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Buzzing sound in speakers

Discussion in 'General Electronics Discussion' started by Karthik rajagopal, May 15, 2019.

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  1. Audioguru


    Sep 24, 2016
    The phone volume is turned down and the amplifier volume is turned up so that another reason why there is lots of interference picked up.
    Instead, turn up the phone volume (but less than clipping distortion (you call it jarring?) then turn down the amplifier volume so that the music does not have clipping distortion and the interference noise is also turned down.
  2. BobK


    Jan 5, 2010
    That was the point I was trying to get at. You don't want a high gain amplifier driven by an earphone jack.

    A related question, if anyone knows this. When you turn down the volume on a phone, is it doing that digitally, i.e. by feeding smaller numbers into the DAC or is there an analog reduction in the output voltage. If it is the former, using it at low volume makes the sound more distorted because you are effectively using a lower resolution DAC.

  3. Karthik rajagopal

    Karthik rajagopal

    May 9, 2016
    Sure .Thanks for telling me about this way of reducing the noise interference .:)
  4. Karthik rajagopal

    Karthik rajagopal

    May 9, 2016
    That was a clear explanation . I will have my phone volume high and amplifier's volume low. Thank you !
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