The speaker then showed connected.\u00a0 Now we know its there let’s try to set the system to use it. Running the command:<\/p>\n
alsamixer -D bluealsa<\/pre>\nWe get:<\/p>\n
![\"\"](\"http:\/\/benincosa.com\/wp-content\/uploads\/2018\/10\/Screen-Shot-2018-10-07-at-12.25.24-PM-300x238.png\")
<\/p>\n
This is great because it shows the speaker is connected and ready to work.\u00a0 Now we can play the wav file through this bluetooth speaker.\u00a0 The default audio of the Raspberry Pi is set to play out of the analog jack.\u00a0 So if we run:<\/p>\n
aplay test.wav<\/pre>\nIt doesn’t play anything.\u00a0 Changing the command we can specify the device to play through:<\/p>\n
aplay -D bluealsa:HCI=hci0,DEV=32:D9:46:EE:D3:AF,PROFILE=a2dp test.wav<\/pre>\nHere the mac address shown below is the mac address of the bluetooth device.\u00a0 It plays but it is really staticy, so the recording isn’t may favorite.\u00a0 To determine if its the microphone or the audio we simply play another file:<\/p>\n
aplay -D bluealsa:HCI=hci0,DEV=32:D9:46:EE:D3:AF,PROFILE=a2dp voice\/foo.wav<\/pre>\nWe can simplify this device configuration by adding it to the \/usr\/share\/alsa\/alsa.conf.d\/20-bluealsa.conf.\u00a0 We add the following at the end:<\/p>\n
pcm.oontz {\r\n type plug\r\n slave.pcm {\r\n type bluealsa\r\n device \"32:D9:46:EE:D3:AF\"\r\n profile \"a2dp\"\r\n }\r\n hint {\r\n show on\r\n description \"OONTZ Angle 3 3AF\"\r\n }\r\n}<\/pre>\nIn the above I’ve just named my device “oontz” and put in my own MAC address of the device as well as a description.\u00a0 Everything else should be the same for your setup.\u00a0 Then we can run:<\/p>\n
aplay -D oontz voice\/foo.wav<\/pre>\nNow, to make this the default we can add a similar entry to the ~\/.asoundrc file.\u00a0 Mine looks like this:<\/p>\n
pcm.!default {\r\n\ttype plug\r\n\tslave.pcm {\r\n\t\ttype bluealsa\r\n\t\tdevice \"32:D9:46:EE:D3:AF\"\r\n\t\tprofile \"a2dp\"\r\n\t}\r\n\r\n}<\/pre>\nIt is similar to the previous entry, but we have named it pcm.!default.\u00a0 Now when we play the wav file it will use this as the default:<\/p>\n
aplay voice\/foo.wav\r\nmplayer voice\/foo.wav<\/pre>\nCool.\u00a0 Default sound setup for bluetooth.\u00a0 Persistent reconnect will be the next topic!<\/p>\n
<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
If you want your own Jarvis from Ironman the first step is to have a computer that can listen to what you say and then talk back to you.\u00a0 The software for that is the hard part but with some AI and RNNs we can get some pretty good functionality.\u00a0 That comes later, so let’s…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[920,868],"tags":[870,871,869],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/benincosa.com\/index.php?rest_route=\/wp\/v2\/posts\/3664"}],"collection":[{"href":"https:\/\/benincosa.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/benincosa.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/benincosa.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/benincosa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3664"}],"version-history":[{"count":4,"href":"https:\/\/benincosa.com\/index.php?rest_route=\/wp\/v2\/posts\/3664\/revisions"}],"predecessor-version":[{"id":3669,"href":"https:\/\/benincosa.com\/index.php?rest_route=\/wp\/v2\/posts\/3664\/revisions\/3669"}],"wp:attachment":[{"href":"https:\/\/benincosa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/benincosa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3664"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/benincosa.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}