ericbolo

Run the command:

cat /etc/os-release

If you don't need analog audio then prevent the module from loading and set the USB headset as the default device.

Disable analog audio. Open /boot/config.txt and comment out dtparam=audio=on.

Set the USB audio device to the default device. Open /lib/modprobe.d/aliases.conf and comment out the line options snd-usb-audio index=-2

Reboot

Introduction

This walks you through setting up your Raspberry PI 3 (Raspbian Jessie) as a bluetooth audio receiver.

Credits https://www.raspberrypi.org/forums/viewtopic.php?t=68779. Parts of this tutorial did not work for me, so I'm noting my fixes here. Also, I added instructions for setting up a custom USB sound card for better quality.

Set up USB sound card on Raspberry PI

Introduction

This walks you through installing JACK, connecting a USB sound card, and copying the audio on the input port onto the output port. The result: you will hear what you say played back immediately from the headphones.

Installation

sudo pip install setuptools
sudo apt-get install python-dev

sudo apt-get install libffi-dev

Credits

https://mikebeach.org/2011/07/26/how-to-monitor-your-microphone-through-headphones-in-ubuntu/

Introduction

This walks you through routing the microphone's audio to your headphones. I've tested it on a Raspberry PI (Raspbian Jessie).

Steps

start PulseAudio daemon

Introduction

This shows you how to see the live volume of sound devices on Linux. I've tested this on Raspbian Jessie.

Steps

Make sure PulseAudio is running

pulseaudio -D

Introduction

In the context of a speech-to-text/IoT project, I needed to capture the audio output of one device and feed it to the mic of my raspberry PI. This gist is stricly concerned with the hardware aspect. Since I wanted to capture speech, not music, I used only one channel of the stereo audio

Checklist

One 1 microfaraday capacitor
One 1 kilo ohm potentiometer

	Virtual environments allow you to install dependencies without conflicting with your current installs.

	## Installing
	[sudo] pip install virtualenv

	sudo /usr/bin/easy_install virtualenv


	"" Running

	If a module was installed with sudo pip install, the user may not have permissions to access the module,
	resulting in 'No module called...' errors.

	Quick get around: run py script with sudo