asoundrcġ.2) Edit below line in file nf $sudo vim /usr/share/alsa/nfġ.3) Change audio levels/setting using alsamixer utility $alsamixerġ.4) Command to record audio $arecord -D plughw:1 -f S16_LE -r 48000 -d 5. If file is not present create it $ touch. Try by referring to 'hw:1' later in your C++ code if it working.ġ.1) Create/edit file. With this you can test your USB sound adapters are working correctly as input and output module.I have not tested before a usecase with above mentioned library in C++ code, will give it a try soon. Try to follow below steps to enable audio recording and playback from a usb-sound adapter for rpi with alsa first. What should I use instead of hw:0 if I want to play via the first or second CM108 Audio Controller? I already tried hw:1 and hw:2 and it does not work. I understand that hw:0 is a sound card of the Pi. So sound is played via the Pi successfully. While (mpg123_read(mh, buffer, buffer_size, &done) = MPG123_OK)

I tried these: ao_initialize() ĭev = ao_open_live(driver, &format, poption) I want to play my MP3 via CM108 Audio Controllers with libao. SMSC9512/9514 Fast Ethernet Adapterīus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.īus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

USB 2.0 Hub / D-Link DUB-H4 USB 2.0 Hubīus 001 Device 004: ID 1bcf:0005 Sunplus Innovation Technology Inc.īus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. CM108 Audio Controllerīus 001 Device 006: ID 05e3:0606 Genesys Logic, Inc. CM108 Audio Controllerīus 001 Device 007: ID 0d8c:013c C-Media Electronics, Inc. Keyboard K120 for Businessīus 001 Device 008: ID 0d8c:013c C-Media Electronics, Inc. **** List of PLAYBACK Hardware Devices ****Ĭard 0: ALSA, device 0: bcm2835 ALSA Ĭard 0: ALSA, device 1: bcm2835 ALSA Ĭard 1: Device, device 0: USB Audio Ĭard 2: Device_1, device 0: USB Audio īus 001 Device 005: ID 046d:c31c Logitech, Inc. I get the following from aplay -l, lsusb: $ aplay -l

Using c media usb audio device