Changes between Version 13 and Version 14 of venice/multimedia

Timestamp:

11/05/2024 05:41:49 PM (2 weeks ago)

Author:

Ryan Erbstoesser

Comment:

add usb audio notes

venice/multimedia

@@ -452 +452 @@
 = Audio
 
-Please see [wiki:venice/mipi#Audio]
+Please see [wiki:venice/mipi#Audio] to leverage audio off the mipi header on the Venice SBCs. 
+
+USB audio is always an option and most chipsets will work with basic linux tools such as aplay and arecord. 
+
+Example below with Bus 002 Device 002: ID 046d:0a7a Logitech, Inc. Logi USB Headset
+
+Example below playing basic audio file over usb audio:
+{{{
+root@noble-venice:~# aplay -l
+**** List of PLAYBACK Hardware Devices ****
+card 1: Headset [Logi USB Headset], device 0: USB Audio [USB Audio]
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+root@noble-venice:~# aplay -D sysdefault:CARD=1 /usr/share/sounds/alsa/Rear_Center.wav
+Playing WAVE '/usr/share/sounds/alsa/Rear_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
+}}}
+
+
+Example below Record wav file from USB microphone and then play back:
+{{{
+root@noble-venice:~# arecord -l
+**** List of CAPTURE Hardware Devices ****
+card 1: Headset [Logi USB Headset], device 0: USB Audio [USB Audio]
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+root@noble-venice:~# arecord -D sysdefault:CARD=1 -f cd -d 10 -t wav /tmp/foo.wav
+Recording WAVE '/tmp/foo.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
+
+^CAborted by signal Interrupt...
+arecord: pcm_read:2240: read error: Interrupted system call
+root@noble-venice:~# aplay -D sysdefault:CARD=1 /tmp/foo.wav 
+Playing WAVE '/tmp/foo.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
+root@noble-venice:~# 
+
+
+}}}