Electronics and Technical resources from vu3dxr
Microphone compressor using LM1458 The LM1458 is a dual operational amplifier (op-amp) that finds applications in audio amplification and other circuits. Let’s explore how you can create a simple microphone preamplifier with compression using the LM1458. To get greater transmitting performance from your ham radio transceiver, we need to keep the modulation level constant, regardless of …
Dual microphone noise cancellation using LF351 Op Amp Dual microphone noise cancellation (also known as Dual Mic ANC) is a technique used to improve the quality of audio captured by microphones in noisy environments. This circuit dual microphone noise cancelling using LF351 Op Amp uses two mics back to back, each amplified, one inverted, and …
Noise Canceling Condenser Microphone Noise Canceling Electret condenser microphones are a great choice for noise-canceling applications due to their small size, low power consumption, and high sensitivity. They work in conjunction with active noise cancellation circuitry to create a more peaceful listening experience. Electret condenser microphones (ECMs) can be very effective for noise cancellation when …