Search results

  1. fabrizio carraro

    Teensy 4 - 4.1 Good quality PWM audio

    I just tried MQS. The audio quality is much better than single pin PWM. The signal looks like PWM but at a carrier frequency of about 350 Khz. Playing with the internal registers it may be possible to lower it below 150KHz maybe. However rebuilding the laser driver for a lower impedance it...
  2. fabrizio carraro

    Teensy 4 - 4.1 Good quality PWM audio

    I need to transmit medium/good quality audio (taken from the analog audio input of an audio board with a sgtl5000 chip) far away using a laser beam. In order to do that I send a PWM signal to the laser. The light beam is received by a photosensor far away. The photosensor exactly follows the...
Back
Top