Difference between revisions of "Audio setup"
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<span style="font-size:medium;"><span style="font-size:small;">In order to record audio, we need to connect a microphone to the Pi. If you connect a USB mic, you can ensure that the Pi recognizes it by typing<span style="font-family:courier new,courier,monospace;">lsusb</span> at the command line</span></span> | <span style="font-size:medium;"><span style="font-size:small;">In order to record audio, we need to connect a microphone to the Pi. If you connect a USB mic, you can ensure that the Pi recognizes it by typing<span style="font-family:courier new,courier,monospace;">lsusb</span> at the command line</span></span> | ||
| − | <code>pi@raspberrypi ~ $ lsusb<br/>Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.<br/>Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub<br/>Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.<br/>Bus 001 Device 004: ID 0000:0538<br/>Bus 001 Device 006: ID 0d8c:013c C-Media Electronics, Inc. CM108 Audio Controller<br/>Bus 001 Device 005: ID 1c4f:0002 SiGma Micro Keyboard TRACER Gamma Ivory</code> | + | <code>pi@raspberrypi ~ $ lsusb</code> |
| + | |||
| + | <code><br/>Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.<br/>Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub<br/>Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.<br/>Bus 001 Device 004: ID 0000:0538<br/>Bus 001 Device 006: ID 0d8c:013c C-Media Electronics, Inc. CM108 Audio Controller<br/>Bus 001 Device 005: ID 1c4f:0002 SiGma Micro Keyboard TRACER Gamma Ivory</code> | ||
Here we have connected the C-Media USB Microphone. | Here we have connected the C-Media USB Microphone. | ||
Revision as of 14:02, 29 April 2015
For a number of experiments we will need to manipulate audio signals with the Raspberry Pi. Here we give a few hints on how to get audio to work.
Audio Input
In order to record audio, we need to connect a microphone to the Pi. If you connect a USB mic, you can ensure that the Pi recognizes it by typinglsusb at the command line
pi@raspberrypi ~ $ lsusb
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 0000:0538
Bus 001 Device 006: ID 0d8c:013c C-Media Electronics, Inc. CM108 Audio Controller
Bus 001 Device 005: ID 1c4f:0002 SiGma Micro Keyboard TRACER Gamma Ivory
Here we have connected the C-Media USB Microphone.
You can obtain the device details by typing arecord -l
pi@raspberrypi ~ $ arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
