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AR: added dynamics limiter usermod cfg options

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- On/Off controls the complete feature
- Rise Time and Fall Time are the minimum times (in milliseconds) for "volume" to go from 0% to 80% and back.
- when "On" we also use some filtering to smooth FFTResults[]. Rise and Fall Times do not affect Frequency reactive effects otherwise.
This commit is contained in:
Frank 2022-08-17 13:40:54 +02:00
parent 991fad02d7
commit d92a93f1d5
1 changed files with 30 additions and 14 deletions
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42
usermods/audioreactive/audio_reactive.h
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@ -27,9 +27,6 @@
// #define NO_MIC_LOGGER // exclude MIC_LOGGER from SR_DEBUG
// hackers corner
#if !defined(SOUND_DYNAMICS_LIMITER) && !defined(NO_SOUND_DYNAMICS_LIMITER)
#define SOUND_DYNAMICS_LIMITER // experimental: define to enable a dynamics limiter that avoids "sudden flashes" at onsets. Makes some effects look more "smooth and fluent"
#endif
#ifdef SR_DEBUG
#define DEBUGSR_PRINT(x) Serial.print(x)
@ -64,8 +61,9 @@ static uint8_t soundAgc = 0; // Automagic gain control: 0 - non
static uint8_t audioSyncEnabled = 0; // bit field: bit 0 - send, bit 1 - receive (config value)
// user settable parameters for limitSoundDynamics()
static int attackTime = 80; // int: attack time in milliseconds. Default 0.1sec
static int decayTime = 1400; // int: decay time in milliseconds. Default 1.4sec
static bool limiterOn = true; // bool: enable / disable dynamics limiter
static uint16_t attackTime = 80; // int: attack time in milliseconds. Default 0.08sec
static uint16_t decayTime = 1400; // int: decay time in milliseconds. Default 1.40sec
//
// AGC presets
@ -289,11 +287,10 @@ void FFTcode(void * parameter)
//fftAvg[i] = fftCalc[i]*0.05f + 0.95f*fftAvg[i]; // will need approx 10 cycles (250ms) for converging against fftCalc[i]
// Now, let's dump it all into fftResult. Need to do this, otherwise other routines might grab fftResult values prematurely.
#if !defined(SOUND_DYNAMICS_LIMITER)
fftResult[i] = constrain((int)fftCalc[i], 0, 254);
#else
if(limiterOn == true)
fftResult[i] = constrain((int)fftAvg[i], 0, 254);
#endif
else
fftResult[i] = constrain((int)fftCalc[i], 0, 254);
}
#ifdef WLED_DEBUG
@ -695,11 +692,12 @@ class AudioReactive : public Usermod {
*/
// effects: Gravimeter, Gravcenter, Gravcentric, Noisefire, Plasmoid, Freqpixels, Freqwave, Gravfreq, (2D Swirl, 2D Waverly)
void limitSampleDynamics(void) {
#ifdef SOUND_DYNAMICS_LIMITER
const float bigChange = 196; // just a representative number - a large, expected sample value
static unsigned long last_time = 0;
static float last_volumeSmth = 0.0f;
if(limiterOn == false) return;
long delta_time = millis() - last_time;
delta_time = constrain(delta_time , 1, 1000); // below 1ms -> 1ms; above 1sec -> sily lil hick-up
float deltaSample = volumeSmth - last_volumeSmth;
@ -717,7 +715,6 @@ class AudioReactive : public Usermod {
last_volumeSmth = volumeSmth;
last_time = millis();
#endif
}
@ -1080,10 +1077,10 @@ class AudioReactive : public Usermod {
// peak sample from last 5 seconds
if ((millis() - sampleMaxTimer) > CYCLE_SAMPLEMAX) {
sampleMaxTimer = millis();
maxSample5sec = (0.25 * maxSample5sec) + 0.75 *((soundAgc) ? sampleAgc : sampleAvg); // reset, with some smoothing
maxSample5sec = (0.15 * maxSample5sec) + 0.85 *((soundAgc) ? sampleAgc : sampleAvg); // reset, and start with some smoothing
if (sampleAvg < 1) maxSample5sec = 0; // noise gate
} else {
maxSample5sec = fmaxf(maxSample5sec, (soundAgc) ? sampleAgc : sampleAvg); // follow maximum
if ((sampleAvg >= 1)) maxSample5sec = fmaxf(maxSample5sec, (soundAgc) ? rawSampleAgc : sampleRaw); // follow maximum volume
}
//UDP Microphone Sync - transmit mode
if ((audioSyncEnabled & 0x01) && (millis() - lastTime > 20)) {
@ -1370,6 +1367,11 @@ class AudioReactive : public Usermod {
cfg[F("gain")] = sampleGain;
cfg[F("AGC")] = soundAgc;
JsonObject dynLim = top.createNestedObject("dynamics");
dynLim[F("Limiter")] = limiterOn;
dynLim[F("Rise")] = attackTime;
dynLim[F("Fall")] = decayTime;
JsonObject sync = top.createNestedObject("sync");
sync[F("port")] = audioSyncPort;
sync[F("mode")] = audioSyncEnabled;
@ -1412,6 +1414,10 @@ class AudioReactive : public Usermod {
configComplete &= getJsonValue(top["cfg"][F("gain")], sampleGain);
configComplete &= getJsonValue(top["cfg"][F("AGC")], soundAgc);
configComplete &= getJsonValue(top["dynamics"][F("Limiter")], limiterOn);
configComplete &= getJsonValue(top["dynamics"][F("Rise")], attackTime);
configComplete &= getJsonValue(top["dynamics"][F("Fall")], decayTime);
configComplete &= getJsonValue(top["sync"][F("port")], audioSyncPort);
configComplete &= getJsonValue(top["sync"][F("mode")], audioSyncEnabled);
@ -1433,6 +1439,16 @@ class AudioReactive : public Usermod {
oappend(SET_F("addOption(dd,'Normal',1);"));
oappend(SET_F("addOption(dd,'Vivid',2);"));
oappend(SET_F("addOption(dd,'Lazy',3);"));
oappend(SET_F("dd=addDropdown('AudioReactive','dynamics:Limiter');"));
oappend(SET_F("addOption(dd,'Off',0);"));
oappend(SET_F("addOption(dd,'On',1);"));
oappend(SET_F("addInfo('AudioReactive:dynamics:Limiter',0,' Limiter On ');")); // 0 is field type, 1 is actual field
//oappend(SET_F("addInfo('AudioReactive:dynamics:Rise',0,'min. ');"));
oappend(SET_F("addInfo('AudioReactive:dynamics:Rise',1,' ms <br /><i>(volume reactive FX only)</i>');"));
//oappend(SET_F("addInfo('AudioReactive:dynamics:Fall',0,'min. ');"));
oappend(SET_F("addInfo('AudioReactive:dynamics:Fall',1,' ms <br /><i>(volume reactive FX only)</i>');"));
oappend(SET_F("dd=addDropdown('AudioReactive','sync:mode');"));
oappend(SET_F("addOption(dd,'Off',0);"));
oappend(SET_F("addOption(dd,'Send',1);"));