Constant BATCH_SIZE

pub(crate) const BATCH_SIZE: usize = _; // 8usize

ADC/DAC Samples per batch. The app::process routine is invoked once per batch period and has access to the two (both channels) filled buffers of ADC samples from the previous batch period and to the two to-be-filled buffers of DAC samples that will be emitted in the next batch period.