Pi-ASMR

The Pi-ASMR project transforms a raspberry pi into a Multi-user audio booth.

At the moment, we support n=3 users. We assume that each user can use his/her own headphones in order to listen to different tracks -- independent of what others are listening to. Each user has his/her own 4 buttons to select between 4 different audio tracks residing on the Pi's file-system accordingly.

Hardware requirements

• Raspberry PI 3 following this GPIO numbering scheme
• 3 audio dongles connected to the PI via USB.
• 3 headphones plugged into the audio dongles.
• 12 buttons.
• Follow the variables PERSON_X_GPIO_PINS in buttons.py to wire each person's buttons to the corresponding GPIO pins on the Pi.

Software requirements

• Python 2.7.
• Raspberry PI python library: RPi.
• mpg123 audio player.

Configuration

• The 3 audio dongles are labeled as hw:1,0 to hw:3,0 in ALSA accordingly.
  • See: https://superuser.com/questions/53957/what-do-alsa-devices-like-hw0-0-mean-how-do-i-figure-out-which-to-use/53977#53977
• Adjust the volumes of the devices using alsa-mixer as necessary.
• Create the directory /home/pi/asmr if it does not exist and move all the audio files there.
• Adjust AUDIO_FILENAMES in the python file buttons.py to include the names of your four audio files.

How to run

1. Clone this repository onto your RPi.
2. cd tedxdd-18-asmr
3. python2 buttons.py