Low end ESP32-C3 tradeoffs.#696
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dragonx wants to merge 1 commit intoshorepine:mainfrom
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The single core esp32-c3 works with AMY, but struggles. It can play single oscillator voices, but more complex sounds tend to max out the MCU. This change hard-codes rendering in mono (AMY_NCHANS=1) for the esp32-c3, doubling the processor headeroom. It also allows for setting an arbitrary AMY_SAMPLE_RATE through build flags. Using a 22khz sample rate again doubles the processor headroom, allowing for 2 voices on somewhat more complex synths. This has obvious quality downsides, so not hardcoding it in.
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The single core esp32-c3 works with AMY, but struggles. It can play single oscillator voices, but more complex sounds tend to max out the MCU.
This change hard-codes rendering in mono (AMY_NCHANS=1) for the esp32-c3, doubling the processor headeroom. It also allows for setting an arbitrary AMY_SAMPLE_RATE through build flags. Using a 22khz sample rate again doubles the processor headroom, allowing for 2 voices on somewhat more complex synths. This has obvious quality downsides, so not hardcoding it in.