Thai speech data (reading) is collected from 498 Thailand native speakers and is recorded in quiet environment. The recording is rich in content, covering multiple categories such as econimics, entertainment, news, figure, and oral. Around 400 sentences for each speaker. The valid data volumn is 292 hours. All texts are manual transcribed with high accuracy. Format:16kHz, 16bit, uncompressed wav, mono channel Recording environment:quiet indoor environment, without echo Recording content (read speech):economy, entertainment, news, oral language, numbers, letters Speakers:498 people from Thailand, 57% of which are female Device:Android mobile phone, iPhone Transcription content:text, time point of speech data, 5 noise symbols, special identifiers Accuracy rate:95% (the accuracy rate of noise symbols and other identifiers is not included) Application scenarios:speech recognition, voiceprint recognition Language:Thai