Update README.md

README.md

@@ -1,6 +1,15 @@
 # me.fier.aspew
 Audio I/O for real-time applications, like VoIP.
 
+## Prerequisites
+### Python 3.4 or newer:
+- **Windows:** [https://www.python.org/downloads/](https://www.python.org/downloads/)
+- **Debian:** `apt install python3`
+
+### PyAudio:
+- **Windows:** `py -m pip install PyAudio`
+- **Debian:** `apt install python3-pyaudio`
+
 ## Tools
 - `aspew-in.py` takes a microphone as an input, and outputs it to pipe.
 - `aspew-out.py` takes input from a pipe, and outputs it to a speaker.
@@ -8,19 +17,19 @@ Audio I/O for real-time applications, like VoIP.
 ## Arguments
 Arguments are pairs of key=value.
 
-### in & out
+### in & out:
 - `device`: The device, a number (Default: Your default audio device.)
 - `format`: The encoding of your audio, choices: [https://people.csail.mit.edu/hubert/pyaudio/docs/#pasampleformat](https://people.csail.mit.edu/hubert/pyaudio/docs/#pasampleformat) (Default: `paUInt8`)
 - `channels`: How many channels the audio has (Default: `1`)
 - `bitrate`: How high the refresh rate of the audio is in Hz (Default: `8000`)
 - `buffersize`: The buffer-size, in seconds. Higher buffer-sizes reduce CPU load and risk of stutter, but raise delay (Default: `0.05`)
 
-### out-only
+### out-only:
 - `store`: How much audio to store in the back-buffer at maximum before cutting it off, in seconds. Raise this if you get inconsistent playback (Default: 0.3s)
 
 ## Examples
-`./aspew-in.py | ./aspew-out.py`  
+- `./aspew-in.py | ./aspew-out.py`  
 Listen to your default microphone at default settings.
 
-`./aspew-in.py format=paInt16 bitrate=48000 channels=2 | ./aspew-out.py format=paInt16 bitrate=48000 channels=2`  
+- `./aspew-in.py format=paInt16 bitrate=48000 channels=2 | ./aspew-out.py format=paInt16 bitrate=48000 channels=2`  
 Listen to your default microphone at 16-bit, 48000Hz, stereo.