I have been working on voice assistant with an ESP32. Got it working but I get static through the speaker, on startup, until I get the voice reply. After that the static/noise goes away. I have attached a schematic of the wiring.
Also, sometimes the voice response stops.
Watching… I also get this issue and also have an LED attached.
I have the same problem. Has anyone found a fix yet?
I also get this same thing.
have the same issue, was thinking is there a way to send a “start up” sound or message as a work aound?
Thoughts?
So I think I fixed this by changing a few configurations and wiring.
output configuration to set this low on boot.output:
- platform: gpio
pin:
number: GPIO25
allow_other_uses: true
id: set_low_speaker
speaker:
platform: i2s_audio
id: external_speaker
dac_type: external
i2s_audio_id: i2s_out
i2s_dout_pin:
number: GPIO25
allow_other_uses: true
Hope this helps.
Unfortunately your code did not solve my problem, unless there was more to it. Did you need to do anything on the HA side to make this work? I used your code exactly other than changing to the pin I was using. After I loaded the code, everything worked just fine. Then I pulled the plug on the ESP32 and powered back up. After it booted up, the horrible noise resumed until I got it to say something.
I thought the same idea but I cannot see a way to say something in the esp32 code.
this worked for me
output:
- platform: gpio
pin:
number: GPIO32
allow_other_uses: true
id: set_low_speaker
speaker:
- platform: i2s_audio
id: my_speaker
dac_type: external
i2s_audio_id: i2s_in
i2s_dout_pin:
number: GPIO32 #DIN
allow_other_uses: true
mode: mono
Try setting it off in the on_boot
esphome:
name: office-va
friendly_name: Office VA
# Automation to perform every time the device boots
on_boot:
priority: 600
then:
- output.turn_off: set_low_speaker
I did add code at startup to turn it off but still no joy. However, I just solved the issue without even adding new code. The bottom line is that this issue depends on which ESP32 dev board you are using AND which pins you use for the amp i/o. I was thinking about using a tiny relay to disconnect the speaker on startup controlled by another pin which would then connect the speaker the first time speech was needed. While thinking about this I thought to check for voltage on another pin on startup and lo and behold I realized that there was none, unlike the pin I was using for the amp! So, I switched to another pin and updated the firmware speaker out pin to the new pin and voila! No noise on startup.
Thanks to @steriku for mentioning the voltage on startup that causes this.
So, if you are experiencing this, grab your voltage meter and find other gpio pins!
\n you post your full yaml? I have the same parts and cant get anywhere with it…
This worked for me as well! Thanks for the code 
esphome:
name: voice-assist-003
friendly_name: Voice Assist 003
on_boot:
- priority: -100
then:
- wait_until: api.connected
- delay: 1s
- if:
condition:
switch.is_on: use_wake_word
then:
- voice_assistant.start_continuous:
esp32:
board: esp32dev
framework:
type: arduino
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "+ONyY="
ota:
password: ""
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
manual_ip:
static_ip: xxx.xxx.xxx.xxx
gateway xxx.xxx.xxx.xxx
subnet: xxx.xxx.xxx.xxx
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "IBEHERE"
password: "PASSWORD?????"
captive_portal:
i2s_audio:
- id: i2s_in
i2s_lrclk_pin: GPIO26 #WS
i2s_bclk_pin: GPIO25 #SCK
microphone:
- platform: i2s_audio
adc_type: external
pdm: false
id: mic_i2s
channel: right
bits_per_sample: 32bit
i2s_audio_id: i2s_in
i2s_din_pin: GPIO33 #SD Pin from the INMP441 Microphone
media_player:
- platform: i2s_audio
name: "esp_speaker"
id: media_player_speaker
i2s_audio_id: i2s_in
dac_type: external
i2s_dout_pin: GPIO27 # DIN Pin of the MAX98357A Audio Amplifier
mode: mono
voice_assistant:
microphone: mic_i2s
id: va
noise_suppression_level: 2
auto_gain: 31dBFS
volume_multiplier: 2.0
use_wake_word: false
media_player: media_player_speaker
on_wake_word_detected:
- light.turn_on:
id: led_light
on_listening:
- light.turn_on:
id: led_light
effect: "Rainbow Spinner"
# red: 71%
# green: 0%
# blue: 71%
on_stt_end:
- light.turn_on:
id: led_light
effect: "None"
red: 0%
green: 100%
blue: 0%
on_error:
- light.turn_on:
id: led_light
effect: "None"
red: 100%
green: 0%
blue: 0%
- if:
condition:
switch.is_on: use_wake_word
then:
- switch.turn_off: use_wake_word
- delay: 1sec
- switch.turn_on: use_wake_word
on_tts_start: # this is required to play the output on a media player
- homeassistant.service:
service: tts.speak
data:
media_player_entity_id: media_player.voice_assist_001_esp_speaker #replace this with your media player entity id
message: !lambda 'return x;'
entity_id: tts.piper_2 #replace this with your piper tts id.
on_client_connected:
- if:
condition:
switch.is_on: use_wake_word
then:
- voice_assistant.start_continuous:
on_client_disconnected:
- if:
condition:
switch.is_on: use_wake_word
then:
- voice_assistant.stop:
on_end:
- light.turn_off:
id: led_light
binary_sensor:
- platform: status
name: API Connection
id: api_connection
filters:
- delayed_on: 1s
on_press:
- if:
condition:
switch.is_on: use_wake_word
then:
- voice_assistant.start_continuous:
on_release:
- if:
condition:
switch.is_on: use_wake_word
then:
- voice_assistant.stop:
switch:
- platform: template
name: Use wake word
id: use_wake_word
optimistic: true
restore_mode: RESTORE_DEFAULT_ON
entity_category: config
on_turn_on:
- lambda: id(va).set_use_wake_word(true);
- if:
condition:
not:
- voice_assistant.is_running
then:
- voice_assistant.start_continuous
on_turn_off:
- voice_assistant.stop
- lambda: id(va).set_use_wake_word(false);
light:
- platform: neopixelbus
id: led_light
type: grb
pin: GPIO32 # DIN pin of the LED Strip
num_leds: 24 # change the Number of LEDS according to your LED Strip.
name: "Light"
variant: ws2812x
default_transition_length: 0.5s
effects:
- addressable_scan:
name: Scan Effect With Custom Values
move_interval: 50ms
scan_width: 2
- addressable_rainbow:
name: Rainbow Spinner
speed: 50
width: 24
- addressable_rainbow:
name: Rainbow Fader
speed: 50
- addressable_random_twinkle:
name: Random Twinkle Effect With Custom Values
twinkle_probability: 50%
progress_interval: 32ms
- addressable_flicker:
name: Flicker Effect With Custom Values
update_interval: 16ms
intensity: 100%
Could you explain please. I see that both i2s_in and i2s_out are declared in your code for audio:
i2s_audio:
- id: i2s_in
i2s_lrclk_pin: GPIO25
i2s_bclk_pin: GPIO26
- id: i2s_out
i2s_lrclk_pin: GPIO12
i2s_bclk_pin: GPIO13
While most esp speaker schematics I’ve ever seen only had the i2s_in configuration. What is the point of this, what hardware are you using for this configuration?
Hey Elf,
in the i2s_audio you can declare which pins it should use for input audio, coming from mic, audio-jack or something liike that. the i2s_out tells which pins are used for outgoing audio in our case to the amplifier.
This worked for me. If you end up here like I did trying to follow @tpage’s award-winning Egg project, and get the static on startup, here is the code I used from @Steven_Heffernan applied to the script from here
output:
- platform: gpio
pin:
number: GPIO27
allow_other_uses: true
id: set_low_speaker
media_player:
- platform: i2s_audio
name: "esp_speaker"
id: media_player_speaker
i2s_audio_id: i2s_in
dac_type: external
i2s_dout_pin:
number: GPIO27 #DIN Pin of the MAX98357A Audio Amplifier
allow_other_uses: true
mode: mono
Thanks for the mention/tag…
Thanks for the leg up! I’m using your schematic and code with my own design. The egg looks super cool, but it’s a bit big for my tastes. Here is another option. The wiring is a little tight but works. Printables