AUTHORING AN IMMERSIVE HAPTIC DATA FILE USING AN AUTHORING TOOL
Methods and systems of authoring audio signal(s) into haptic data file(s) are disclosed. An audio analysis module analyses the audio signal(s) using filterbank(s) or by performing a spectrogram analysis. Transients are detected in the audio signal. If present, the transients are processed to determine a transient score and a transient binary. A database stores device specific information and actuator specific information. A haptic perceptual bandwidth of an electronic computing device having an embedded actuator is determined by using information from the database. A user interface allows modification of time-amplitude values and transient values based on the determined haptic perceptual bandwidth. Authored time amplitude values are aggregated in authored audio descriptor data, which is passed to a transformation module that fits the data into the haptic perceptual bandwidth and implements algorithms to produce transformed audio descriptor data. Finally, the transformed audio descriptor data is converted to the haptic data file.
1 . An authoring system for authoring an audio signal into a haptic data file, the authoring system comprising:
an audio analysis module configured to filter the audio signal into analyzed audio descriptor data comprising time-amplitude values and a center frequency for one or more frequency bands;
a transient analysis and processing module configured to detect and analyze the transients in the audio signal and to convert the analyzed transients into transient descriptor data comprising an array of time-transient score date points;
an authoring tool comprising a user interface to display and modify the analyzed audio descriptor data comprising time-amplitude values and transient descriptor data, wherein the analyzed audio descriptor data and the transient descriptor data values are editable to create an authored audio descriptor data;
a database configured for providing one or more parameters having actuator specific information and device specific information associated with an electronic computing device having an embedded actuator to determine a perceptual haptic perceptual bandwidth of an electronic computing device having the embedded actuator to form other descriptor data;
a transformation module for receiving the authored audio descriptor data and other descriptor data to fit the authored audio descriptor data into the haptic perceptual bandwidth to create a transformed audio descriptor data file; and
an aggregation and file management module for converting the transformed audio descriptor data file into the haptic data file.