What is Speech Audiometry?
Speech audiometry is a critical diagnostic tool used alongside pure-tone audiometry to evaluate hearing function more holistically. It helps determine how well a person can detect and recognize speech, and is essential in identifying the type and degree of hearing loss.
At Denoc Hearing, we perform Speech Detection Threshold (SDT) and Speech Recognition Threshold (SRT) evaluations to offer a deeper insight into your hearing capability.
Clinical Procedure for SDT & SRT
- Test Environment: Patient is seated in a soundproof booth and fitted with headphones or tested via free-field speakers.
- Testing Method: Our audiologist may use:
- Descending Method: “10 dB down, 5 dB up”
- Ascending Method: “10 dB up, 5 dB down”
- Speech Stimuli: Spondaic Words (e.g., “hotdog”, “sunset”) are used.
- For SDT (Speech Detection Threshold): Patient responds through hand signal, verbal cue, or button press when they hear speech.
- For SRT (Speech Recognition Threshold): Patient is asked to repeat the words they hear.
Special Use Case – SDT
- Children under 2 years (who can't repeat words)
- Non-English speakers
- Patients with neurological conditions (e.g., stroke survivors)
In SDT, it's not essential to identify speech — the goal is to detect the presence of sound. No verbal response is needed.
Interpretation
- SRT (Speech Recognition Threshold): Lowest intensity level at which a patient can recognize and repeat speech 50% of the time.
- SDT (Speech Detection Threshold): Lowest level at which presence of speech is detected half of the time.
Duration & Report Delivery
- Testing Time: Approximately 1 hour
- Reports: Delivered immediately post-assessment
Patient Preparation
- No special preparation needed.
- Ensure the patient is well-rested and calm before the test.
Why Choose Denoc for Speech Audiometry?
- Advanced speech testing equipment
- Skilled audiologists with experience in pediatric and adult audiometry
- Instant results and counseling
Frequently Asked Questions (FAQs)
SRT measures the ability to recognize and repeat speech, while SDT detects the presence of speech without needing the patient to understand it.
Yes, SDT is ideal for infants and toddlers who are not yet able to repeat words
Yes. At Denoc Hearing, results are shared immediately after the session along with professional consultation.

