https://devzone.nordicsemi.com/f/nordic-q-a/125676/ble-streaming-issues-in-a-conference-hallHi my customers are complaining that they have a bad connection in a large conference hall with many people. Actually the other people in that huge room are not using any BLE devices. What might affect the throughput in a large room full of peopleen-USTelligent Community 13Wed, 19 Nov 2025 14:10:15 GMThttps://devzone.nordicsemi.com/thread/554806?ContentTypeID=1Wed, 19 Nov 2025 14:10:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5d4a55c7-3846-4260-946d-f06efc65ec43Hieu<p>Hi klaus1234,</p> <p>To interfere with BLE, the devices don&#39;t need to be running BLE activities themselves, but merely active in the 2.4GHz band, which is shared with classic Bluetooth and Wi-Fi. <br />With a lot of people in the hall, EM noise interference is expectable.<br />Please also keep in mind&nbsp;that the&nbsp;objects in the hall can also reflect and absorb the signal, causing further interference and signal degradation.&nbsp;The human&nbsp;body itself also&nbsp;absorbs&nbsp;RF signals a lot. Please refer to this article from Shure:&nbsp;<a href="https://service.shure.com/s/article/does-the-human-body-block-or-absorb-rf-energy?language=en_US&amp;region=en-US">https://service.shure.com/s/article/does-the-human-body-block-or-absorb-rf-energy?language=en_US&amp;region=en-US</a>.</p> <p>Given the environment,&nbsp;I&nbsp;recommend first strategize where to place the devices to have a stable connection first.</p> <p>As for throughput,&nbsp;I don&#39;t think it is possible to comment, given the number of varying factors at play.</p> <p>Hieu</p><div style="clear:both;"></div>