A Simple Method to Obtain Basic Acoustic Measures From Video Recordings as Subtitles

Abstract

This method is useful in integrating the acoustic measures with any kind of video recordings containing audio data when inbuilt hardware means are not available. However, calibration and other technical aspects related to data acquisition and synchronization described in this article should be properly taken care of during the recording.

Determining the Mouth-to-Microphone Distance in Rigid Laryngoscopy: A Simple Solution Based on the Newly Measured Values of the Depth of Endoscope Insertion into the Mouth

“…Modern laryngoscopic devices capture the sound by a small microphone attached directly to the laryngoscope or to a camera head to relate the vocal fold abnormalities to the produced vocal sound. The captured sound is used to determine basic vocal characteristics, e.g., the vocal fold vibrational frequency (f o ) and sound pressure level (SPL), which can be displayed on a monitor [6]. This is relevant because the laryngeal adjustment and vocal fold behavior change with the f o and SPL.…”