We have seen here on the blog a very interesting audio compressor circuit, the audio compression is the process that adjusts the level of an audio signal, reducing the volume of loud sounds or amplifying low sounds by narrowing or dynamic range compression an audio signal.
The audio compression is used for sound recording, playback, radio and amplifiers for musical instruments, among other utilities. This circuit presented here is a single audio compressor that uses only passive components, or any semiconductor such as transistor, diode or integrated circuit.
This compressor dynamic audio with passive components reduces the high signal to a lower signal, but more constant. If you look at this circuit will realize that has no power supply because it only reduces the input signal.
The basic operation is simple in its exit from the compressor will have a constant audio signal of approximately 70mV, so when the input voltage is between 100mV and 10Volts. The reduction control is made by the variable resistor P1 which may be a potentiometer or trimpot.
The diodes of this circuit should be germanium, because this type of diode has limits below the forward bias silicon diodes. Despite being simple this compressor circuit should work well, the drawback is its great attenuation, which makes it unfeasible for most audio applications.
The audio compression is used for sound recording, playback, radio and amplifiers for musical instruments, among other utilities. This circuit presented here is a single audio compressor that uses only passive components, or any semiconductor such as transistor, diode or integrated circuit.
Audio Compressor circuit
This compressor dynamic audio with passive components reduces the high signal to a lower signal, but more constant. If you look at this circuit will realize that has no power supply because it only reduces the input signal.
The basic operation is simple in its exit from the compressor will have a constant audio signal of approximately 70mV, so when the input voltage is between 100mV and 10Volts. The reduction control is made by the variable resistor P1 which may be a potentiometer or trimpot.
The diodes of this circuit should be germanium, because this type of diode has limits below the forward bias silicon diodes. Despite being simple this compressor circuit should work well, the drawback is its great attenuation, which makes it unfeasible for most audio applications.
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