Hello everyone,
I'm an audio enthusiast, but I also appreciate convenience (read lazy). Currently, I control my streaming audio through a voice assistant to select songs, adjust the volume, etc., and it works great. In addition to streaming, I also have a turntable and a vinyl collection. While I still need to get up to change records, I enjoy controlling the volume of my turntable through my voice assistant as well. To achieve this, I hacked together a simple device using an Allo R-Attenuator and an ESP32, which has worked well so far. However, I'm now considering upgrading some of my vinyl gear, and the new setup will have a balanced output. This brings me back to my volume control challenge…
Does anyone know of a device I can use in place of the R-Attenuator to control the volume of a balanced (XLR) connection via I²C? I looked online for ready-made relay attenuators with XLR input/outputs, but they all seem to require a potentiometer for volume adjustment.
Thanks in advance!
- Justin
I'm an audio enthusiast, but I also appreciate convenience (read lazy). Currently, I control my streaming audio through a voice assistant to select songs, adjust the volume, etc., and it works great. In addition to streaming, I also have a turntable and a vinyl collection. While I still need to get up to change records, I enjoy controlling the volume of my turntable through my voice assistant as well. To achieve this, I hacked together a simple device using an Allo R-Attenuator and an ESP32, which has worked well so far. However, I'm now considering upgrading some of my vinyl gear, and the new setup will have a balanced output. This brings me back to my volume control challenge…
Does anyone know of a device I can use in place of the R-Attenuator to control the volume of a balanced (XLR) connection via I²C? I looked online for ready-made relay attenuators with XLR input/outputs, but they all seem to require a potentiometer for volume adjustment.
Thanks in advance!
- Justin
Attachments
Use another relay board driven from the current relay board, only the relays not the control circuitry so only identical number of relays. All that would be odd is that your cable, instead of having one XLR connector would have two RCA left and right feeding + and - of the XLR connectors at the volume board.
Just jump the relay coils from one board to the other, messy but cheap. You just duplication the relays and attenuating circuitry in order to be balanced. Like you would using a four ganged pot driven by a single motor.
