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Rugby Union
The Rugby Championship 2023
[2014 TRC] South Africa v New Zealand in Johannesburg (04/10/2014)
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<blockquote data-quote="smartcooky" data-source="post: 676849" data-attributes="member: 20605"><p>Have you ever been in the TMO Box at a major match? Well, I have several times so I know exactly what it is like.</p><p></p><p> While you can hear the crowd noise very faintly, it just sounds like faint, background white noise, you cannot tell anything about what mood they are in, or if they are jeering or cheering. And that is if you are NOT wearing the headset. When you ARE wearing the headset, all you can hear is the referee's "hot-mic" (the referee's mic is live all the time). You can hear him huffing and puffing and talking to the players. The referee's microphone is a dynamic noise-cancelling type that is typically used on on pilot's headsets. There is almost no crowd noise coming though that either.</p><p></p><p>PS: If you don't believe that it is possible to have a microphone pick up the referee voice and not the crowd noise, here is a brief, non-technical explanation of how that works. </p><p>The system uses two microphones and active electronic circuitry to reduce the noise. The first microphone is close to referee's mouth and receives both his voice and the crowd noise while the second microphone receives only crowd noise. The crowd noise audio feed is put through a phase inverter so that when it is combined with the referee's audio feed, the crowd noise is cancelled out. Effectively, the noise from the two audio feeds are subtracted from each other, leaving only the referee's voice.</p></blockquote><p></p>
[QUOTE="smartcooky, post: 676849, member: 20605"] Have you ever been in the TMO Box at a major match? Well, I have several times so I know exactly what it is like. While you can hear the crowd noise very faintly, it just sounds like faint, background white noise, you cannot tell anything about what mood they are in, or if they are jeering or cheering. And that is if you are NOT wearing the headset. When you ARE wearing the headset, all you can hear is the referee's "hot-mic" (the referee's mic is live all the time). You can hear him huffing and puffing and talking to the players. The referee's microphone is a dynamic noise-cancelling type that is typically used on on pilot's headsets. There is almost no crowd noise coming though that either. PS: If you don't believe that it is possible to have a microphone pick up the referee voice and not the crowd noise, here is a brief, non-technical explanation of how that works. The system uses two microphones and active electronic circuitry to reduce the noise. The first microphone is close to referee's mouth and receives both his voice and the crowd noise while the second microphone receives only crowd noise. The crowd noise audio feed is put through a phase inverter so that when it is combined with the referee's audio feed, the crowd noise is cancelled out. Effectively, the noise from the two audio feeds are subtracted from each other, leaving only the referee's voice. [/QUOTE]
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Rugby Union
The Rugby Championship 2023
[2014 TRC] South Africa v New Zealand in Johannesburg (04/10/2014)
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