Wired Microphones SM57 SM57 UNIDIRECTIONAL DYNAMIC MICROPHONE 指向性动圈话筒 2009 Shure Incorporated 27A12820 (Rev. 2)
SM57 The Shure SM57 unidirectional dynamic microphone is exceptional for musical instrument pickup or for vocals. With its bright, clean sound and carefully contoured presence rise, the SM57 is ideal for live sound reinforcement and recording. It has an extremely effective cardioid pickup pattern which isolates the main sound source while minimizing background noise. In the studio, it is excellent for recording drums, guitar, and woodwinds. For musical instruments or vocals, the SM57 is a consistent choice of professional performers. FEATURES Performance tested, industry standard Uniform cardioid pick-up pattern for maximum gain before feedback and excellent rejection of off axis sound Tailored frequency response specifically shaped for guitars, drums and vocals Advanced pneumatic shock mount system that minimizes transmission of mechanical noise and vibration Enamel coated metal construction, polycarbonate grille with stainless steel screen resist wear and abuse Furnished with zippered storage bag and break resistant stand adapter Extremely durable under the heaviest use Shure quality, ruggedness and reliability APPLICATIONS AND PLACEMENT General Rules for Use Aim the microphone toward the desired sound source (such as the talker, singer, or instrument) and away from unwanted sources. Place the microphone as close as practical to the desired sound source. Work close to the microphone for extra bass response. Use only one microphone to pick up a single sound source. Use the fewest number of microphones as practical. Keep the distance between microphones at least three times the distance from each microphone to its source. Place microphones as far as possible from reflective surfaces. Add a windscreen when using the microphone outdoors. Avoid excessive handling to minimize pickup of mechanical noise and vibration. Do not cover any part of the microphone grille with your hand, as this will adversely affect microphone performance. P.A. LOUDSPEAKER RECOMMENDED LOUDSPEAKER LOCATIONS FOR CARDIOID MICROPHONES MONITOR MICROPHONE SOUND SOURCE Avoiding Pickup of Unwanted Sound Sources Place the microphone so that unwanted sound sources, such as monitors and loudspeakers, are directly behind it. To minimize feedback and ensure optimum rejection of unwanted sound, always test microphone placement before a performance. The following table lists the most common applications and placement techniques. Keep in mind that microphone technique is largely a matter of personal taste; there is no one correct microphone position. APPLICATION SUGGESTED MICROPHONE PLACEMENT TONE QUALITY Tom-Toms Snare Drum Guitar & Bass Amplifiers One mic on each tom, or between each pair of toms, 2.5 to 7.5 cm (1 to 3 in.) above drum heads. Aim each microphone at top drum heads. On double head toms, you can also remove bottom head and place a mic inside pointing up toward top drum head. 2.5 to 7.5 cm (1 to 3 in.) above rim of top head of drum. Aim mic at drum head. If desired, place a second mic just below rim of bottom head. Medium attack; full, balanced sound. Most snap from drumstick. More snare sound 2.5 cm (1 in.) from speaker, on-axis with center of speaker cone. Sharp attack; emphasized bass. 2.5 cm (1 in.) from speaker, at edge of speaker cone. Sharp attack; higher frequency sound. 15 to 30 cm (6 to 12 in.) away from speaker and on-axis with speaker cone. Medium attack; full, balanced sound. 60 to 90 cm (2 to 3 ft.) back from speaker, on-axis with speaker cone. Softer attack; reduced bass. Vocals Lips less than 15 cm (6 in.) away or touching the windscreen, on axis to microphone. Robust sound, emphasized bass, maximum isolation from other sources. Proximity Effect Unidirectional microphones such as the SM57 progressively boost bass frequencies by 6 to 10 db below 100 Hz when the microphone is at a distance of about 6 mm (1/4 in.) from the sound source. This phenomenon, known as proximity effect, can be used to create a warmer, more powerful sound. To prevent explosive low frequency sound during close-up use, the SM57 bass response gradually rolls off. This provides greater control and helps the user take advantage of proximity effect. 3
SPECIFICATIONS Type Frequency Response Polar Pattern Sensitivity (at 1 khz, open circuit voltage) Polarity Weight Connector Case Dynamic (moving coil) 40 to 15,000 Hz Cardioid 56.0 dbv/pa (1.6 mv) 1 Pascal=94 db SPL Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 Net: 0.284 kg (0.625 lbs) Three-pin professional audio (XLR), male Dark gray, enamel-painted, die-cast steel with a polycarbonate grille and a stainless steel screen. ACCESSORIES AND PARTS Furnished Accessories Swivel Stand Adapter A25D Storage Bag 95C2313 Optional Accessories Locking Windscreen - Gray A2WS-GRA Desk Stand S37A Shock Stopper Isolation Mount A55M Dual Mount A26M 7.6 m (25 ft.) Cable C25E TRIPLE-FLEX Cable and Plug 7.6 m (25 ft.) C25F CERTIFICATION Eligible to bear CE Marking. Conforms to European EMC Directive 89/336/EEC. Meets applicable tests and performance criteria in European Standard EN55103 (1996) parts 1 and 2, for residential (E1) and light industrial (E2) environments. Replacement Parts Cartridge Screen and Grille Assembly R57 RK244G 4
SM57 舒尔SM57 指向性动圈话筒在乐器拾音和人声拾音方 面表现卓越 其明亮 清晰的音质以及精心调试的修 正频响曲线 使得SM57在现场扩声和录音场合都有理 想表现 话筒具有心形指向性 非常有效地降低了环境 声对于拾取声源的影响 在录音棚里 SM57对于鼓 吉他以及管乐器的录音同样出色 无论是乐器 还是人 声 SM57都是专业人士始终如一的选择 特性 历经无数演出考验 当之无愧的行业标准 心形指向性 提供最大的反馈前增益和优秀的离轴噪声抑制 修正的频率响应特别适合吉他 鼓和人声 内置高级充气减震系统 降低手持噪声和震动 涂有瓷漆的金属结构 不锈钢网罩 坚固耐用 配有拉链储存袋和防摔话筒夹 即使在过度使用的情况下仍然非常耐用 舒尔品质 坚固可靠 应用和摆位 推荐的音箱位置 一般使用规则 将话筒对准所录制的声源 例如谈话者 唱歌者或乐器 远离其他声源 尽可能靠近所录制声源摆放 如果想获得更多的低频响应 可将话筒进一步靠近音源 只使用一个话筒来拾取单个声源 返送音箱 保持话筒之间的距离 使其至少三倍于每个话筒与其声源之间的距离 将话筒放置在尽可能远离反射表面的地方 在户外使用话筒时 加一个防风罩 避免过多触摸 以便将机械噪声的拾取和震动降低到最低水平 扩声音箱 尽可能减少使用话筒的数量 话筒 声源 切勿用手遮盖住话筒滤网的任何部位 因为这会影响话筒的性能 避免拾取干扰声源 正确放置话筒 使类似返听音箱和扩声音箱等干扰声源位于话筒拾音方向的反方 向 要减少反馈和确保干扰声源的最佳隔离 务必在演出前测试话筒摆位 下表列出了一些常见的应用场合及摆位技巧 请注意 话筒的放置方式在很大程度上取决于个人喜好 正确的 话筒拾音位置绝不止一个 应用 建议话筒放置的位置 音色 每个通鼓一支话筒 或两个通鼓之间放置一支 话筒置于鼓皮上方25毫米至75毫米 方向对着上鼓 皮 用于双面通鼓时 拆下底部鼓皮 将话筒放入鼓腔 方向对着鼓皮 冲击力适中 音色平衡 军鼓 话筒置于上鼓皮鼓边上方25毫米至75毫米处 对着鼓皮 如果需要 可在下鼓皮鼓边下方再放一个 话筒 强调鼓槌的快速敲击效果. 更多的响弦音 电吉他/电贝司音箱 与扬声器的距离为 2.5 厘米 1 英吋 在话筒轴线上扬声器锥盆范围内 音头锐利 低频突出 与扬声器的距离为 2.5 厘米 1 英吋 在扬声器锥盆边缘 音头锐利 中高频突出 离扬声器 15 至 30 厘米 6 至 12 英吋 在话筒轴线上扬声器锥盆范围内 音头平和 完整的平衡声 与扬声器的距离为 60 至 90 厘米 2 至 3 英呎 在话筒轴线上扬声器锥盆范围内 音头柔软 低频减弱 嘴与防风罩的距离少于 15 厘米 6 英吋 或轻触防尘罩 在话筒轴线上 饱满 加重低音 最大程度隔离其它声源 通鼓 人声 近讲效应 当话筒与声源之间的距离在6毫米 1/4英吋 左右时 像SM57这样的指向性的话筒会将100HZ以下的低频提升6 10dB,这个现象被称之为 近讲效应 在录音时 常会被用来 创造一种更加温暖 更加厚重的音色效果 用户可以通过SM57的低频滚降特性来最大限度的控制 利用近讲效应 5
规格 类型 频率响应 指向性图样 灵敏度 (1 khz 时, 开路电压 ) 动圈 40 至 15,000 Hz 心形 56.0 dbv/pa (1.6 mv) 1 Pa=94 db SPL 极性 作用在话筒振膜上的正压, 在输出接口的针脚 2 上产生相对于针脚 3 的正电压 重量 净重 : 0.284 公斤 (0.625 磅 ) 接头 三针卡侬公头 (XLR) 外壳 压铸钢材质, 涂深灰瓷漆, 带聚碳酸酯网栅和 不锈钢网 附件和替换备件提供的附件话筒支架转接器储存袋可选配附件防风罩桌面话筒架 Shock Stopper 减震架双话筒架话筒线,7.6 米 (25 英尺 ) TRIPLE-FLEX 话筒线,7.6 米 (25 英尺 ) A25D 95C2313 A2WS-GRA S37A A55M A26M C25E C25F 认证 可标注 CE 标志 符合欧洲 EMC 指令 89/336/EEC 符合欧洲标准 EN55103 (1996) 第 1 部分和第 2 部分当中的应用测试和性能标准 用于住宅环境 (E1) 和轻工业环境 (E2) 替换备件 话筒头 话筒头罩 R57 RK244G 6
+20 db +10 0 10 20 20 50 100 2 3 4 5 6 7 89 1000 2 3 4 5 6 7 89 10000 20000 Hz 125 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz TYPICAL FREQUENCY RESPONSE TYPICAL POLAR PATTERNS 典型频率响应 典型极性图样 157 mm (6 3/16 in.) 23 mm (29/32 in.) 32 mm (1 1/4 in.) OVERALL DIMENSIONS 尺寸 INTERNAL CONNECTIONS 内部连接 CARTRIDGE - 话筒头 CODED TERMINAL 线端 GREEN 绿色 BLUE - 蓝色 RED - 红色 YELLOW 黄色 BLACK - 黑色 7
SHURE Incorporated http://www.shure.com United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Phone: 847-600-2000 U.S. Fax: 847-600-1212 Intl Fax: 847-600-6446 Europe, Middle East, Africa: Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414 Asia, Pacific: Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055 SHURE Incorporated http://www.shure.com États-Unis, Canada, Amérique latine, Caraïbes: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Téléphone : 847-600-2000 Télécopie aux États-Unis : 847-600-1212 Télécopie internationale : 847-600-6446 Europe, Moyen-Orient, Afrique: Shure Europe GmbH, Téléphone : 49-7131-72140 Télécopie : 49-7131-721414 Asie, Pacifique: Shure Asia Limited, Téléphone : 852-2893-4290 Télécopie : 852-2893-4055 SHURE Incorporated http://www.shure.com Estados Unidos, Canadá, Latinoamérica, Caribe: 5800 W. Touhy Avenue, Niles, IL 60714-4608, EE.UU. Teléfono: 847-600-2000 (dentro de los EE.UU.) Fax: 847-600-1212 Fax internacional: 847-600-6446 Europa, Medio Oriente, Africa: Shure Europe GmbH, teléfono: 49-7131-72140 Fax: 49-7131-721414 Asia, Pacífico: Shure Asia Limited, teléfono: 852-2893-4290 Fax: 852-2893-4055 SHURE Incorporated http://www.shure.com Stati Uniti, Canada, America latina, Caraibi: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Numero telefonico: 847-600-2000 Fax U.S.A.: 847-600-1212 Fax internazionale: 847-600-6446 Europa, Medio Oriente, Africa: Shure Europe GmbH, numero telefonico: 49-7131-72140 Fax: 49-7131-721414 Asia, Pacifico: Shure Asia Limited, numero telefonico: 852-2893-4290 Fax: 852-2893-4055