• A novel database of Spanish esophageal voices designed for developing new software for speakers with this pathology.

• Includes recordings of 100 sentences from 30 esophageal speakers. The size and variety of the database makes it unique.

• Includes the phonetic labels of the recordings. Automatic phonetic labelling procedure is described.

• The main acoustic characteristics of the voices are described and compared with a reduced set of healthy voices.

• The database has successfully been used for reducing Automatic Speech Recognition errors for esophageal speakers.