Differences

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--- infrastructure:audio-setup [2025/12/28 13:20] – diamond
+++ infrastructure:audio-setup [2026/04/23 06:28] (current) – diamond
@@ Line 3: / Line 3: @@
 ## Quick Start
-- To use the Android TV, switch the AV Receiver on and to `DVD / HDMI 1`.
+- Make sure the AV Receiver is on. It usually is. Make sure its source is set to `CD-R`.
-  - Make sure the HDMI indicator on the AV Receiver is on and blue.
+- To use the Android TV:
-  - Make sure the TV input is set to `HDMI 1`.
+  - Make sure the onn Box is on: if the LED in front of it is red, then it's off. Find its remote and turn it on.
-- To use the media desk, switch the AV Receiver on and to `CD`.
+  - You can also optionally turn on the TV. Make sure it's set to HDMI 1.
-- To use the rally bar, switch the TV to `HDMI 2`. Audio will go through the rally bar directly.
+- To use Bluetooth, see [Connecting to Bluetooth](#connecting_to_bluetooth).
-  - Please change it back to `HDMI 1` after the meeting.
+- To use the media desk:
-- Bluetooth is not available yet.
+  - The mixer on the media desk should already be wired to the audio mixer.
+- To use the rally bar:
+  - Use the in-built speakers. The rally bar is not wired up to the AV system.
+### Connecting to Bluetooth
+We use a "UGREEN-BT505" as the Bluetooth receiver. Its controls are as following:
+- To turn it on, hold the top button. The LED light should come up. You'll also hear it saying "Powered on."
+- To turn it off, hold the top button again.
+- To enter pairing mode, double-tap the top button. **The LED light should be flashing red and blue.** You should be able to find a Bluetooth device with this name after that.
+This Bluetooth receiver can connect up to 2 devices simultaneously. If you're having issues with connecting to it, you might want to make sure that no one is connected to it. If you're unable to connect, try putting it into pairing mode and then reconnecting.
 ## Wiring
@@ Line 19: / Line 31: @@
     nodesep=0.5;
     ranksep=1;
     node [shape=box, style=rounded, fontname="sans", margin=0.2];
@@ Line 27: / Line 39: @@
     rally_bar [label="Logitect Rally Bar"];
     av_receiver [label="A/V Receiver"];
+    sub_amp [label="Subwoofer Amplifier"]
     bluetooth [label="Bluetooth Receiver"];
     media_desk [label="Media Desk"];
+    audio_mixer [label="Audio Mixer"];
+    hdmi_splitter [label="HDMI Audio Splitter"];
     subgraph speakers {
       label = "Speakers";
       front_speaker_l [label="Front Speaker Left"];
       front_speaker_r [label="Front Speaker Right"];
-      small_sub [label="Small Subwoofer"];
+      small_sub [label="Small Subwoofer (*)", style="striped"];
+      jeremy_sub [label="Jeremy's Subwoofer"];
     }
     {
       rank=same;
@@ Line 43: / Line 59: @@
       front_speaker_r;
     }
     { rank=same; tv; av_receiver; }
     pc -> rally_bar [label="HDMI In"];
     rally_bar -> tv [label="HDMI 2"];
-    av_receiver -> tv [label="HDMI 1"];
+    onn_box -> hdmi_splitter [label="HDMI"];
-    onn_box -> av_receiver [label="HDMI 1"];
+    hdmi_splitter -> audio_mixer [label="RCA"];
-    bluetooth -> av_receiver [label="RCA"];
+    hdmi_splitter -> tv [label="HDMI 1"];
-    media_desk -> av_receiver [label="RCA"];
+    audio_mixer -> av_receiver [label="RCA, CD-R"];
-    av_receiver -> small_sub [label="Amplified"];
+    bluetooth -> audio_mixer [label="RCA"];
+    media_desk -> audio_mixer [label="RCA"];
+    av_receiver -> sub_amp [label="RCA, SW"];
+    sub_amp -> jeremy_sub [label="Amplified"];
+    av_receiver -> small_sub [label="Amplified, FL+FR"];
     small_sub -> front_speaker_l [label="Amplified"];
     small_sub -> front_speaker_r [label="Amplified"];
   }
 </graphviz>
 ```
+> **Note:** The small subwoofer is currently unused and only acts as passthrough. They'll stay until we need to move the speakers again.