help with audio effects and espnow receive

[nipper01792]

hi everyone I wonder if someone can help me , I want to apply an audio effect on the incoming decoded signal coming from espnow . I cannot seem to get this to work .
my constructor at the moment is
ESPNowStream now;
AudioKitStream kit; // Access I2S as stream

VolumeStream volume(kit);

AudioEffects<GeneratorFromStream<effect_t>> effects(volume,1,1.0); // apply effects on kit
GeneratedSoundStream<int16_t> fx(effects);

EncodedAudioStream decoder(&fx, new SBCDecoder(1256)); // decode and write to I2S - ESP Now is limited to 256 bytes
StreamCopy copier(decoder,now);

I have tried multiple configurations of this but following the logic this should work,
it does compile but I get
[E] AudioStreams.h : 86 - AudioStreamX: unsupported operation!
in the serial . please help

[nipper01792]

I think I've confused myself as I've tried to fix this so many times, I'm lost

[nipper01792]

ok so lets start again .
ive started with this
ESPNowStream now;
AudioKitStream kit; // Access I2S as stream
VolumeStream volume(kit);
EncodedAudioStream decoder(&volume, new SBCDecoder(1256));
StreamCopy copier(decoder,now);

where should I put the effects in the chain.

[pschatzmann]

I don't think that currently there is a clean way to implement this. Maybe it might work if you create two separate chains that are connected via a QueueStream. It will be output of the decoder and input for the effects.

I will investigate if I can extend the framework somehow to support this in a better way

[nipper01792]

ok now I understand. I wondered why I got so confused, I know my original chain was wrong but it was the only way I could compile. thank you for you help

[nipper01792]

also I have tried this on the espnow send side, it works
but I couldn't fix the stutter hence why I was trying to do this on the receive side

[pschatzmann]

I am providing now a proper Stream implementation for the effects with https://pschatzmann.github.io/arduino-audio-tools/html/classaudio__tools_1_1_audio_effect_stream_t.html which should be easier to use.

It can be used both, on the input and output side. So this should work in your case as well.

I also updated the documentation.

[nipper01792]

thank you so much, you've gone above and beyond for me , you are a superstar. thank you . I will try this asap .

[nipper01792]

mmm doesn't seem to work with espnow send or receive.

here's the send chain

ESPNowStream now;
AudioKitStream kit;
AudioEffectStream effects(kit);
EncodedAudioStream encoder(&now, new SBCEncoder());
StreamCopy copier(encoder,effects);

[nipper01792]

it kills the input/output completely so no audio data is send via espnow

[pschatzmann]

Are you sure that you called begin on AudioEffectStream ?

[nipper01792]

yes the sketch works perfectly if take out the effects from the chain

[nipper01792]

#include "AudioTools.h"
#include "AudioLibs/Communication.h"
#include "AudioCodecs/CodecSBC.h"
#include "AudioLibs/AudioKit.h"
//uint16_t sample_rate = 44100;
//uint8_t channels = 1; // The stream will have 2 channels

#define AI_THINKER_ES8388_VOLUME_HACK

const int sample_rate = 44100;
const int channels = 1;
const int bits_per_sample = 16;

// Effects control input
float volumeControl = 0;//0-1

// Effects
Boost boost(volumeControl);

ESPNowStream now;
AudioKitStream kit; // Access I2S as stream
AudioEffectStream effects(kit);

EncodedAudioStream encoder(&now, new SBCEncoder()); // encode and write to ESP-now
StreamCopy copier(encoder,kit); // copies sound into i2s
const char *peers[] = {"A8:48:FA:0B:93:01"};
void updateValues(){
// update values in controls
boost.setVolume(volumeControl);
boost.setActive(volumeControl>0);

}
void setup() {
Serial.begin(115200);
AudioLogger::instance().begin(Serial, AudioLogger::Warning);

// setup effects
effects.addEffect(boost);

updateValues();

auto cfg = now.defaultConfig();
cfg.mac_address = "A8:48:FA:0B:93:02";
now.begin(cfg);
now.addPeers(peers);

auto cfg1 = kit.defaultConfig(RX_MODE);
cfg1.i2s_format = I2S_LSB_FORMAT;
cfg1.bits_per_sample = 16;
cfg1.channels = channels;
//cfg1.buffer_count = 2;
//cfg1.buffer_size =256;
cfg1.sample_rate = 44100;
cfg1.input_device = AUDIO_HAL_ADC_INPUT_LINE2; // microphone
kit.begin(cfg1);
kit.setVolume(1.0);

// start encoder
encoder.begin(cfg1);

Serial.println("Sender started...");
}

void loop() {
copier.copy();
}

its the same settings at the receiving end

[pschatzmann]

You do not call begin on AudioEffectStream !

[nipper01792]

how the ...... I'm so far down the rabbit hole I didn't even realise id deleted that... so sorry to waste your time, yes I can confirm that it it works great . thank you so much . ill send some coffee