[Speex-dev] PWM vs. DAC output

[David Wyskiel - Wyskiel Tech]

I am using ST micro's STM32F103 chip with their AN2812 development code.  It uses a PWM output, resulting in low-quality sound.  Can I just use a scaled version of the PWM to drive a DAC? (i.e. is the output linear, or is there shaping to make the PWM output work?)

Any feedback, links or pointers would be greatly appreciated.

David.
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