ESP-GMF-Audio

中文版

ESP GMF Audio is a collection of GMF elements related to audio processing, including audio encoding, decoding, and audio effect processing algorithms. The currently supported audio modules are listed in the table below.

Name	TAG	Function	Method	Input Port	Output Port	Input blocking time	Output blocking time	Dependent on Audio Information
AUDIO_DEC	aud_dec	Audio decoder: MP3,AAC,AMRNB, AMRWB,FLAC,WAV,M4A,TS	Nil	Single	Single	User configurable, default value is maximum delay	User configurable, default value is maximum delay	No
AUDIO_ENC	aud_enc	Audio encoder: AAC,AMRNB,AMRWB, ADPCM,OPUS,PCM	Nil	Single	Single	User configurable, default value is maximum delay	User configurable, default value is maximum delay	Yes
RATE_CVT	aud_rate_cvt	Audio sampling rate adjustment	`set_dest_rate`	Single	Single	Maximum delay	Maximum delay	Yes
BIT_CVT	aud_bit_cvt	Audio bit-depth conversion	`set_dest_bits`	Single	Single	Maximum delay	Maximum delay	Yes
CH_CVT	aud_ch_cvt	Audio channel conversion	`set_dest_ch`	Single	Single	Maximum delay	Maximum delay	Yes
ALC	aud_alc	Audio volume adjustment	`set_gain` `get_gain`	Single	Single	Maximum delay	Maximum delay	Yes
EQ	aud_eq	Audio equalizer adjustment	`set_para` `get_para` `enable_filter` `disable_filter`	Single	Single	Maximum delay	Maximum delay	Yes
FADE	aud_fade	Audio fade-in and fade-out effects	`set_mode` `get_mode` `reset_weight`	Single	Single	Maximum delay	Maximum delay	Yes
SONIC	aud_sonic	Audio pitch and speed shifting effects	`set_speed` `get_speed` `set_pitch` `get_pitch`	Single	Single	Maximum delay	Maximum delay	Yes
MIXER	aud_mixer	Audio mixing effects	`set_info` `set_mode`	Multiple	Single	The blocking time for the first channel is 0, while the blocking time for other channels is maximum delay	Maximum delay	No
INTERLEAVE	aud_intlv	Data interleaving	Nil	Multiple	Single	User configurable, default value is maximum delay	Maximum delay	Yes
DEINTERLEAVE	aud_deintlv	Data de-interleaving	Nil	Single	Multiple	Maximum delay	User configurable, default value is maximum delay	Yes

Usage

The ESP GMF Audio is often used in combination to form a pipeline. For example code, please refer to test_app。

You can also create and compile a project using the following commands, taking the pipeline_play_embed_music project as an example. Before starting, make sure you have a working ESP-IDF environment.

1. Create the Example Project

Create the pipeline_play_embed_music example project based on the gmf_examples component (using version v0.7.0 as an example; update the version as needed):

Shell

idf.py create-project-from-example "espressif/gmf_examples=0.7.0:pipeline_play_embed_music"

2. Build and Flash the Project Using an ESP32-S3 Board

Shell

cd pipeline_play_embed_music
idf.py set-target esp32s3
idf.py -p YOUR_PORT flash monitor

espressif/gmf_audio

readme

ESP-GMF-Audio

Usage

1. Create the Example Project

2. Build and Flash the Project Using an ESP32-S3 Board

Links

Supports all targets

License: Custom

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