/********************************************************************** * RPi 3B Aduio 3.5mm output * 说明： * 看到树莓派上一个3.5mm耳机口，从来没用过，折腾一下。 * * 2018-7-13 深圳 宝安西乡 曾剑锋 *********************************************************************/ 一、参考文档： 1. 树莓派如何选择3.5mm耳机孔输出声音 https://jingyan.baidu.com/article/64d05a02220053de55f73bbc.html 二、具体操作： 1. sudo raspi-config 2. 选择流程： Raspberry Pi 3 Model B Rev 1.2 ┌─────────┤ Raspberry Pi Software Configuration Tool (raspi-config) ├──────────┐ │ │ │ 1 Change User Password Change password for the current u │ │ 2 Network Options Configure network settings │ │ 3 Boot Options Configure options for start-up │ │ 4 Localisation Options Set up language and regional sett │ │ 5 Interfacing Options Configure connections to peripher │ │ 6 Overclock Configure overclocking for your P │ │ 7 Advanced Options Configure advanced settings <---│ │ 8 Update Update this tool to the latest ve │ │ 9 About raspi-config Information about this configurat │ │ │ │ │ │ │ │ <Select> <Finish> │ │ │ └──────────────────────────────────────────────────────────────────────────────┘ ┌─────────┤ Raspberry Pi Software Configuration Tool (raspi-config) ├──────────┐ │ │ │ A1 Expand Filesystem Ensures that all of the SD card s │ │ A2 Overscan You may need to configure oversca │ │ A3 Memory Split Change the amount of memory made │ │ A4 Audio Force audio out through HDMI or 3 <---│ │ A5 Resolution Set a specific screen resolution │ │ A6 Pixel Doubling Enable/Disable 2x2 pixel mapping │ │ A7 GL Driver Enable/Disable experimental deskt │ │ │ │ │ │ │ │ │ │ │ │ <Select> <Back> │ │ │ └──────────────────────────────────────────────────────────────────────────────┘ ┌──────────────────────────────────────────────────────────┐ │ Choose the audio output │ │ │ │ 0 Auto │ │ 1 Force 3.5mm ('headphone') jack <--- │ │ 2 Force HDMI │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ <Ok> <Cancel> │ │ │ └──────────────────────────────────────────────────────────┘ 3. speaker-test -t sine