Browsing by Author "Aziani Ahmad"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Characteristics of underwater sound and noise in coastal and inland waters of Terengganu
    (Terengganu: University Malaysia Terengganu, 2011-06) Aziani Ahmad
    The characteristics of underwater noise covering ambient, biological and those noises generated by economic activities in waters of Terengganu are studied by using passive acoustics technique. Noise data were collected at several locations in Kuala Terengganu coastal waters including Bidong Island and Merang Jetty. Additional data were also collected from freshwater environment in Kuala Terengganu River and Kenyir Lake for the purpose of comparison to the marine environment. The underwater recording system consists of a hydrophone, amplifier, laptop and processing software. Sound processing and analysis were carried out using Sound Forge 7.0, Raven Pro Ver. 1.3, Matlab R2008a and Audacity software to generate noise spectrum and spectrograms.
  • Thumbnail Image
    Item
    Fish habitat in Kenyir Lake at lentic area using hydro-acoustic method
    (Terengganu: Kolej Universiti Sains dan Teknologi Malaysia, 2006) Aziani Ahmad
    The objectives of this study are to determine water parameter suitable at fish habitat,to determine the presence of fish schools in Kenyir Lake and to determine fish species at different depths of water.