Difference between revisions of "Audio setup"
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'''<span style="font-size:medium;">Audio Input</span>''' | '''<span style="font-size:medium;">Audio Input</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> | + | <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</code><br/><code>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><br/><code>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> | ||
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<code>pi@raspberrypi ~ $ arecord -l</code> | <code>pi@raspberrypi ~ $ arecord -l</code> | ||
| − | **** | + | <code>**** List of CAPTURE Hardware Devices ****</code> |
<code>card 1: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]</code> | <code>card 1: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]</code> | ||
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</code> | </code> | ||
| + | |||
| + | These device details will be useful in recording audio. | ||
Revision as of 14:22, 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 typing lsusb at the command line
pi@raspberrypi ~ $ lsusbBus 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
These device details will be useful in recording audio.
