Downloadable computer software application for mobile devices, namely software for obtaining and analyzing the audio environment of children, providing feedback regarding the quantity of communications between caregivers and children, and providing tips to caregivers to foster the brain development of children. Downloadable computer software application for mobile devices, namely software for use by teachers to obtain and analyze the audio environment of children and measure the language development of children and language of caregivers to provide data regarding the quality of early learning settings and signs of parent and/or caregiver depression. Downloadable computer software application for mobile devices, namely software for use by parents and caregivers that interacts with a wearable audio monitoring device used to analyze children's audio environments, indicate children's language development, and provide parents and caregivers with personalized feedback and guidance for enhancing the language environment and fostering children's brain development. Downloadable computer software application to provide notifications to parents and caregivers of the presence of signs of potential postpartum depression or other mental health disorders. Downloadable computer software application for mobile devices, namely software for use by teachers that interacts with a wearable audio monitoring device to analyze children's audio environments, indicate children's language development, and provide teachers with feedback and guidance for enhancing each child's language environment and fostering each child's brain development. Downloadable computer software application for mobile devices, namely software for use by health care providers, early intervention service providers, and other professionals in the field of children's healthy physical, cognitive, and social-emotional development. Downloadable computer software application for mobile devices that interacts with a wearable audio monitoring device to provide an understanding of audio environments and language development. Wearable device to monitor audio communications and measure the quantity of communications between caregivers and children. Wearable device to monitor audio communications and measure children's language development and signs of parent and/or caregiver depression. Wearable device to monitor and measure audio communications between children and parents and/or caregivers to provide data that helps identify the level of language development in children and signs of parent and/or caregiver depression. Wearable device to monitor audio communications and measure the quantity of communications between caregivers and children

Non-downloadable computer software application for mobile devices, namely software for use by parents and caregivers that interacts with a wearable audio monitoring device used to analyze children's audio environments, indicate children's language development, and provide parents and caregivers with personalized feedback and guidance for enhancing the language environment and fostering children's brain development. Non-downloadable computer software application to provide notifications to parents and caregivers of the presence of signs of potential postpartum depression or other mental health disorders. Non- downloadable computer software application for mobile devices, namely software for use by teachers that interacts with a wearable audio monitoring device to analyze children's audio environments, indicate children's language development, and provide teachers with feedback and guidance for enhancing each child's language environment and fostering each child's brain development. Non-downloadable computer software for measuring the audio environment of children and providing real-time feedback regarding the quantity of communications between caregivers and children; Non-downloadable computer software for obtaining and analyzing the audio environment of children, providing feedback regarding the quantity of communications between caregivers and children, and providing tips to caregivers to foster the brain development of children. Non-downloadable computer software application for mobile devices, namely software for use by teachers which is used to obtain and analyze the audio environment of children and measure the language development of children and to provide data regarding the quality of early learning settings and signs of parent and/or caregiver depression