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setup/README.md

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+# Which audio setup do I use?
+
+First you need to determine the kind of audio setup you are using. This will lead you to the appropriate instructions to prepare your live stream.
+
+I identified three kinds of setup:
+- [My performance is purely acoustic and/or I just need one mic to capture it](acoustic.md)

setup/acoustic.md

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+#My performance is purely acoustic and/or I just need one mic to capture it
+
+Using your **computer with [OBS](https://obsproject.com/download)**, a free and open-source software available for Windows macOS and Linux. This is the way to go you you have a microphone that requires to be connected to your computer. It can be the built-in microphone of your webcam, an external microphone you plug into the mic in, or a USB microphone, or even an XLR microphone connected to your external sound card.
+
+-   If you use the **built-in mic of your computer** or your **webcam**, the
+    **build-in mic input** of your computer or an **USB microphone**, refer
+    to [Case 1: OBS + Mic/Aux source]()
+-   If you have to **plug your microphone into your external audio interface**:
+
+    -   **macOS user**: refer to [Case 1: OBS + Mic/Aux source]()
+
+    -   **Windows user**:
+
+        -   External sound card with **MME/DirectX drivers**: [Case 2:
+            OBS + Desktop Audio source]
+        -   External sound card with **ASIO drivers**: [Case 4: OBS +
+            OBS-ASIO]()