Instrumental and perceptual evidence for tracheoesophageal speech

Area of Science:

• Speech-Language Pathology
• Otolaryngology
• Biomedical Engineering

Background:

• Alaryngeal speech is crucial for individuals who have undergone laryngectomy.
• Tracheoesophageal puncture (TEP) and electrolaryngeal (EL) devices are common methods for alaryngeal speech rehabilitation.
• Objective and subjective assessments are needed to compare the efficacy of different alaryngeal speech methods.

Purpose of the Study:

• To compare the speech intelligibility of tracheoesophageal (TE) speech versus electrolaryngeal (EL) speech.
• To evaluate alaryngeal speech production using both perceptual and acoustic measures.

Main Methods:

• A cohort of 8 male participants with alaryngeal speech was recruited.
• Speech samples were collected from participants using both TE and EL speech methods.
• Perceptual ratings of intelligibility were obtained.
• Acoustic analyses were performed to quantify speech characteristics.

Main Results:

• Perceptual measures consistently indicated higher speech intelligibility for TE speech compared to EL speech.
• Acoustic analyses corroborated the perceptual findings, demonstrating superior speech characteristics for TE speech.
• All participants demonstrated better speech intelligibility with the TE method.

Conclusions:

• Tracheoesophageal speech production is perceptually and acoustically superior to electrolaryngeal speech production.
• TE speech offers improved intelligibility for individuals rehabilitating alaryngeal speech.
• Further research should explore long-term outcomes and patient-reported satisfaction with both methods.