Because FREQOUT is using PWM with the ability to output two tones at the same time, so filtering is required to produce a, relatively clean, sinewave-looking tone.
even at 64mhz, FREQUOUT provides very low volume, distorted audio, while SOUND, even on 4Mhz 628A chip, produces loud and clear sound.
This is not chip or hardware...
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Re: Why SOUND statement produces loud and clear sound, but FREQOUT - does not?
Because FREQOUT is using PWM with the ability to output two tones at the same time, so filtering is required to produce a, relatively clean, sinewave-looking tone.
Ioannis - 1st May 2026, 18:06On the otjher hand, SOUND...