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Bela_setAudioInputGain

bela_sys

Function Bela_setAudioInputGain 

Source 
pub unsafe extern "C" fn Bela_setAudioInputGain(
    channel: c_int,
    decibels: f32,
) -> c_int
Expand description

\brief Set the gain of the audio input preamplifier.

This function sets the level of the Programmable Gain Amplifier(PGA), which amplifies the signal before the ADC.

\b Important: do not call this function from within render(), as it does not make any guarantees on real-time performance.

\param channel The channel to set. Use a negative value to set all channels. \param decibels Level of the PGA Valid levels range from 0 (lowest) to 59.5 (highest) in steps of 0.5dB. Levels between increments of 0.5 will be rounded. channel 1 is right

\return 0 on success, or nonzero if an error occurred.