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enable bandpass filter for analog input

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Analog input seems to sometime have a very strong negative DC offset, when the signal is not centered at 1.8V. The bandpass filter should help to reenter such "off limits" signals.
See discussions in issue #10 .
This commit is contained in:
Frank
2022-12-19 11:15:37 +01:00
committed by GitHub
parent 18d649a3a5
commit 42cc302159
1 changed files with 1 additions and 1 deletions
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2
usermods/audioreactive/audio_reactive.h
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@@ -1284,7 +1284,7 @@ class AudioReactive : public Usermod {
case 0: case 0:
default: default:
DEBUGSR_PRINTLN(F("AR: Analog Microphone (left channel only).")); DEBUGSR_PRINTLN(F("AR: Analog Microphone (left channel only)."));
//useBandPassFilter = true; useBandPassFilter = true;
audioSource = new I2SAdcSource(SAMPLE_RATE, BLOCK_SIZE); audioSource = new I2SAdcSource(SAMPLE_RATE, BLOCK_SIZE);
delay(100); delay(100);
if (audioSource) audioSource->initialize(audioPin); if (audioSource) audioSource->initialize(audioPin);