双31段均衡器的调试
均衡器的调整方法(专业音响师必修)
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均衡器的调整方法音频的均衡是很多发烧友热衷的话题,但对非专业人员来说,则是神秘的东东,下面就带你去学习均衡器的调整方法。
1.均衡器的调整方法:超低音:20Hz-40Hz,适当时声音强而有力。
能控制雷声、低音鼓、管风琴和贝司的声音。
过度提升会使音乐变得混浊不清。
低音:40Hz-150Hz,是声音的基础部份,其能量占整个音频能量的70%,是表现音乐风格的重要成份。
适当时,低音张弛得宜,声音丰满柔和,不足时声音单薄,150Hz,过度提升时会使声音发闷,明亮度下降,鼻音增强。
中低音:150Hz-500Hz,是声音的结构部分,人声位于这个位置,不足时,演唱声会被音乐淹没,声音软而无力,适当提升时会感到浑厚有力,提高声音的力度和响度。
提升过度时会使低音变得生硬,300Hz处过度提升3-6dB,如再加上混响,则会严重影响声音的清晰度。
中音:500Hz-2KHz,包含大多数乐器的低次谐波和泛音,是小军鼓和打击乐器的特征音。
适当时声音透彻明亮,不足时声音朦胧。
过度提升时会产生类似电话的声音。
中高音:2KHz-5KHz,是弦乐的特征音(拉弦乐的弓与弦的摩搡声,弹拔乐的手指触弦的声音某)。
不足时声音的穿透力下降,过强时会掩蔽语言音节的识别。
高音:7KHz-8KHz,是影响声音层次感的频率。
过度提升会使短笛、长笛声音突出,语言的齿音加重和音色发毛。
极高音:8KHz-10KHz合适时,三角铁和立叉的金属感通透率高,沙钟的节奏清晰可辨。
过度提升会使声音不自然,易烧毁高频单元。
2.平衡悦耳的声音应是:150Hz以下(低音)应是丰满、柔和而富有弹性;150Hz-50Hz(中低音)应是浑厚有力百不混浊;500Hz-5KHz(中高音)应是明亮透彻而不生硬;5KHz以上(高音)应是纤细,园顺而不尖锐刺耳。
整个频响特性平直时:声音自然丰满而有弹性,层次清晰园顺悦耳。
频响多峰谷时:声音粗糙混浊,高音刺耳发毛,无层次感扩声易发生反馈啸叫。
31段专业均衡器使用大全声场、声反馈、音色调整技巧
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31段专业均衡器使用大全声场、声反馈、音色调整技巧均衡器的主要功能就是调整音色、调整声场和抑制声反馈。
现在的专业音响系统中使用的图示均衡器通常都是31段,其推拉电位器的Q值是恒定的,一般为1/3倍频程,所以无论是提升或衰减某频率,滤波器的带宽始终是不变的,而频率提升和衰减的程度一般为6-18 dB,最常用的是12dB。
图式均衡器通过面板上推拉键的分布位置,可以非常直观地反映出各频率的提升和衰减情况。
常用的专业图示均衡器频率调节范围一般是20Hz~20kHz,频率调整点一般从低到高分为:20Hz、25Hz、32Hz、40Hz、50Hz、63Hz、80Hz、100Hz、125Hz、160Hz、200Hz、250Hz、315Hz、400Hz、500Hz、630Hz、800Hz、1kHz、1.25kHz、1.6kHz、2kHz、2.5kHz、3.15kHz、4kHz、5kHz、6.3kHz、8kHz、10kHz、12.5kHz、16kHz、20kHz共31个频点。
1使用均衡器调整声场在专业均衡器的三大主要功能当中,调整音色应该是最基本最经常用到的功能了,还有一个更重要的功能是用来调整声场和抑制声反馈的。
用专业均衡器来调整声场,专业的方法是要借助粉红噪声发生器和实时频谱仪来调整。
但我们现在大多数的音响师是不可能有这些设备的,只能就地取材,利用现有的设备想办法进行声场调整了,最简单最实用的办法就是用话筒调节了,如何利用话筒来调整声场和调整声反馈,具体调整步骤如下:1、首先找一只频响曲线较为平直、频响范围较宽的话筒,最好是电容话筒,也可以是质量比较好的动圈有线、无线话筒。
把这个话筒固定在话筒架上,放在一个声场的最佳听音区内,高度1.2米左右,话筒拾音头的水平位置与主音箱的中轴线平,基本上就是和主音箱成等腰三角型。
2、调整时要将除房间均衡器外的其它周边设备旁路直通,再把均衡器所有调节点清零,调音台上话筒所在通道的均衡器也要直通不做调整,功放打开并把音量开到合适的位置,然后打开调音台的总音量,开始慢慢往上推话筒音量推子,听到轻微的回输声时,再把话筒音量推子往下拉3—6个dB左右。
均衡器的调整方法
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均衡器的调整方法31Hz +3db 你的音箱低频响应好的话,这个段可以适当增加62Hz +1db 不能太高,否则易出现嗡嗡的混响125Hz -1db250Hz -2db500Hz -2db1kHz -2db 这四段适当减少增益可以让音乐听起来清晰度上升2kHz -1db4kHz 0db 适当提升这两段,可增加临场感,过高会听着像大喇叭。
一般不不作太大变动8kHz +1db 这段控制声音的洪亮度,可适当增高。
过高时人声会齿音过重16kHz +2db 同低频段一样,如果你的箱子高频响应好的话,适当增加会使高音得到延伸,听着更悦耳。
以上是我平时的自定义均衡设置,适合大部分流行音乐使用。
20Hz~60Hz频率:这段频率影响音色的空间感,这是因为乐音的基音大多在这段频率以上。
这段频率是房间或厅堂的谐振频率。
如果这段频率表现的充分,会使人产生一种置身于大厅之中的感受;如果这段频率缺乏,音色会变得空虚;而如果这段频率过强,会产生一种嗡嗡的低频共振的声音,严重地影响了语音的清晰度和可懂度。
30~80Hz:这一频段正是我们在的吧外所听到的底鼓的强劲有力的频段,略提升可增加震撼力。
100Hz:Bass的主要频点,在这里做提升,可增加丰满度和底鼓的击胸的感觉。
200~400hz:衰减这个频段可使人声、镲等显得清晰。
500~800hz Hz:可作3~5dB左右的提升,可增加乐曲力度。
800~2KHz:可在6dB内提升,可突出某些乐器的声音(适合听纯音乐歌曲)。
2~4KHz:这一频段的提升可让人耳听到更为突出的声音。
10KHz以上:还原现场的一些干扰声。
16K~20KHz频率:这段频率范围实际上对于人耳的听觉器官来说,已经基本听不到了,但可以感觉得到,适当的提升这段频率可增加音色的韵味、色彩、感情味。
下边列出几种常见EQ组合的特点,你可以作参考。
●POP:流行乐,它要求兼顾人声和器乐,组合比较平均,所以EQ曲线的波动不是很大。
演出前利用均衡器快速地找到啸叫点
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(网友:一个人)我在没有仪器的时候一般是这样做的:1、把所有的通道均衡都打平;2、选一去好一点的话筒,接入调音台,打开音响,推至临界啸叫点;3、下拉推子3个dB;4、从31段均衡的第一个推子开始,依次上推,找到最容易出现啸叫的频点。
有的频点推到头都不会啸叫,有的只推一点就啸叫,这个频点就是啸叫点。
其实,就是有仪器的情况下,这样用自己的耳朵再来检查一下,也是好的。
至少我是喜欢检查一下的。
搞中小型活动的一些小工程公司,很少拥有声场测试设备,同时演出系统的设备不是很完善。
2~4如(网友:喇叭杀手)1、话筒:每次调试选用一种话筒,调好再换另一种。
2、距离:话筒放在演出的表演场地的主要位置上。
3、检查音箱单元相位是否正常,检查系统连接是否正常,主扩声音箱调整到预想的电平水平,返送音箱按需要的音量设置好。
拉下主扩声,先调返送均衡。
4、先用返送的一个通道的均衡器去找反馈点,最好用双31的,调整完了一个通道后,再按同样的方法调另一个通道。
调完返送的均衡,不要关掉返送,再推起主扩声电平推杆,按上述方法调整主扩声均衡器。
(网友:hxd128)首先保证系统放音均处于正常情况下,也就是碟片放音已经正常,保证各通道都没问题了,各级电平均已调好了。
调话筒均衡,找出第一个啸叫点:话筒处于正常使用的位置,均衡器置0,各话筒通道推子至最低,开始推话筒通道推子,不要担心啸叫不会出现,更不用话筒那里留个人讲话,自然界一点轻微扰动啸叫就来了,注意一点一点来,别一下推到头,越推越小心,直到啸叫出现,此时需要做两个工作,一是记下这个位置并将话筒推子略微降一点,但要保持一定的啸叫音量供你判断,二是用耳朵听或者用频谱分析仪找出啸叫频率,啸叫就是一个纯音信号,如果你是高手(确切的说你是高耳,一听就知道是多少k),拉下话筒推子,将此频点信号的均衡器推子下拉3分贝。
这里的关键就是准确快速找到频点,正常来说一般1-2秒即可,时间长了,正反馈起来,功放或音箱就可能过载。
均衡器的调整方法
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均衡器的调整方法1.均衡器的调整方法:超低音:20Hz-40Hz,适当时声音强而有力。
能控制雷声、低音鼓、管风琴和贝司的声音。
过度提升会使音乐变得混浊不清。
低音:40Hz-150Hz,是声音的基础部份,其能量占整个音频能量的70%是表现音乐风格的重要成份。
适当时,低音张弛得宜,声音丰满柔和,不足时声音单薄,150Hz,过度提升时会使声音发闷,明亮度下降,鼻音增强。
中低音:150Hz-500Hz,是声音的结构部分,人声位于这个位置,不足时,演唱声会被音乐淹没,声音软而无力,适当提升时会感到浑厚有力,提高声音的力度和响度。
提升过度时会使低音变得生硬,300Hz处过度提升3-6dB,如再加上混响,则会严重影响声音的清晰度。
中音:500Hz-2KHz,包含大多数乐器的低次谐波和泛音,是小军鼓和打击乐器的特征音。
适当时声音透彻明亮,不足时声音朦胧。
过度提升时会产生类似电话的声音。
中高音:2KHz-5KHz,是弦乐的特征音(拉弦乐的弓与弦的摩搡声,弹拔乐的手指触弦的声音某)。
不足时声音的穿透力下降,过强时会掩蔽语言音节的识别。
高音:7KHz-8KHz,是影响声音层次感的频率。
过度提升会使短笛、长笛声音突岀,语言的齿音加重和音色发毛。
极高音:8KHz-10KHz合适时,三角铁和立叉的金属感通透率高,沙钟的节奏清晰可辨。
过度提升会使声音不自然,易烧毁高频单元。
2. 平衡悦耳的声音应是:150Hz以下(低音)应是丰满、柔和而富有弹性;150Hz-50Hz (中低音)应是浑厚有力百不混浊;500Hz-5KHz (中高音)应是明亮透彻而不生硬;5KHz以上(高音)应是纤细,园顺而不尖锐刺耳。
整个频响特性平直时:声音自然丰满而有弹性,层次清晰园顺悦耳。
频响多峰谷时:声音粗糙混浊,高音刺耳发毛,无层次感扩声易发生反馈啸叫。
3 .频率的音感特征:30〜60Hz沉闷如没有相当大的响度,人耳很难感觉。
60〜100Hz沉重80Hz附近能产生极强的“重感”效果,响度很高也不会给人舒服的感觉, 可给人以强烈的刺激作用。
DIGISYNTHETIC PRO DS231A 中文说明书
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31DIGISYNTHETIC PRO 中文说明书DS231A 31双段图示均衡器(针对火灾,电击或伤害人体的指示)注意-:1.2.-3.4.-5.6.7.8.9.10.11.A.B.C.D.E.12.13.-使用该电器产品时,有以下基本的预防措施:以下包括使用该产品前请详细阅读全部的安全事项;本产品应当接地,如果出现故障时,电流经最小的接地电阻流入大地,以减小电击;本产品的电源线和电源插头都配备安全接地,电源插头应当牢固插入适当的电源座,此电源座应当完全按当地的条例来安装和接地。
接地装置连接不当会导致电击;如果你对产品是否正确接地存在任何疑问,请委托合格电工或维修人员检查;请不要尝试私自更改产品的电源插头,如果不适合电源插座,可委托合格电工安装适当的电源插座。
为了减小伤害的风险,当产品在小孩附近使用时,要严密监管;请勿在湿度很大的地方使用机器例如靠近浴缸,洗面盆,厨房水槽,警告湿度很大的地下室或者靠近游泳池和湖泊。
该产品应当安装于通风良好的地方。
该产品必须远离热源,例如电暖炉,电热毯或者其它产生热量的产品。
该产品的电源类型必须符合操作指示或者产品上标明的类型。
该产品要配备一条两端的电源线(一端的插片长过另一端)。
这是安全装置。
如果你无法把电源插头插入电源插座,请联系电工来更换旧插座。
请勿破坏电源插头的安全装置。
长时间不使用时,请把电源线从电源插座中拔出,从电源插座拔出电源线时,请勿拉扯电源线,应当抓住电源插头将其拔出。
细心护理,请勿让杂物或液体从其缝隙掉进机内。
当有下列情况时,应委托合格维修人员修理:电源线或电源插头已被损坏;杂物或液体已掉进机内;产品已被雨淋;产品已不能正常操作或在演出中出现明显变化;产品已跌坏或外观损坏当出现没在用户维修指南中描述的情况时,请勿尝试私自修理,应当委托合格的维修人员修理。
警告勿让重物积压或踩踏电源线,切忌拉、拨或强力扭曲电源线。
请勿滥用电源线,不合格的电源线可能导致火灾或对人构成伤害。
31段EQ均衡器的调整合理区
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导读:31段均衡器是调音台上必备的功能之一,专业的调音师在面对充满噪音的音乐活动现场通过它能够对各种不同频率的电信号的调节来补偿扬声器和声场的缺陷,补偿和修饰各种声源及其它特殊作用。
超低音:20Hz-40Hz,适当时声音强而有力。
能控制雷声、低音鼓、管风琴和贝司的声音。
过度提升会使音乐变得混浊不清。
低音:40Hz-150Hz,是声音的基础部份,其能量占整个音频能量的70%,是表现音乐风格的重要成份。
适当时,低音张弛得宜,声音丰满柔和,不足时声音单薄,150Hz,过度提升时会使声音发闷,明亮度下降,鼻音增强。
中低音:150Hz-500Hz,是声音的结构部分,人声位于这个位置,不足时,演唱声会被音乐淹没,声音软而无力,适当提升时会感到浑厚有力,提高声音的力度和响度。
提升过度时会使低音变得生硬,300Hz处过度提升3-6dB,如再加上混响,则会严重影响声音的清晰度。
中音:500Hz-2KHz,包含大多数乐器的低次谐波和泛音,是小军鼓和打击乐器的特征音。
适当时声音透彻明亮,不足时声音朦胧。
过度提升时会产生类似电话的声音。
中高音:2KHz-5KHz,是弦乐的特征音(拉弦乐的弓与弦的摩搡声,弹拔乐的手指触弦的声音某)。
不足时声音的穿透力下降,过强时会掩蔽语言音节的识别。
高音:7KHz-8KHz,是影响声音层次感的频率。
过度提升会使短笛、长笛声音突出,语言的齿音加重和音色发毛。
极高音:8KHz-20KHz,合适时,三角铁和立*的金属感通透率高,沙钟的节奏清晰可辨。
过度提升会使声音不自然,易烧毁高频单元。
平衡悦耳的声音:150Hz以下(低音)应是丰满、柔和而富有弹性150Hz-500Hz (中低音)应是浑厚有力百不混浊;500Hz-5KHz(中高音)应是明亮透彻而不生硬;5KHz以上(高音)应是纤细,园顺而不尖锐刺耳。
整个频响特性平直时:声音自然丰满而有弹性,层次清晰园顺悦耳。
频响多峰谷时:声音粗糙混浊,高音刺耳发毛,无层次感扩声易发生反馈啸叫。
XL 231
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XL 231双路31段45mm长行程大动态均衡器美国ART XL-231 双路31段45mm长行程大动态均衡器XL231是ART均衡器系列中的旗舰型号。
它了采用高质数精密配件,并配备了各种先进实用的功能。
从而保证了高精确度和动态大的优势。
并且奠定了它符合现场演出工程系统使用的可靠均衡器。
利用XL231可以非常有效地控制不同场合产生的反馈。
另外,由于观众人数的变化,又或者是场地的温度和湿度等的变化,对声音产生了影响(例如对声音的吸收)。
只要采用Xl231便可轻易地调校声音的高低频去满足整个声场效果。
因此,为了解决声场较差的环境又或者比较难调校的现场演工程问题,XL231已经成为一台最适合固定安装工程和现场演出工程的均衡器。
技术特性:1、带中央定位2、恒定Q值滤波器3、XLR,排状接线端子和1/4"接口4、电源关闭的自动中继旁路5、增强切换可使窄频段控制回声6、高精确度滤波器。
2%薄膜电容器,1%电阻器7、低频切换滤波8、低噪音设计9、20V电压供电余量10、低噪音,加上大于123分贝动态范围的余量值11、坚固的机壳12、2x31波段3U高度机壳13、金属电位器轴杆。
混音器款式推子·产品规格尺寸: 203mm(深)x482mm(宽)x133mm(高)重量: 5.4KG均衡频段: 2x31 1/3倍频程类型/精确度:恒定Q值,中心频率3% 推子行程:中心距45mm提升/衰减率: +/-6dB和+/-12dB可选范围: (+/-6dB)或(+/-12dB)可选w/增强(+6/-9dB)或()+12/-18dB可选总体增益范围:关至+6dB输入类型:有源平衡接口,3-针型XLR插口,1/4”TRS阻抗: 9.4K欧(平衡)最大电平: +22dBu(EQ和电平控制中心) 输出类型: XLR,有源平衡1/4”TRS阻抗平衡接口 3-针型XLR,1/4”TRS阻抗: <200欧最大电平: +26dBu射频滤波器:有分频旁路开关:有限幅LED阈值: 3dB(向下限幅)高通滤波器: 10~250Hz-12dB/倍频程高频调整: +/-4dB@10KHz低频调整: +/-4dB@40KHz频率响应: +0/-0.25dB 20~20KHz失真+噪声:小于96dB动态余量: +24dB,反射,0dB线路电压: 95~125V AC,50Hz/60Hz,190~2504V AC,50/60Hz输入AC功率: 31W。
31段均衡器调节方法
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31段均衡器调节方法没有仪器靠耳朵调,声音浑浊减60-80,低音压耳减125,中音过厚减400,500,中频打耳朵减1250-2000,人声太突出减3K,高频刺耳减4-6K,齿音太重减8K,高音发毛减12-16K。
反过来,低频不丰满加60-80,力度不足加125,人声单薄加200-400,声音发虚加1K附近,人声位置偏后,提3K,声音不亮,不通透加4-8K,空间感不足加12-16K。
低音太硬减160-200,男声喉音重减200,鼻音重减250。
在音乐节目的频域内,各个频段都有其独立的作用,对各段频率的提升或衰减都会使乐音的内含发生变化,下面我们把全音频分成六段作具体分析:(1)16—80HZ(超低音)的频率段,能给音乐带来强有力的感觉,尤其在20Hz以下的频率,可以加强空气振动感,过多地提升会使声音混浊不清。
但在我们语音的重放过程中,该段频率一般是无法重放出来的。
(2)80—250Hz(低音)的频率段,包含着语音中各声部的基础音,对这段频率的调整可改变音乐的平衡状态,使其趋向丰满或单薄,过多地提升会引发“隆隆”声(低频嗡声RUMBLE)。
为了加强一些声功率较弱的乐器演奏的丰满度,在人声的处理过程中,通常男低音的频率可以下到100Hz以下,但在切除100Hz以下的频率时,可消除低频噪音,使音色更纯净。
100-160Hz的频率多时,人声会低沉,沉闷。
(3)250HZ—2KHZ(中音)的频率段,包含着大多数声部的低次谐波,250-500Hz影响音色的力度和结实度。
330HZ给人声的坚实感,使低音柔和丰满。
但提升过多,会产生“嗡嗡”的浴室效应。
500—800多会使音色生硬。
如果在800Hz—2KHz 范围内加上个很宽的提升峰值,可以使声音更突出。
Tweeq双31段图示均衡器
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2SAFETY INSTRUCTIONS1. Read Instructions — All the safety and operation instructionsshould be read before this product is operated.2. Retain Instructions — The safety and operating instructionsshould be kept for future reference.3. Heed Warnings — All warnings on this product and in theseoperating instructions should be followed.4. Follow Instructions — All operating and other instructionsshould be followed.5. Water and Moisture — This product should not be used nearwater – for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, near a swimming pool, etc.6. Cleaning — Clean only with a dry cloth.7. V entilation — This product should be situated so that its locationor position does not interfere with its proper ventilation. For example, the Component should not be situated on a bed, sofa, rug, or similar surface that may block any ventilationopenings, or placed in a built-in installation such as a bookcase or cabinet that may impede the fl ow of air through ventilation openings.8. Heat — This product should be situated away from heatsources such as radiators, or other devices which produce heat.9. Power Sources — This product should be connected to apower supply only of the type described in these operation instructions or as marked on this product. 10. Power Cord Protection — Power supply cords should be routedso that they are not likely to be walked upon or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit this product. 11. Object and Liquid Entry — Care should be taken so thatobjects do not fall on, and liquids are not spilled into, this product.12. Damage Requiring Service — This product should be servicedonly by qualifi ed service personnel when: A. The power-supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has spilled into this product; or C. This product has been exposed to rain; orD. This product does not appear to operate normally or exhibits a marked change in performance; orE. This product has been dropped, or its chassis damaged.13. Servicing — The user should not attempt to service thisproduct beyond those means described in this operating manual. All other servicing should be referred to the Tapco Service Department.14. To prevent electric shock, do not use this polarized plug withan extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure.Pour préevenir les chocs électriques ne pas utiliser cette fi che polariseé avec un prolongateur, un prise de courant ou une autre sortie de courant, sauf si les lames peuvent être insérées à fond sans laisser aucune pariie à découvert.15. Grounding or Polarization — Precautions should be taken sothat the grounding or polarization means of this product is not defeated.16. Power Precaution — Unplug this product during lightningstorms or when unused for long periods of time.17. This apparatus does not exceed the Class A/Class B(whichever is applicable) limits for radio noise emissions from digital apparatus as set out in the radio interferenceregulations of the Canadian Department of Communications.ATTENTION —Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant las limites applicables aux appareils numériques de class A/de class B (selon le cas) prescrites dans le règlement sur le brouillage radioélectrique édicté par les ministere des communications du Canada.The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage ” within the product ’s enclosure that may beof sufficient magnitude to constitute a risk of electric shock to persons. Le symbole éclair avec point de fl èche à l'int érieur d'un triangle équilat éral est utilis é pour alerter l'utilisateur de la pr ésence à l'int érieur du coffret de “voltage dangereux ” non isol é d'ampleur suffisante pour constituer un risque d'él éctrocution.The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. Le point d'exclamation à l'int érieur d'un triangle équilat éral est employ é pour alerter les utilisateurs de la pr ésence d'instructions importantes pour le fonctionnement et l'entretien (service) dans le livret d'instruction accompagnant l'appareil.Part No. 0009427 Rev. A 1/04©2004 LOUD Technologies Inc. All Rights Reserved.3What me, read a manual?Before you begin, please make sure you read the Safety Instructions on page 2 and Getting Started on page 4.Your new TAPCO ® T •231 is designed to set up quickly and operate easily. We know it ’s often seen as a sign of weakness to read a manual, along with asking for directions when lost, but maybe you can read the rest when nobody is looking.It is important to keep your receipt in a safe place, and not a bad idea to write your product information here for future reference (i.e., insurance claims, tech support, return authorization, etc.).Duration Per Day Sound Level dBA, TypicalIn Hours Slow ResponseExample8 90 Packed garage concert 6 924 95 VW Bus Peace Train 3 97 2 100 Cranked psychedelic tunes 1.5 102 1105 High speed chase on C.H.I.P .s 0.51100.25 or less115Loudest parts at a Heavy Metal concertProduct Serial #:Purchased at:Date of purchase:18. Exposure to extremely high noise levels may cause permanenthearing loss. Individuals vary considerably in susceptibility to noise-induced hearing loss, but nearly everyone will lose some hearing if exposed to suf fi ciently intense noise for a period of time. The U.S. Government ’s Occupational Safety and Health Administration (OSHA) has speci fi ed the permissible noise level exposures shown in the following chart.According to OSHA, any exposure in excess of these permissible limits could result in some hearing loss. To ensure against potentially dangerous exposure to high sound pressure levels, it is recommended that all persons exposed to equipment capable of producing high sound pressure levels use hearing protectors while the equipment is in operation. Ear plugs or protectors in the ear canals or over the ears must be worn when operating the equipment in order to prevent permanent hearing loss if exposure is in excess of the limits set forth here.Getting StartedThe following steps will help you set up your T•231, and get the levels just right.SETTINGS:1.Be sure the T•231’s POWER switch is off.2.Set all the sliders to their center positions and all theswitches out.CONNECTIONS:1. Using balanced or unbalanced cables, connectyour mixer’s main outputs to the T•231’s inputs,and the T•231’s outputs to your amplifer’s (orpowered speakers’) inputs.If you are using the T•231 in a channel’s insert,connect your mixer’s channel inserts to yourT•231’s INPUTs and OUTPUTs.Note: The T•231 31-Band GraphicEqualizer is designed to be inserted“in-line” with the signal as aserial device. This means that theentire signal is routed through theprocessor, in contrast to a parallel device where the processed signal is mixed back with the unprocessed signal, like a reverb or echo.2. Connect the cables using either XLR or 1/4”TRS connectors (balanced), or 1/4” TS or RCAconnectors (unbalanced).• The XLR, TRS, and RCA inputs for each channelare wired in parallel. Use only one input per channel.• The XLR, TRS, and RCA outputs for each channel are wired in parallel.• The balanced XLR connectors are wired asfollows:Pin 1 = shield (ground)Pin 2 = hot (+)Pin 3 = cold (–)• The 1/4” TRS connectors are wired as follows:Tip = hot (+)Ring = cold (–)Sleeve = shield (ground)3. Plug all the sound system components into suitableAC outlets, properly grounded and capable ofdelivering adequate current.4. Turn all the equipment on. If you are monitoring thesignal through speakers, turn the power amplifi eron last to avoid getting any pops or thumpsthrough your speakers. SET THE CONTROLS:1.Make sure your signal source is turned up anddelivering signal to the T•231. The signal shouldpass through the T•231 unaffected because theCHAN 1 and 2 BYPASS buttons are out and thesignal processing circuitry is bypassed.2.Push in the CHAN 1 and 2 BYPASS buttons toenable the graphic equalizer circuits.3.You can turn up and down each individual sliderand hear how it affects the sound.4.You can turn up and down the input LEVEL controlsto make it louder or softer. When the LEVEL control is at the center detent, it is at unity gain (it doesn’t boost or cut the signal).Things To Remember:• When you shut down yourequipment, turn off the amplifi ersfi rst. When powering up, turn on theamplifi ers last.• Save the shipping box andpacking material! You may need itsomeday.CLOSER4ContentsSafety Instructions (2)Getting Started (4)Introduction (6)Hookup Diagrams (8)Typical Hookup: In-line with Main Outputs (8)Alternate Hookup: Individual Channel or Main Inserts ..8T•231 Features (9)FRONT PANEL FEATURES (9)1. EQ Sliders (9)2. Input LEVEL (9)3. HI-PASS (9)4. LOW-PASS (9)5. BYPASS (9)6. CLIP (9)7. RANGE (9)8. POWER (9)REAR PANEL FEATURES (10)9. Line Cord Socket and Fuse (10)10. AC Select Switch (10)11. GND LIFT Switch (10)12. OUTPUTS (10)13. INPUTS (10)GENERAL PRECAUTIONS AND CONSIDERATIONS (11)Rack Mounting (11)Thermal Considerations (11)AC Power Considerations (11)Appendix A: Service Information (12)Warranty Service (12)Troubleshooting (12)Repair (13)Appendix B: Connections (14)Appendix C: Technical Info (15)T•231 Specifi cations (15)T•231 Block Diagram (16)Frequency Chart (18)TAPCO LIMITED WARRANTY (19)Don’t forget to visit our website at for more information about this and other TAPCO products.5IntroductionThank you for choosing a TAPCO® Tweeq™ 31-band graphic equalizer by Mackie®. The TAPCO product line hails back to thedays of TAPCO Corporation, Greg Mackie’s fi rst company. TAPCO revolutionized the audio industry back in 1969 with the very fi rst 6-channel mixer specifi cally designed for keyboards and rock ‘N’ roll PA.In essence, TAPCO redefi ned the price performance ratio and made high-quality professional audio mixers accessible to virtually anyone. Today, TAPCO is reborn with the same ideals and is backed by the world-class engineering and manufacturing horsepower of Mackie. The TAPCO T•231 is the first graphic equalizer in the TAPCO by Mackie® family.About Graphic EqualizersThe tone controls on your home stereo system typically have a bass and treble control, and sometimes a midrange control, that you use to boost or cut a broad band offrequencies. When you leave the controls in the center position, they do nothing.A graphic equalizer works in much the same way, except that it has many more controlsthat operate over much narrower frequency bands. The T•231 has 31 controls that boost or cut different frequencies, each centered on ISO standard frequencies ranging from 20 Hz to 20 kHz and affecting 1/3 of an octave.Constant Q DesignThe T•231 is designed with constant Q fi lters. The Q of a fi lter refers to its quality. A fi lter with a low Q affects a broader band of frequencies than a fi lter with a high Q (Q=f c/BW, for you technoids!). Constant Q means that, as a slider is boosted or cut, the bandwidth of the fi lter (the “skirt” of the affected frequencies) remains the same. Lower quality proportional Q fi lters have a broader bandwidth as the fi lter is boosted or cut, which can extend out to an octave or more.Whazzit Used For?There are a number of uses for graphic equalizers in a sound system. They can be used to correct the frequency response of a loudspeaker, or to adjust for resonant peaks and dips in a room. Sometimes they are used to simply bring out the characteristics of a voice or instrument to improve the intelligibility and articulation of the sound.In any case, please remember that a graphic equalizer is a tool that can be used to improve the overall sound, but it cannot make up for frequency response defi ciencies caused by poor system design or poor acoustics. Try and get the best possible soundfrom the system before attempting to use equalization by paying attention to proper gain structure and loudspeaker placement. Often times just moving a loudspeaker to a different position can have a dramatic effect on the overall sound in the room.Probably the most common use of a graphic equalizer is placing it in-line between the mixing board’s main outputs and the power amplifi er inputs (see hookup diagram on page 8).When used with a real-time analyzer and pink noise generator, it can be used to fi ne tune the acoustic frequency response and get it as fl at as possible in a room.TAPCO version of GregTAPCO van (a.k.a. micro bus)6However, often times a perfectly fl at frequency response is not what you want in a live sound application. For example, if the low-frequency response of the loudspeakers only extends to 50 Hz, there is no need to amplify the frequencies in the lowest octave of theaudio frequency range, 20 Hz to 40 Hz. You can use the T•231 to roll off these frequencies, which reduces the drain on the amplifi er and provides more power to amplify the higher, more useful frequencies.You might want to boost the higher frequencies a bit to add brightness and sizzle to the sound. If the sound system is for the speaking voice, boosting the mid frequencies around2-4 kHz can improve the intelligibility of the voice. Boosting 125 Hz, 250 Hz, and 16 kHz can improve a vocal. Try as you might to eliminate it, there may still be a residual 60-cycle humin the speakers. You can use the 63 Hz slider to notch down the hum (the 125 Hz slider canhelp eliminate residual buzz).A graphic equalizer can be used to reduce feedback. If you don’t have a real-time analyzer to identify the peaks that cause the feedback, you can do a fairly good job byear using the following procedure.1. Set all the sliders on the T•231 to the center position (zero).2. Slowly turn up the master volume on the mixer until feedback just begins to occur.You can usually hear a soft ringing sound that gradually increases in volume. BUT BECAREFUL! Feedback can occur quickly and become very LOUD, very fast.3. Cut the appropriate slider, corresponding to the feedback frequency, until feedbackstops. It may take some practice to identify the frequency where the feedback isoccurring, but your accuracy will improve the more familiar you become with it.4. Repeat until you can’t isolate a specifi c frequency in the feedback.This procedure helps to minimize the resonant peaks in the room. It’s a little more diffi cultto identify and adjust for dips in the room response. This is best done from experiencelistening for gaps in the sound of particular instruments or voices. Once you’ve identifi ed them, boost the slider for that particular frequency range by 3 to 6 dB to help smooth the frequency response.Another application for a graphic equalizer is patching it into a channel insert toenhance the sound or change the tonal characteristics of a vocal or instrument (seehookup diagram). The Sound Frequency chart on page 18 is a good reference to locatethe frequency ranges of particular voices and instrument.The Tweeq Series™ of processors are powerful and tough. They are designed towithstand the punishing rigors of the road and continue to perform day after day, yearafter year.Here’s a quick glance at the features packed into the T•231:•2-channel 31-band graphic equalizer with constant Q circuitry and great sound quality•Switchable 6 and 12 dB control range for wide or fi ne tweaking• High-pass fi lter @ 40 Hz to remove unwanted low frequencies• Low-pass fi lter @ 16 kHz to remove unwanted high frequencies•Bypass switch allows quick A/B comparisons•Independent signal clip indicators on each channel•Input gain control for EQ signal compensation•Balanced 1/4" TRS and XLR, and unbalanced RCA input and output jacks•Selectable line voltage7Hookup DiagramsTypical Hookup:In-line with Main OutputsFROM MIXINGCONSOLE LEFT ANDRIGHT MAIN OUTPUTSTO POWER AMPLIFIER ORPOWERED SPEAKERS INPUTSAlternate Hookup:Individual Channel or Main Inserts895. BYPASSThis button effectively disables the EQ circuits. You can use this button to compare the EQ ’d signal to the unprocessed signal. When the BYPASS button is pushed in, the LED below the BYPASS button lights.6. CLIPThis LED lights when the output signal is within 5 dB of clipping. It is okay if the CLIP LED blinks occasionally, but if it blinks frequently or stays lit all the time, turn down either the LEVEL control or the output signalfrom the mixer or other device immediately preceding the T •231.7. RANGEThis determines the maximum boost and cut of the EQ sliders, either ±12 dB or ± 6 dB (pushed in). The corresponding LED below the RANGE button indicates the setting.The 12 dB setting provides more boost and cut if it is needed for more drastic EQ requirements . The 6 dB setting provides less boost and cut, but allows you to fi ne tune the controls with more precision.8. POWERUse this switch to turn the T •231 on and off. The LED above the switch lights when the power is on.FRONT PANEL FEATURESThe controls for Channels 1 and 2 are the same, so these descriptions apply to both channels.1. EQ SlidersWhen the EQ sliders are in the center position, they have no effect on the signal. Move a slider up ordown to boost or cut a particular frequency by up to ±12 dB (±6 dB when the RANGE switch is set to 6 dB).2. Input LEVELUse the Input LEVEL control to adjust the gain of the signal as it passes through the T •231. When the Input LEVEL control is in the center position, it provides no gain (unity gain). When the slider is all the way down the signal is off (-∞), and all the way up provides 17 dB of gain.3. HI-PASSThis button is used to roll-off the frequencies below 40 Hz. The LED below the button lights to indicate when the HI-PASS fi lter is turned on.This is useful to reduce stage rumble (low-frequency noise from footsteps picked up by microphones on stage) and microphone-handling noise.If the T •231 is used with monitor speakers, turning on this button can reduce the muddiness caused by the lows from the stage monitors feeding back into the main output through the microphones.4. LOW-PASSUse this button to roll-off the frequencies above 16 kHz. The LED below the button lights to indicate when the LOW-PASS fi lter is turned on.This is useful to remove hiss and high-frequency noise from the signal.REAR PANEL FEATURES9. Line Cord Socket and FuseHere is where you connect the detachable line cord that came in the box with your T•231. Plugthe other end of the line cord into an AC outlet properly confi gured with the voltage required for your particular model (see AC Select Switch next).The fuse is located behind the fuse cover, at the bottom of the IEC socket. See the “Troubleshooting”section on page 12 for information about replacing the fuse.10. AC Select SwitchSet this switch to the correct voltage setting for the country you are in, 115 V AC or 230 V AC.Note: The T•231 is shipped with the AC Select switch set to the 230 V AC position. If you are in a country that uses 100-120 V AC, remove the cover plate with a phillips-head screwdriver and set the switch to the 115 V AC position. A 315 mA fuseis used for both voltages (115V/230V). See the “Troubleshooting” section on page 12 for instructions on replacing the fuse.11. GND LIFT SwitchWhen the switch is in the GND position, the audio ground is electrically connected to the chassis “safety” ground. Normally, this is how the switch is set.However, occasionally a ground loop can be created in a system where the signal ground is connected to chassis ground, which can cause a hum or buzz to appear in the audio signal. If this isthe case, try moving the switch to the LIFT position to eliminate the hum or buzz.12. OUTPUTSThree types of connectors are provided for the outputs — balanced male XLR and 1/4” TRS (Tip-Ring-Sleeve), and unbalanced RCA. These balanced outputs are in parallel, and provide exactly the same signal on all three outputs, regardless of which input jack is used. You can connect either a balanced TRS connector or an unbalanced TS connector to the 1/4”output jack.13. INPUTSThree types of connectors are provided for the inputs — balanced female XLR and 1/4” TRS (Tip-Ring-Sleeve), and unbalanced RCA. These inputs are in parallel, so do not connect more than one signal at a time to the input jacks for each channel. You can connect either a balanced or an unbalanced signal to the 1/4” input jack.See “Appendix B: Connections” on page 14 for information on input and output connection wiring.1011GENERAL PRECAUTIONS AND CONSIDERATIONSRack MountingThe T •231 is designed to be mounted in a standard rack. It requires two rack spaces (2U = 3.5”). It also requires 7.5” depth inside the rack, not counting the rear connectors. When designing your rack, put the heavier items at the bottom and the lighter items toward the top.Secure the front panel of the T •231 to the front of the rack using four screws with soft washers to prevent scratching the panel.Thermal ConsiderationsAvoid mounting the T •231 directly over devices that produce heat, such as power ampli fi ers. As with all electronic components, it is best to provide cool air circulation around the T •231 to avoid overheating. The ambient temperature should not exceed 113˚ F (45˚ C).AC Power ConsiderationsBe sure the T •231 is plugged into an AC outlet that is able to supply the speci fi ed voltage, and the AC Select switch is set to the correct voltage.Be sure the AC outlet can supply enough current to allow full power operation of all the components plugged into it, especially if there are power ampli fi ers plugged in. The outlet should be a three-prong socket that matches the power cord.WARNING: Bypassing the plug ’s safety ground pin can be dangerous. Don ’t do it!Appendix A: Service InformationWarranty ServiceDetails concerning Warranty Service are spelled out in the Warranty section on page 19.If you think your T•231 has a problem, please do everything you can to confi rm it before calling for service. Doing so might save you from the deprivation of your equalizer and the associated suffering.These may sound obvious to you, but here are some things you can check. Read on.TroubleshootingNo Power•Our favorite question: Is it plugged in? Make sure the AC outlet is live (check with a tester or lamp).•Our next favorite question: Is the POWER switch on? If not, try turning it on.•Is the red LED above to the POWER switch illuminated? If not, make sure the AC outlet is live.If so, refer to “No Sound” below.•Is the fuse blown? If the POWER LED on the front panel is not illuminated and you are certain thatthe AC outlet is live, if is possible the fuse has blown. To remove and replace the fuse:1.Disconnect the line cord from the IEC socket.2.Remove the fuse drawer by prying it open with a3.Remove the fuse and replace it with anequivalent-type fuse:315 milliamp slo-blo (T315 A/250 V)Note: The same fuse is used for both 115 V AC and 230 V AC operation.4.Replace the fuse drawer by pushing it all the wayback into the IEC socket.5.Reconnect the line cord and turn the POWERswitch on.If two fuses blow in a row, then something is wrong.See the “Repair” section on the next page to fi nd out what to do.No Sound•Is the signal source turned up? Make sure the signal level from the mixing console (or whatever device immediately precedes the T•231) is highenough to produce sound through the system.•Are you using the T•231 with an insert plug in an insert jack? Make sure that you are using an insert cable, and not a mono Y-cable.Poor sound•Is it loud and distorted? Turn down the signal coming from the mixer or signal source.•Is the input connector plugged completely into the jack? Make sure all connections are good and sound.•Switch the BYPASS switch in and out to compare the sound with the equalizer in the signal path and out of the signal path. This can help determine ifthe problem is with the T•231 or elsewhere in thesystem.Noise/Hum•Check the signal cable between the mixer and the T•231. Make sure all connections are goodand sound.•Make sure the signal cable is not routed near AC cables, power transformers, or other EMI-inducing devices.•Is there a light dimmer or other SCR-based device on the same AC circuit as the T•231? Use an AC line fi lter, or plug the T•231 into a different ACcircuit.12135. Include a legible note stating your name, shippingaddress (no P.O. boxes), daytime phone number, RA number, and a detailed description of the problem, including how we can duplicate it.6. Write the RA number in BIG PRINT on top of the box.Units sent to us without the RA number will be refused.7. Ship the T •231 to us. We suggest insurance for allforms of cartage. Ship to this address:TAPCOSERVICE DEPARTMENT 16220 Wood-Red Road NE Woodinville, WA 980728. We ’ll try to fi x the T •231 within fi ve business days.Ask Tech Support for the latest turn-around times when you call for your RA number. The T •231 must be packaged in its original packing box, and must have the RA number on the box. Once it ’s repaired, we ’ll ship it back the same way in which it was received. This paragraph does not necessarily apply to non-warranty repair.RepairService for TAPCO products is available from one of our authorized domestic service centers or at our factory, located in sunny Woodinville, Washington. Service for TAPCO products living outside the United States can be obtained through local dealers or distributors.If your T •231 needs service, follow these instructions:1. Review the preceding troubleshooting suggestions.Please.2. Call Tech Support at 1-877-827-2669, 7 am to 5 pmPST, to explain the problem and request an RA (Return Authorization) number. Have your T •231’s serial number ready. You must have an RA number before you can obtain warranty service at the factory or an authorized service center.3. Keep this owner ’s manual and the detachable linecord. We don ’t need them to repair the T •231.4. Pack the T •231 in its original package, includingendcaps and box. This is very important. When you call for the RA number, please let TechSupport know if you need new packaging. You can order new packaging through our partsdepartment. LOUD Technologies is not responsible for any damage that occurs due to non-factory packaging.Lonely? Looking for that special someone? Do you have a question about your TAPCO product?Please call our Technical Support folks at 1-877-827-2669, Monday to Friday, from 7 am to 5 pm PST.After hours, visit and look under Support , or e-mail us at techmail@。
双31段均衡器设置方法
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英文名称Equalizer相关简介均衡器是一种可以分别调节各种成分电信号放大量的电子设备,通过对各种不同频率的电信号的调节来补偿扬声器和声场的缺陷,补偿和修饰各种声源及其它特殊作用,一般上的均衡器仅能对高频、中频、低频三段频率电信号分别进行调节。
在通信系统中,在系带系统中插入均衡器能够减小码间干扰的影响。
调整方法超低音20Hz-40Hz,适当时声音强而有力。
能控制雷声、低音鼓、管风琴和贝司的声音。
过度提升会使音乐变得混浊不清。
低音40Hz-150Hz,是声音的基础部份,其能量占整个音频能量的70%,是表现音乐风格的重要成份。
适当时,低音张弛得宜,声音丰满柔和,不足时声音单薄,150Hz,过度提升时会使声音发闷,明亮度下降,鼻音增强。
中低音150Hz-500Hz,是声音的结构部分,人声位于这个位置,不足时,演唱声会被音乐淹没,声音软而无力,适当提升时会感到浑厚有力,提高声音的力度和响度。
提升过度时会使低音变得生硬,300Hz处过度提升3-6dB,如再加上混响,则会严重影响声音的清晰度。
中音500Hz-2KHz,包含大多数乐器的低次谐波和泛音,是小军鼓和打击乐器的特征音。
适当时声音透彻明亮,不足时声音朦胧。
过度提升时会产生类似电话的声音。
中高音2KHz-5KHz,是弦乐的特征音(拉弦乐的弓与弦的摩搡声,弹拔乐的手指触弦的声音某)。
不足时声音的穿透力下降,过强时会掩蔽语言音节的识别。
高音7KHz-8KHz,是影响声音层次感的频率。
过度提升会使短笛、长笛声音突出,语言的齿音加重和音色发毛。
极高音8KHz-10KHz,合适时,三角铁和立*的金属感通透率高,沙钟的节奏清晰可辨。
过度提升会使声音不自然,易烧毁高频单元。
平衡悦耳的声音应是150Hz以下(低音)应是丰满、柔和而富有弹性;150Hz-500Hz(中低音)应是浑厚有力百不混浊;500Hz-5KHz(中高音)应是明亮透彻而不生硬;5KHz以上(高音)应是纤细,园顺而不尖锐刺耳。
31段均衡调试方法
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EQ的基本定义EQ是Equalizer的缩写,大陆称为均衡器,港台称为等化器。
作用是调整各频段信号的增益值。
10段均衡器表示有10个可调节节点。
节点越多,便可以调节出更精确的曲线,同时难度更大。
从左到右的顺序是从低频到高频[100Hz, 200Hz, 400Hz, 600Hz, 1KHz, 3KHz, 6KHz, 12KHz, 14KHz, 16KHz]。
EQ各频段的基本知识1.[20-60Hz]影响音色的空间感,因为乐音的基音大多在这段频率以上,这段很难表现,powermp3没有这段均衡。
2.[60-100Hz]影响声音的混厚感,是低音的基音区。
如果这段频率很丰满,音色会显得厚实、混厚感强,如果不足,音色会变得无力;而如果过强,音色会出现低频共振声,有轰鸣声的感觉。
有大鼓、定音鼓,还有钢琴、大提琴、大号等少数存在极低频率的乐器多表现在此段。
3.[80-160Hz]主要表现音乐的厚实感,音响在这部分重放效果好的话,会感到音乐厚实、有底气。
这部分表现得好的话,在80Hz以下缺乏时,甚至不会感到缺乏低音。
如表现不好,音乐会有沉闷感,甚至是有气无力许多低音炮音箱的重放上限,具此可判断您的低音炮音箱频率上限。
4.[150-300Hz]影响声音的力度,尤其是男音的力度。
这段频率是男声声音的低频基音频率,同时也是乐音中和弦的根音频率。
5.[300-500Hz]表现人声的(唱歌、朗诵),这个频段上可以表现人声的厚度和力度,好则人声明亮、清晰,否则单薄、混浊。
6.[800Hz]影响音色的力度。
如果这个频率丰满,音色会显得强劲有力;如果不足,音色将会显得松弛,也就是800Hz以下的成分特性表现突出了,低频成分就明显;而如果过多,则会产生喉音感。
如果喉音过多了,则会失掉语音的个性,适当的喉音则可以增加性感,因此,音响师把这个频率称为"危险频率",人声,打击乐多表现于此。
7.[1kHz]是音响器材测试的标准参考频率,通常在音响器材中给出的参数是在1kHz下测试。
段均衡器调节方法
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段均衡器调节方法 Modified by JACK on the afternoon of December 26, 202031段均衡器调节方法没有仪器靠耳朵调,声音浑浊减60-80,低音压耳减125,中音过厚减400,500,中频打耳朵减1250-2000,人声太突出减3K,高频刺耳减4-6K,齿音太重减8K,高音发毛减12-16K。
反过来,低频不丰满加60-80,力度不足加125,人声单薄加200-400,声音发虚加1K附近,人声位置偏后,提3K,声音不亮,不通透加4-8K,空间感不足加12-16K。
低音太硬减160-200,男声喉音重减200,鼻音重减250。
在音乐节目的频域内,各个频段都有其独立的作用,对各段频率的提升或衰减都会使乐音的内含发生变化,下面我们把全音频分成六段作具体分析:(1)16—80HZ(超低音)的频率段,能给音乐带来强有力的感觉,尤其在20Hz以下的频率,可以加强空气振动感,过多地提升会使声音混浊不清。
但在我们语音的重放过程中,该段频率一般是无法重放出来的。
(2)80—250Hz(低音)的频率段,包含着语音中各声部的基础音,对这段频率的调整可改变音乐的平衡状态,使其趋向丰满或单薄,过多地提升会引发“隆隆”声(低频嗡声RUMBLE)。
为了加强一些声功率较弱的乐器演奏的丰满度,在人声的处理过程中,通常男低音的频率可以下到100Hz以下,但在切除100Hz以下的频率时,可消除低频噪音,使音色更纯净。
100-160Hz?的频率多时,人声会低沉,沉闷。
(3)250HZ—2KHZ(中音)的频率段,包含着大多数声部的低次谐波,250-500Hz?影响音色的力度和结实度。
330HZ给人声的坚实感,使低音柔和丰满。
但提升过多,会产生“嗡嗡”的浴室效应。
500—800多会使音色生硬。
如果在800Hz—2KHz范围内加上个很宽的提升峰值,可以使声音更突出。
中心频率增益一般不宜起过8dB,在500Hz过多提升时,会产生纸盆声器音质,在使用时也多用于衰减状态,在1—2KHz过多提升时,会产生类似铁皮声的音色,电话机的音色。
均衡器的调整方法
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均衡器的调整方法1.均衡器的调整方法:超低音:20Hz-40Hz,适当时声音强而有力。
能控制雷声、低音鼓、管风琴和贝司的声音。
过度提升会使音乐变得混浊不清。
低音:40Hz-150Hz,是声音的基础部份,其能量占整个音频能量的70%是表现音乐风格的重要成份。
适当时,低音张弛得宜,声音丰满柔和,不足时声音单薄,150Hz,过度提升时会使声音发闷,明亮度下降,鼻音增强。
中低音:150Hz-500Hz,是声音的结构部分,人声位于这个位置,不足时,演唱声会被音乐淹没,声音软而无力,适当提升时会感到浑厚有力,提高声音的力度和响度。
提升过度时会使低音变得生硬,300Hz处过度提升3-6dB,如再加上混响,则会严重影响声音的清晰度。
中音:500Hz-2KHz,包含大多数乐器的低次谐波和泛音,是小军鼓和打击乐器的特征音。
适当时声音透彻明亮,不足时声音朦胧。
过度提升时会产生类似电话的声音。
中高音:2KHz-5KHz,是弦乐的特征音(拉弦乐的弓与弦的摩搡声,弹拔乐的手指触弦的声音某)。
不足时声音的穿透力下降,过强时会掩蔽语言音节的识别。
高音:7KHz-8KHz,是影响声音层次感的频率。
过度提升会使短笛、长笛声音突岀,语言的齿音加重和音色发毛。
极高音:8KHz-10KHz合适时,三角铁和立叉的金属感通透率高,沙钟的节奏清晰可辨。
过度提升会使声音不自然,易烧毁高频单元。
2. 平衡悦耳的声音应是:150Hz以下(低音)应是丰满、柔和而富有弹性;150Hz-50Hz (中低音)应是浑厚有力百不混浊;500Hz-5KHz (中高音)应是明亮透彻而不生硬;5KHz以上(高音)应是纤细,园顺而不尖锐刺耳。
整个频响特性平直时:声音自然丰满而有弹性,层次清晰园顺悦耳。
频响多峰谷时:声音粗糙混浊,高音刺耳发毛,无层次感扩声易发生反馈啸叫。
3 .频率的音感特征:30〜60Hz沉闷如没有相当大的响度,人耳很难感觉。
60〜100Hz沉重80Hz附近能产生极强的“重感”效果,响度很高也不会给人舒服的感觉, 可给人以强烈的刺激作用。
双段均衡器设置方法
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英文名称Equalizer相关简介均衡器是一种可以分别调节各种频率成分电信号放大量的电子设备,通过对各种不同频率的电信号的调节来补偿扬声器和声场的缺陷,补偿和修饰各种声源及其它特殊作用,一般调音台上的均衡器仅能对高频、中频、低频三段频率电信号分别进行调节。
在通信系统中,在系带系统中插入均衡器能够减小码间干扰的影响。
调整方法超低音20Hz-40Hz,适当时声音强而有力。
能控制雷声、低音鼓、管风琴和贝司的声音。
过度提升会使音乐变得混浊不清。
低音40Hz-150Hz,是声音的基础部份,其能量占整个音频能量的70%,是表现音乐风格的重要成份。
适当时,低音张弛得宜,声音丰满柔和,不足时声音单薄,150Hz,过度提升时会使声音发闷,明亮度下降,鼻音增强。
中低音150Hz-500Hz,是声音的结构部分,人声位于这个位置,不足时,演唱声会被音乐淹没,声音软而无力,适当提升时会感到浑厚有力,提高声音的力度和响度。
提升过度时会使低音变得生硬,300Hz处过度提升3-6dB,如再加上混响,则会严重影响声音的清晰度。
中音500Hz-2KHz,包含大多数乐器的低次谐波和泛音,是小军鼓和打击乐器的特征音。
适当时声音透彻明亮,不足时声音朦胧。
过度提升时会产生类似电话的声音。
中高音2KHz-5KHz,是弦乐的特征音(拉弦乐的弓与弦的摩搡声,弹拔乐的手指触弦的声音某)。
不足时声音的穿透力下降,过强时会掩蔽语言音节的识别。
高音7KHz-8KHz,是影响声音层次感的频率。
过度提升会使短笛、长笛声音突出,语言的齿音加重和音色发毛。
极高音8KHz-10KHz,合适时,三角铁和立*的金属感通透率高,沙钟的节奏清晰可辨。
过度提升会使声音不自然,易烧毁高频单元。
平衡悦耳的声音应是150Hz以下(低音)应是丰满、柔和而富有弹性;150Hz-500Hz(中低音)应是浑厚有力百不混浊;500Hz-5KHz(中高音)应是明亮透彻而不生硬;5KHz以上(高音)应是纤细,园顺而不尖锐刺耳。
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31段均衡器调整啸叫点(实用
在我们演出,会议以及KTV等扩声当中,都会遇到声的反馈(以后简称啸叫)。
也是我们调音员最为头疼的问题。
所以我谈一下用31段均衡器抑制啸叫的调试方法。
( E6 \4 Z8 d# F
直接进入;(以下谈到的调整属于新手入门级方法)
1,MIC及音箱的位置尽量合理。
(不做详谈,论坛内有很多文章以作详细交代)MIC的输入电平及输出电平调整。
MIC最好电平在-6—-3db,以便有足够的上升空间。
音乐电平最好控制在0db(这个也不做详谈了,论坛内有很多文章以作详细交代)。
,调整31段均衡器,以下分⑥步
①首先把MIC输入电平调整到0db,然后把该路推子拉到底。
;
②将MIC放到音箱前3、4米左右处,MIC指向音箱
③把推子慢慢往上推直到听见啸叫后(记住这个啸叫点),迅速往下拉(拉到临界状态:也就是似叫非叫的状态)
④谈到重点了,也就是调整均衡器。
新手入门级调音师普遍遇到有啸叫时,不知道这个啸叫点是哪个频点。
那么好,我们就要逆向思维。
比如:步骤“③”时这个啸叫点,以自己个人主观判断大概是低中高哪个频率段。
如果这个啸叫点是低频段20Hz—500Hz范围内,然后31Hz,40Hz,50Hz,63Hz.。
500Hz。
依次往上推3个db,直到听到与步骤“③”时这个啸叫点一样的点时。
然后将该点往下拉3个db,均衡器调整完第一个点时,将MIC的推子在临界点的位置继续往上推,直到听见下一个啸叫点。
(如果还是步骤“③”时这个啸叫点在叫,那么有两种可能:一是拉错点了,二是这个点还需要往下拉)!主音箱以3,4个点左右为宜,返送6,7个点为宜。
均衡器调整完后将点与点圆滑过渡一下。
4,MIC调整完啸叫频点后,将输入电平和推子各下拉3个db,以保证大动态时稳定。