多媒体技术基础在线作业1（国外英文资料）.docVIP

多媒体技术基础在线作业1（国外英文资料） Total: 25 questions 100 One. (20 questions, 80) What is the future development of multimedia technology? A. High resolution, improve display quality High resolution, improve display quality/high speed, shorten processing time High resolution, high quality/high speed, shorten processing time/simplification, easy to operate D. high resolution, improve the display quality/high speed, shorten processing time/simplification, facilitate operation/intelligence, improve the ability of information recognition Student: D Score: 4 points: 4.0 Which of the following waveforms is the best quality? Monophonic channel, 8 quantified, 22.05 KHz sampling frequency B. double sound channel, 8 quantified, 44.1 KHz sampling frequency C. monophonic channel, 16 quantified, 22.051 KHz sampling frequency D. double sound channel, 16 quantified, 44.1 KHz sampling frequency Student: D Score: 4 points: 4.0 MIDIs music synthesizer. A. FM B. FM/wave table C. the tremolo d.a Student answer: B Score: 4 points: 4.0 The frequency range of the five tracks provided by the ac-3 digital audio encoding is: A. 20 hz to 2 KHZ B. 100 hz to 1 KHZ C. 20 hz to 20 KHZ D. 20 hz to 200 KHZ Student: C Score: 4 points: 4.0 The audio coding standard, g. 721, which was released in 1984, USES () code. Uniform quantification B. adaptive quantification C. adaptive differential pulse Linear prediction Student: C Score: 4 points: 4.0 Which of the following sampling frequencies is supported by the current audio card? A. 20 KHZ B. 11.025 KHz C. 10 KHZ D. 50 KHZ Student answer: B Score: 4 points: 4.0 What are the functions of the audio card? A. record and playback digital audio files B. record and playback digital audio file/remix/real-time unzip digital single-frequency files C. Remix/speech feature recognition D. Real-time solution/compressed digital single-frequency file Student answer: B Score: 4 points: 4.0 Two minutes of double sound, 16 sampled digits, 22.05 KHz sampling frequency sound uncompressed