples. To evaluate a purchase, request a written quote so the team can confirm available recordings, permitted use and total price for your brief.

Specifications

Language	Taiwanese Mandarin
Recorded in	Taiwan
Speech type	Spontaneous two-person conversations
Volume	1,500 hours
Speakers	150 vetted native speakers
Audio	Dual-channel, one channel per speaker
Transcripts	Time-aligned, human-verified
Speaker metadata	Age, gender, region, recording device
Consent	Signed commercial-use consent from every speaker
License	Commercial, for training and evaluation
Price	$70 per hour of audio, volume and multi-language discounts on request

What makes Taiwanese Mandarin hard for speech recognition

Taiwanese Mandarin differs from mainland Mandarin in accent and vocabulary. Many speakers merge "zh", "ch" and "sh" into "z", "c" and "s", the neutral tone is used less, and it's written in Traditional characters. Conversation often mixes in Taiwanese Hokkien too.

Built for

• Automatic speech recognition (ASR / STT)
• Text-to-speech and voice synthesis prosody
• Voice agents and IVR for Taiwan
• Speaker diarization and turn-taking models
• Speech LLM and audio-understanding fine-tuning

Getting the data

Request samples with a company email on the Mandarin Chinese (Taiwanese) dataset page and the team replies with representative audio and transcripts so you can check quality, accents and transcript conventions before you buy. Need more hours, another dialect or your own recording setup? SpeechData.ai also collects speech data to spec, or you can book a call.

Need something else?

• Call center speech data for call-center style recordings.
• Audio annotation services to transcribe or annotate audio you already have.
• Speech data pricing with published per-hour prices.

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About SpeechData.ai

SpeechData.ai licenses conversational speech datasets in 60 languages and dialects and runs custom speech data collection. It's part of Spirelight. Browse the full catalog.