Using Audio Tools on custom ESP32 board.

[rbagdazian]

Hello,
I am attempting to use the audio tools on a custom ESP32 board that I designed. This board is very similar to the AI thinker audio devkit board, but uses a PCM5102 DAC for audio output. I have been able to successfully build the ESP-IDF A2DP sink app and it plays audio as desired on my connected speakers. I have an app that I have been using on an AI thinker devkit board which implements a bluetooth speaker with some other functionality added and works fine on that board. When I attempt to use this app on my custom design board, it generates the output shown below (logger is in debug mode, running under platformio).

I'm not sure what the problem is, since the board seems to work fine with the esp-idf a2dp example.

Any help or thoughts would be greatly appreciated. I did try changing the board type to generic, but that didn't seem to make any difference.

Thank you!

[D] AudioKit.h : 186 - audio_tools::AudioKitStreamConfig audio_tools::AudioKitStream::defaultConfig(audio_tools::RxTxMode)
[D] AudioKit.h : 194 - bool audio_tools::AudioKitStream::begin(audio_tools::AudioKitStreamConfig)
[D] AudioStreams.h : 52 - virtual void audio_tools::AudioStream::setAudioInfo(audio_tools::AudioBaseInfo)
[I] AudioTypes.h : 63 - sample_rate: 44100
[I] AudioTypes.h : 64 - channels: 2
[I] AudioTypes.h : 65 - bits_per_sample: 16
[I] I2SConfig.h : 104 - rx/tx mode: TX_MODE
[I] I2SConfig.h : 105 - port_no: 0
[I] I2SConfig.h : 106 - is_master: Master
[I] I2SConfig.h : 107 - sample rate: 44100
[I] I2SConfig.h : 108 - bits per sample: 16
[I] I2SConfig.h : 109 - number of channels: 2
[I] I2SConfig.h : 110 - i2s_format: I2S_STD_FORMAT
[I] I2SConfig.h : 112 - auto_clear:165
[I] I2SConfig.h : 119 - buffer_count:4
[I] I2SConfig.h : 120 - buffer_size:1024
[I] I2SConfig.h : 124 - pin_bck: 26
[I] I2SConfig.h : 126 - pin_ws: 22
[I] I2SConfig.h : 128 - pin_data: 25
[D] AudioKit.h : 36 - audiokit::AudioKitConfig audio_tools::AudioKitStreamConfig::toAudioKitConfig()
[D] AudioKit.h : 139 - -> AUDIO_HAL_CODEC_MODE_DECODE
[D] AudioKit.h : 106 - audio_hal_iface_format_t audio_tools::AudioKitStreamConfig::toFormat()
[D] AudioKit.h : 121 - -> 0
[D] AudioKit.h : 79 - audio_hal_iface_samples_t audio_tools::AudioKitStreamConfig::toSampleRate()
[D] AudioKit.h : 90 - -> 44100
[D] AudioKit.h : 62 - audio_hal_iface_bits_t audio_tools::AudioKitStreamConfig::toBits()
[D] AudioKit.h : 69 - -> 16
[W] AudioKit.h : 55 - sd_active = false
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   ->p_wire->endTransmission: 5
Error:   codec init failed!
Error:   audio_hal_init
[E] AudioKit.h : 199 - begin faild: please verify your AUDIOKIT_BOARD setting: 5

[pschatzmann]

I don't understand, why are you using an AudioKit as output device ? You try to configure the ES8388 sound chip, but if you don't have one this does not make any sense....

Just use a regular I2SStream as output sink!

[rbagdazian]

Right, just my lack of familiarity with the low level parts of the library. I'll do as you suggest. Thank you!