Electronics > Beginners
what cheap digital oscilloscope for analog audio?
gcewing:
Another good inexpensive piece of audio test gear is a crystal earphone.
radiolistener:
it depends on your needs. If you're needs to analyze signals with high dynamic range, low distortion and low noise, you're needs oscilloscope with high resolution ADC (at least 14-16 bits).
For example, you can use something like Picoscope 4262: https://www.picotech.com/oscilloscope/4262/picoscope-4262-overview
For beginning, you can use just some sound card to digitize signal and analyze it with software. With 24-bits sound card you can get very good dynamic range, but the bandwidth will be limited by half of the sample rate, usually 96 kHz
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