情報1の"音のデジタル表現"の単元についてです。 下の写真の4.の3つの問題がよくわかりません。 なぜこの答えになるのか教えて下さい。 テストも近いのでなるはやでお願いします(o_ _)o ※横の赤文字が答えになります。

■ 2. 通常の音楽CDは量子化ビット数を16ビットで記録している。 これに対して, デジタル音楽 配信サービスの中には量子化ビット数を24ビットにして同じ楽曲を販売しているケースがある。 原音に対して, サンプリング周波数は同じであるとして、 次の説明のうち正しいものを1つ 選べ。 波の高さ ? ? ① 演奏時間が同じ場合,データ量は少なくなる ② データを扱う機器やコンピュータ内蔵CPUの負担は減る 超低音から超高音まで音の上下限が拡大する ④ より小さな音から大きな音までの表現力の幅が広がる <96000回 3. 音楽CDの何倍もの情報量を持つ 「ハイレゾ (High Resolution) 音源」の楽曲がネット配信 販売されている。 標本化周波数 96KHz, 量子化ビット数が24ビット, ②チャンネルのス レオであるとき, 16GBの記憶容量を持つプレーヤーなら, 1曲が4分として約何曲保存す ことができるか。 次の中から1つ選べ。 なお, 1K=1000 とする。 96000×24×2×(60×4)= 138 115 1157 (4 1382 4. 次の計算をして、適当なものをそれぞれ1つ選べ。 電話の音声をデジタル信号にするとき, 最大周波数が4KHzであった場合の標本化周波 ① 4KHz ④ 32KHz 8KHz 16KHz ✓ 上記データをマイナス範囲-8~ 0, プラス範囲0~7の16段階で量子化する場合のビ 数。 ① 8bit 上記データをそのまま符号化したとき, 1K=1000の場合の、 最低必要となる伝送速度 ① 4Kbps ④32Kbps ② 8Kbps ③ 16Kbps ① 4bit 16bit 32bit

全く分かりません😭教えてください🙇‍♀️

Exercises Arrange the words in the proper order. 1. It (about three hours / do / me / to / took ) my homework. 2. (did / how long / it / take / to / you) finish writing the paper? 3. It (build/ billions of yen / cost / to / will) a new school building. 4. How much (cost / it / send / this book / to / will) to the U.S.? 5. It will (about 40 hours / get / take / to / to / you) Machu Picchu from Japan. 1 (48 2 Fill in the blanks so that each pair of sentences will have the same meaning. 1. a. I need to have someone carry my bag. It's very heavy. b. I need to have ( ) ( )( 2. a. They had the girl take care of their baby while they were out for the concert. b. They had ( ) ( ) ( ) ( ) ( ) by the girl while they were out for the concert. a. I had my sister clean my room. b. I had ( ) ( )( ) ( ) my sister. 4. a. My bicycle was stolen when I left it in front of a bookstore yesterday. b. I ( ) ( ) ( )( bookstore yesterday. ) by someone. It's very heavy. 3. ) when I left it in front of a

His mother fell ill.とSo he was absent from school.をくっつける時、His mother having fallen ill, he was absent from school.になるのはなぜですか？ having fall... 続きを読む

2の問題ですが、回答は②でした。①がダメな理由を解説していただきたいです。お願いします。

1 has seen 2. It( 1 has passed 3. John ( ny times since he was ten years old. (3) saw 4 sees 2 have seen ) more than ten years since he left his hometown. 4 is passed 2 has been (3) was ) his wallet at school, but one of his friends found it in a classroom. XIR (桜美林大)

‼️‼️至急お願いします‼️‼️ 分詞の文法が分かりません> <‪💧‬解答だけでもお願いしたいです🙇‍♀️🙏

7 分詞 1 空所に入る最も適当な語句を答えなさい。 166 167 There is a weekly brass band concert, ( weather is permitting 3 weather permitting 1) left my umbrella in the train, I got wet in the rain. 2 To be 3 To have Being 168 Bill was the only person ( 169( 170 What happened to Taro? He seems to ( 1 shock 2 shocked 171 They were ( amaze ) in the car accident. being injured 2 injuresmorl bo injured 79170 254 injuring foodse 100) in plain English, the book is suitable for beginners. Writing 2 Written 3 Having written 172 All things ( 175 ( 3 considering having considered 173 I've got a surprise. Keep your eyes ( 1 close 2 closing to close 174 Mary's parents seemed ( ) at the singer's fantastic voice. 2 amazedynille amazing of ), everybody can say this result is correct. 2 to consider relief Tre and wo? relieved 178 There is nothing ( embarrassment 2 weather will be permitting 4d weather permits Jnslia boniemen 4 176 He was lost in thought with his 1 close 2 closed KISV 150) by something. 3 be shocking eyes ( 4 Having ) his mistake, John decided to apologize to his parents. Had realized 2 Realized 3 Has been realizing li jarli ne ). 3 closing considered onod \ gniwonal (東京造形大) 4 To write t 4 4 be shocked (京都産業大) 静岡県立短大) matomy(東北工業大) 4mamazement (札幌大) ) to hear that her plane was on time. ( 聖マリアンナ医科大) to relieve 3 relieving Monty ) until I tell you to open them. ( 桜花学園大 ) close to have clo closed 3 4 od of brusque invasiq 280dy to IA to close (金蘭短大) 177 Do know that woman over there, the one (de ) in the white blouse? you mimidi won of w rol hatnicareant 27 11 1 to dress dressing 3 dressed 4 dresses ( 桜花学園大 ) (南山大) 4 Realizing ( 桜美林大) 南山大) ) about asking for help when you are in trouble. (関西学院大) embarrassing 3 embarrassed 4 embarrass 21 7 一分詞 分 詞

1. (mountain pass/transport goods/ difficult/is/making it/steep,/to/The). 2. (competitive,/ The/hard/making it/for/restaurant industry/t... 続きを読む

赤線のasはなぜ入っていて、どのように訳すのですか？

as rounded, and the falling as spi un familiar One possible explanation is that if we are (H) with tones in a language, as English-speakers are, then we may mainly hear them as high or low, and form familiar associations based on pitch*. But if we are (I with tones, as Chinese speakers are, we may be able to distinguish finer nuances. In the experiment, the Mandarin speakers

この回答の添削お願いします🙇‍♀️💦

重要なコミュニケーションとして成立するものでさえある。それゆえ、 話す場においても、会食の有無が大きな違いを生む可能性があるという人もいる。 大事なことを huge differe R 教室で「日本の小学校は教員の増

意見文の添削をしていただきたいです！！ Hello everyone,today’s topic is “students should do volunteer work.” We define that hosted by their school and appl... 続きを読む

Hello everyone,today's topic is "students should do volunteer work. We define that hosted by their school and apply for any volunteer work by myself. We have two points. We can make a social contribution and we can learn many things. I will explain our 1st point. We believe that doing volunteer work broadens one's horizons. According to Japan University of Health Science, volunteer work makes us self-development. Doing it connects with many kinds of people. Participants find a new perspective. For this reason, our minds are inspired by other participants. Also I learned many things about the situation of the world. I participated in volunteer work to clean the beach. Before I did it, I didn't have an interest in the ocean plastic problem. But by participating in it, I know that there is a lot of ocean plastic and I was interested in the problem. Therefore I think students should do volunteer work. Thank you.

写真の文についでですが、couldはどのような意味で使われているのですか？解説お願いします。

He suggested that I could read (somewhere) (quietly) or do some school work O S' V、 V' O' S (at the museum cafe)). 訳 父は,どこかで静かに読書をしたり,あるいは博物館のカフェで学校の宿題をや ったりしてはどうかと提案した。