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Engineering design of the mobile acoustic shielding
Rakhmatullin, Artem ; Nohál, Libor (referee) ; Klapka, Milan (advisor)
This bachelor thesis deals with the problem of improving the environment for measurement using variable elements with acoustic insulation. The aim was to design several variants of acoustic shields and choose the best according to the specific requirements described in the work. We have calculated a specific theoretical estimate of attenuation from values reported from different manufacturers. The designed structure can be used to shield unwanted sources of ambient noise.
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Cancelling noise of magnetic resonance in recordings of speech
Vrba, Filip ; Galáž, Zoltán (referee) ; Zvončák, Vojtěch (advisor)
This thesis deals with the removal of noise in speech recordings that have been recorded in an MRI environment. For this purpose, the Nvidia RTX Voice technology, the VST plug-in module Noisereduce and a self-designed method of subtractive de-noising of recordings are used. A program with a simple graphical interface in Python is implemented within the work to retrieve the recordings and then de-noise them using the proposed methods. The work includes measurements in a magnetic resonance environment with two microphones. The quality of the processed recordings is tested within the program using the STOI (Short-Time Objective Intelligibility Measure) method as well as the subjective analysis method within listening tests.
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Cancelling noise of magnetic resonance in recordings of speech
Vrba, Filip ; Galáž, Zoltán (referee) ; Zvončák, Vojtěch (advisor)
This thesis deals with the removal of noise in speech recordings that have been recorded in an MRI environment. For this purpose, the Nvidia RTX Voice technology, the VST plug-in module Noisereduce and a self-designed method of subtractive de-noising of recordings are used. A program with a simple graphical interface in Python is implemented within the work to retrieve the recordings and then de-noise them using the proposed methods. The work includes measurements in a magnetic resonance environment with two microphones. The quality of the processed recordings is tested within the program using the STOI (Short-Time Objective Intelligibility Measure) method as well as the subjective analysis method within listening tests.
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Engineering design of the mobile acoustic shielding
Rakhmatullin, Artem ; Nohál, Libor (referee) ; Klapka, Milan (advisor)
This bachelor thesis deals with the problem of improving the environment for measurement using variable elements with acoustic insulation. The aim was to design several variants of acoustic shields and choose the best according to the specific requirements described in the work. We have calculated a specific theoretical estimate of attenuation from values reported from different manufacturers. The designed structure can be used to shield unwanted sources of ambient noise.
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