Analisis rekognisi pengucap forensik sangat rutin diperlukan di Indonesia. Pengembangan sistem dari pendekatan fonetik-akustik menuju sistem rekognisi pengucap otomatis yang tidak bergantung teks menjadi sangat penting untuk dilakukan. Dalam pengujian dan pelatihan kinerjanya, sistem rekognisi pengucap otomatis memerlukan suatu basis data. Makalah ini membahas mengenai desain perekaman basis data suara ucap yang terdiri dari tiga skenario utama, yaitu data suara ucap, wawancara, dan percakapan natural. Media perekaman yang digunakan berupa satu buah mikrofon dan lima buah media perekaman portabel dengan kualitas yang beragam. Adapun bahasa yang digunakan pada saat perekaman adalah Bahasa Indonesia. Basis data suara ucap berbahasa Indonesia ini diharapkan dapat menjadi alat untuk pengembangan sistem rekognisi pengucap otomatis di Indonesia, khususnya untuk aplikasi forensik.
Bricks are regarded as important material in building constructions. Basically, brick is processed by mixing clay and water then burnt under high temperature for a certain duration. Previous study in Indonesia shows that mixing local clay with additional materials could improve its characteristic, especially in terms of water absorption potentiality. Lampung has home industries which run brick making business traditionally. Moreover, this year Indonesian government has been organizing regional elections which attract campaigners to produce more vinyl banners as advertising media. As the event has already passed, vinyl banners eventually become environmental issue since they are not yet well managed. The aim of this study is to investigate the possibility and effect of red bricks mixtures along with vinyl banner waste. Firedclay bricks dimensions including length, width, and height are 19 cm, 9.5 cm, and 5 cm respectively. Measurement has done by employing water absorption tests. Waste-added bricks absorb more water than the conventional one, about 11% higher. However, rice-husk-ash-added bricks perform similar to the normal bricks, it has slow rate of water absorption. Absorption rate of waste-added bricks also fast and exceed the conventional and RHA-added bricks. Modified red bricks surfaces are uneven, they show cracks and rough edges.
The regional election in Lampung province has finished. The events left the amount of ex-campaign props such as banner to become waste. The final landfills and the waste reuse system are still an unsolved issue in Lampung province. A study of materials composition is required to find potential reuse of the waste. One of the traditional products in Lampung province is conventional bricks. Previous studies show that mixing local clay with additional materials such as Rice Husk Ash (RHA) could improve its characteristics, especially water absorption potentiality. This study reported the prototype of bricks with banners waste mix produced employing a conventional method. The method obtains the best admixture composition is 0.002 kilograms banner waste/volume 0.125 liters or 0.02% total weight of clay-dough. The morphology of the prototype shows a similar texture with a non-waste mixture of traditional brick. It is burnt-clay red-bricks, which is used as a control in this study. The prototype bricks show smooth texture and nearly flat on all sides. The addition waste composition ratio of more than 0.002 kilograms indicated cracking texture that affects the market tend to buy bricks, which has good appearance and texture. This study also reported that the mixture's effect is decreasing compressive strength, almost 20% from the control sample.
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