Introduction – DrMagSound
The rehabilitation program focuses on the auditory perception development at the basal acoustic level with not verbal acoustic connections. It is aimed at stimulation of sound intensity differentiation modalities, directionality of hearing and selective hearing, i.e. distinguishing “figure” on the background of what we hear. The full length of exercising should not be longer than 10 or 15 minutes. During the exercise sounds which acoustically correspond with fricative and explosive consonants and vocals can be chosen as the dominant signal. Background sounds are represented by various sounds with a wide spectrum of harmonic and non-harmonic components including sounds surrounding us on everyday basis (street sounds, sea noise, etc.). The program is controlled by the therapist; the rehabilitated person should not be allowed to watch the screen. Any sound considered suitable by the therapist can be added to the program. Individual functions and rehabilitation sections do not have any feedback value check which is intentional and left to the interaction between the rehabilitated person and the therapist. The program is designed for children and adults.
CHARACTERISTICS OF BASIC MODALITIES OF USE
|Distinguishing between the dominant signal and the background||Basic specifications: The selected acoustic background gradually trains the ability to distinguish individual dominant signal. The exercise is performed while simultaneously playing both sounds with a gradual change in intensity of the dominant signal or intensity of background. Speakers are in the same distance from the rehabilitated person.
Variants and exercise description:
I. If you increase the dominant signal significantly, the selected dominant sound increases gradually too. When it has been recognised, the exercise is repeated with the aim to capture the dominant sound at its lowest intensity.
II. If you increase the dominant signal significantly, the selected dominant sound increases gradually too. When it has been recognised, it intensifies and then gradually lowers to its minimum audibility.
III. The dominant sound is played with and audible increased intensity and the background sound intensifies gradually until the dominant sound is fully overlaid. Then the background sound intensity lowers to the audibility of the dominant signal.
IV. Work with only one selected sound which is chosen as the dominant signal (suitable for rehabilitation of serious hearing disorders after audiphones correction or cochlear implants, can be used while setting CI.
Aim: Selective hearing ability development, ability to distinguish useful/dominant sound signal in diverse sound background.
|Directionality perception||Basic specifications: The training is based on the same use of the program as in the case of the distinguishing the dominant sound from the background. At the same time, the ability to smoothly change sides, which the dominant and the background sounds come from, is utilised. Speakers are in the same distance from the rehabilitated person. The disposition is as follows as required: right – left side, forward – backward side.
Variants and exercise description:
I. The background sound is played from both speakers. The dominant signal intensity is increased in the selected speaker. The rehabilitated person trains simultaneously dominant signal recognition and the ability to determine the direction from which the sound came.
II. Background and dominant signal sounds are played from selected individual speakers.
III. You work only with one selected sound, which is considered dominant signal (suitable for rehabilitation of serious hearing disorders after audiphones correction or cochlear implants).
Rehab. Aim: Directional hearing development at the background of another sound signal or in a silent environment.