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2026-08-14 18:02:40
伊普斯维奇城100万英镑重建球场PA系统:为什么只更换扬声器远远不够
伊普斯维奇城计划投资约100万英镑,为波特曼路球场重建PA扩声系统,替换老化基础设施,以改善球场沟通、比赛日氛围,并为未来看台改造提供支持。

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伊普斯维奇城100万英镑重建球场PA系统:为什么只更换扬声器远远不够

当首发阵容在波特曼路球场的看台上响起时,哪怕清晰度只是稍微下降,播报内容也可能很快被观众的欢呼声淹没。对于一座比赛日要接待数万名球迷的体育场来说,公共广播系统很容易被忽视,但它会直接影响整体观赛体验。如今,伊普斯维奇城采取了一个相当果断的做法:俱乐部不是再多装几只扬声器,而是计划投入约100万英镑,对球场PA系统进行整体重建。这笔投入背后涉及的体育场音频工程,远不只是把播报声音调得更大。

波特曼路球场计划进行的工程并不是一次常规设备更换。伊普斯维奇城希望在未来某个赛季开始前更新更广泛的扩声基础设施,涉及从布线、信号分配到功放和系统控制等多个环节。俱乐部主席兼首席执行官马克·阿什顿在俱乐部TownTV平台上解释说,此前为改善系统所做的尝试,包括增加新扬声器以及调整现有设备,都没有解决根本问题。他表示,布线本身已经成为一个明显的难题。

伊普斯维奇城波特曼路球场外观及看台,俱乐部计划投入100万英镑升级PA系统
波特曼路球场的PA升级被视为一项长期体育场基础设施工程,而不是简单更换扬声器。

为什么局部修补最终会失效

体育场PA系统服役时间越长,单独进行局部维修的效果往往越有限。扬声器是系统中最直观的部分,但音频从麦克风传到最终听音位置,还依赖布线、信号分配、功放、控制设备,以及不同看台和球场分区之间的连接。只要这条链路中的任何一处基础设施老化或不可靠,仅仅更换末端设备带来的改善就可能受到限制。

波特曼路球场似乎正是一个典型例子。俱乐部已经尝试过增加扬声器和进行针对性调整,但底层布线仍然限制着系统性能。继续在老化架构上叠加新设备,还可能形成更复杂的新旧组件混用状态,使维护变得更难而不是更容易。这也是一些老体育场反复为PA系统投入资金,却始终无法获得稳定效果的原因之一:真正的问题未必出在看得见的扬声器上。

100万英镑究竟花在哪里?

大型体育场音频系统并不是简单地堆叠一批大功率扬声器。不同看台、环廊和比赛日使用区域的声学条件差异很大。设备安装位置、线缆路由、信号分配和系统调试都必须结合体育场本身进行规划。目标并不只是提高音量,而是要让更大范围内的播报保持稳定、清晰可懂,同时降低老化基础设施带来的运行风险。

因此,一套完整体育场PA系统的预算远不止扬声器本身。功放、数字信号处理器、控制系统、布线、线缆保护与敷设设施、安装结构以及现场调音,都可能属于项目范围。扬声器数量更多并不一定意味着声音更好。如果分区设计和延时校准不合理,来自不同扬声器位置的声音会在不同时间到达听众耳边,形成类似回声的效果,反而让语音更难听清。从这个角度看,这100万英镑不仅是在购买硬件,也是在为声学规划、基础设施更新和整套系统调试买单。

体育场声学比想象中更复杂

人们很容易把体育场扩声想象成室内音响系统,但两种环境面对的挑战完全不同。足球场通常是开放或半开放空间,没有连续的墙面和天花板来形成可预测的反射。阶梯式座位、顶棚、隔挡以及不同看台的几何结构都会影响声音传播。球迷欢呼、歌唱或击鼓时,背景噪声也会发生剧烈变化,而PA系统自身又会在这个环境中增加一层声音。

因此,设计人员既要保证远端座位获得足够的声覆盖,又不能让近端区域的音量高到令人不适。此时,语音可懂度就成为关键指标。在受到人群噪声、混响和多个扬声器覆盖重叠影响的空间里,单纯提高音量并不能保证球迷听懂播报。现代体育场PA设计需要综合考虑覆盖范围、声压级以及语音传输指数(STI)等指标,而不能只依赖输出电平。

分布在足球场看台区域的扬声器,为球迷提供清晰广播
体育场PA系统既帮助塑造比赛日氛围,也要向不同座位区域清晰传递信息。

一套系统同时承担氛围与安全

比赛日体验早在开球之前就已经开始。背景音乐、主持人播报、球队介绍、比分更新和活动信息都会共同塑造球场内的氛围。如果声覆盖不均匀,或者语音难以听清,不同看台的球迷对同一场赛事可能会有完全不同的体验。更稳定一致的扩声系统,可以让俱乐部更好地控制信息和娱乐内容在整个体育场中的传递方式。

但体育场PA系统还有更严肃的职责:传递安全信息。当数万人同时入场、在场内流动或离场时,广播必须与人群噪声以及建筑本身复杂的空间条件竞争。在突发事件中,清晰的分区广播和应急信息可能成为人群管理与疏散的重要组成部分。因此,PA系统并不只是营造气氛的工具,它也是场馆整体运营与安全基础设施的一部分。

从模拟布线转向网络化音频

几十年来,体育场PA系统通常围绕模拟信号链路建设,大量铜缆负责把音频从控制室传送到场馆各处的功放和扬声器回路。这种方式长期以来一直能够有效工作,但随着体育场扩建、系统日益复杂,长距离线缆、信号衰减、干扰和维护问题也越来越难管理。波特曼路球场发现的布线问题,正体现了老旧基础设施接近使用寿命极限时可能出现的典型挑战。

新建场馆和大型翻新项目越来越多地采用网络化音频架构。音频不再必须通过一条条独立的模拟连接传输,而可以作为数据在基于IP的网络中传送。优势并不仅仅是减少线缆。网络化系统还能够提供更灵活的分区、远程监控、更方便的重新配置以及更完善的故障监测。对于已经考虑未来调整看台结构的体育场来说,这种灵活性可以让后续变化更容易实施,而不必每次都大规模重建音频基础设施。

为未来球场改造预留空间

伊普斯维奇城计划中特别值得注意的一点,是工程预计在夏季进行,同时还要考虑未来可能对科博尔德看台进行的改造。阿什顿此前曾把扩建该看台描述为中长期目标,俱乐部也已经原则上达成协议,计划收购体育场后方的土地。因此,新PA系统并不是按照“所有部件都会永久固定在首次安装位置”的假设来设计。

按照俱乐部描述的方案,为科博尔德看台服务的设备在未来改造时有可能被拆除并重新集成。对于已经有后续建设计划的体育场来说,这种模块化思路尤其重要。如果新安装的PA系统只能适用于现有建筑布局,那么未来改造就可能迫使俱乐部再次更换昂贵设备。从一开始就考虑设备迁移和重新集成,可以让当前投资在体育场不断演变的过程中继续发挥价值。

波特曼路球场现有看台及未来改造时PA系统迁移规划示意
新的音频基础设施既要满足当前比赛日需求,也需要适应未来体育场布局变化。

重大升级往往从幕后开始

当球迷想到体育场改造时,注意力自然更容易集中在新看台、外立面建筑或贵宾接待设施上。然而,很多对比赛日运营影响最大的系统其实几乎看不见。音频、排水、照明和网络基础设施都会影响一座现代体育场能否稳定可靠地运行。

伊普斯维奇城的PA项目正反映了这一现实。波特曼路球场此前进行的针对性改进没有达到预期效果,因此俱乐部转而推动整套系统更新。约100万英镑的投资并不小,但这笔资金用于建设预计将在未来多年支撑比赛日运营、球迷沟通以及球场氛围的基础设施。

如果工程按计划在夏季推进,新PA系统将成为波特曼路球场下一阶段基础设施发展的重要组成部分。未来科博尔德看台发生变化时,系统部分设备还能迁移或重新集成,这也意味着该项目不仅是在应对设备老化。它被纳入了体育场更长期的发展规划之中。

对大多数球迷来说,最终结果可能简单得出乎意料:广播更容易听见,也更容易听懂。但对俱乐部而言,这种改善代表的是更大的变化——一套经过重建的通信基础设施,能够支撑未来多个赛季,并随着体育场本身的变化持续适应。在波特曼路球场,下一项重大升级或许正从一种球迷完全看不见的东西开始:声音。

正在规划体育场或大型场馆PA升级?

贝克通信为体育场、交通设施、工业现场以及其他大型或复杂环境提供专业的通信、寻呼和公共广播解决方案。从基于IP的音频分配与寻呼,到系统集成和现场通信,方案可根据覆盖需求、运营流程及未来扩展计划进行配置。

如果现有PA基础设施越来越难以维护,或者正在规划新体育场、场馆扩建或整套音频系统升级,可以联系贝克通信,讨论适合项目需求、具备扩展能力的通信与PA系统架构。

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