This volume constitutes the refereed proceedings of the Spanish Conference, IberSPEECH 2012: Joint VII “Jornadas en Tecnología del Habla” and III Iberian SLTech Workshop, held in Madrid, Spain, in November 21-23, 2012. The 29 revised papers were carefully reviewed and selected from 80 submissions. The papers are organized in topical sections on speaker characterization and recognition, audio and speech segmentation, pathology detection and speech characterization, dialogue and multimodal systems, robustness in automatic speech recognition, applications of speech and language technologies.