Spanish (Spain) Spontaneous IVR


About the Dataset

500 hours

This audio dataset contains 500 hours of Spanish (Spain) Speech Data in various domains, recorded by speakers from Spain.

Domain distribution per dataset:

  • 116.15 hours of Banking
  • 145.45 hours of Insurance
  • 120.18 hours of Retail
  • 118.67 hours of Telecommunication

IVR stands for Interactive Voice Response. The Spontaneous IVR data is created by having a human respond to an IVR system. The human (playing a customer) is following simplified real-life scenarios, making a spontaneous query on the given topic. The IVR system will ask the human to repeat his/her query in 2 more different ways. The speech is then transcribed. In rare cases, the IVR system is mimicked by another human. The recording is done via telephony and is saved in 8khz 16 bit per channel.

The dataset is covered by's standard license agreement. The license agreement is perpetual and allows for the commercialization of all models built on the data.

Other characteristics:

  • WER: 3,6%
  • Audio format: WAV
  • Recording environment: noisy, silent
  • Bits per sample: 16
  • Communication band: narrowband
  • Sample rate: 8Hz
  • Device type: mobile


Check this 5-minute audio sample here. Transcription for the sample is also available

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