The data set contains 327 German native speakers' speech data. The recording contents include economics, entertainment, news, oral, figure, letter, etc. Each sentence contains 10.3 words on average. Each sentence is repeated 1.4 times on average. All texts are manually transcribed to ensure the 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 Speaker:327 Germans, 53% of which are male Device:Android mobile phone, iPhone Language:German Transcription content:text, time point of speech data, 5 noise symbols, 5 special identifiers Accuracy rate:95% (the accuracy rate of noise symbols and other identifiers is not included) Application scenarios:speech recognition, voiceprint recognition