readme
[](https://components.espressif.com/components/espressif/pwm_audio)
# Component: pwm_audio
[documentation](https://docs.espressif.com/projects/espressif-esp-iot-solution/en/latest/audio/pwm_audio.html)
The PWM audio function uses the internal LEDC peripheral in ESP32 to generate PWM audio, which does not need an external audio Codec chip.
## Features
- Allows any GIPO with output capability as an audio output pin
- Supports 8-bit ~ 16-bit PWM resolution
- Supports stereo
- Supports 8 ~ 48 KHz sampling rate
[Here](https://github.com/espressif/esp-iot-solution/tree/master/examples/audio/wav_player) is a simple player example that uses PWM to output audio.
changelog
# ChangeLog
## v1.1.1 - 2023-03-20
### Bug Fixes:
* Disable gptimer in function pwm_audio_stop and pwm_audio_deinit.
## v1.1.0 - 2023-02-20
### Enhancements:
* Support idf release/5.0
* Remove esp32xx_timer_group_struct.h
## v1.1.0 - 2022-06-21
### Enhancements:
* First submit
* Support idf release/4.4