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Use a sound sensor to catch a frequency that a saw motor makes, to shut it off?

musclemania05
Prodigy 40 points
Other Parts Discussed in Thread: TLV320ADC3101

Hello all, I'm needing help with finding a sound sensor of some type or directional microphone that will help me detect a specific sound that a saw motor gives off when it's about to get choked up? Also in the same location there are over 50 motors running at the same time this saw is, so it's very loud in the area. I'm needing a device that can handle all this noise and still be able to detect the saw noise to shut down the motor before it messes up?

  • 0
    TI__Guru* 84915 points
    Hi!

    In this case, I think that you would require of an entire system with a good audio signal processing. Your system should be capable to record the audio signal and then process it through a DSP device.

    For the audio recording, probably you would need and audio ADC such the TLV320ADC3101. It supports analog and digital microphone. In addition, it has some low power processing blocks that may help you to reduce some noise.

    This device will be used to capture the sounds and then you would need a device with enough capabilities to support the TLV320ADC3101 output (I2S output) and then process the signal to distinguish the motors sounds. As far as I know, we don't support DSP devices with these capabilities. However, for more information you may start a new E2E thread asking for the DSPs or C667x devices. Our DSP team will provide more details for your application.

    Please let me know if you have additional questions or comments.

    Best regards,
    Luis Fernando Rodríguez S.