Welcome to Android Central! Unfortunately, I don't think so. Which phone? Is the volume problem primarily with the main speaker, or also using wired or Bluetooth headphones?
Thank you for your response. I have a Bold (Blu) C2 Android 9 Pie (Go edition). There is nothing wrong with the phone or the audio. The overall volume is a little lower than other phones I purchased. However, I would like to increase the volume to Google Assistant and Google Maps if possible.
Ok -- just to be sure, all of the volume sliders are up? Just want to make sure you're not assuming it's the Ringtone/Notification volume slider that's responsible, when in fact it's the Media volume slider.