@EN1981 correction: It appears that those speakers plug into USB only for power and then also require plugging into a headphone jack for audio. In that case, when you plug something into the headphone jack, you should see a popup dialog box asking you what you plugged in, and you should then click "Line Out / Speakers" or something along those lines. Are you seeing that popup dialog? The reason for the popup is that the audio jack is a multi-purpose connector that can be used for speakers, a microphone, headsets, an external audio source you're trying to record, etc., and it has to set itself up differently depending on what you connect.
If you're not seeing that dialog, you may have to manually specify that you have speakers connected. I don't have a Latitude 7390 specifically, but on my Latitude 7480, I have to open the Waves MaxxAudio Pro application, click Playback, and then configure the "Select Output Device" selection in the bottom center of that application. In there if you click Advanced, you'll also see a checkbox to determine whether the popup dialog I mentioned above should be displayed when you connect something.
If you don't have that application on your system, try looking for an application called Dell Audio. If you don't have that either, you might have to install the full audio driver package for that system, which you can find at support.dell.com.
@EN1981 Go to Start > Settings > System > Sound and make sure the Amazon speakers are selected as the output device. USB-based speakers present themselves to the system as a completely separate audio device from the system's internal audio chip, and your system might not have automatically switched over to them as the default audio output device.
jphughan
9 Legend
•
14K Posts
0
April 14th, 2020 12:00
@EN1981 correction: It appears that those speakers plug into USB only for power and then also require plugging into a headphone jack for audio. In that case, when you plug something into the headphone jack, you should see a popup dialog box asking you what you plugged in, and you should then click "Line Out / Speakers" or something along those lines. Are you seeing that popup dialog? The reason for the popup is that the audio jack is a multi-purpose connector that can be used for speakers, a microphone, headsets, an external audio source you're trying to record, etc., and it has to set itself up differently depending on what you connect.
If you're not seeing that dialog, you may have to manually specify that you have speakers connected. I don't have a Latitude 7390 specifically, but on my Latitude 7480, I have to open the Waves MaxxAudio Pro application, click Playback, and then configure the "Select Output Device" selection in the bottom center of that application. In there if you click Advanced, you'll also see a checkbox to determine whether the popup dialog I mentioned above should be displayed when you connect something.
If you don't have that application on your system, try looking for an application called Dell Audio. If you don't have that either, you might have to install the full audio driver package for that system, which you can find at support.dell.com.
jphughan
9 Legend
•
14K Posts
0
April 14th, 2020 12:00
@EN1981 Go to Start > Settings > System > Sound and make sure the Amazon speakers are selected as the output device. USB-based speakers present themselves to the system as a completely separate audio device from the system's internal audio chip, and your system might not have automatically switched over to them as the default audio output device.
EN1981
2 Posts
0
April 15th, 2020 04:00
we figured it out, user error