Ambient noise headphones

摘要

The ambient noise headphone is a pair of headphones or a pair of earbuds that have an integral external microphone. The external microphone picks up the ambient noise external to the user and mixes this ambient noise with the primary audio source being listened to by the user. The external microphone circuitry has a volume control that allows the user to set the volume level of the ambient noise that is heard. This arrangement allows the user to monitor his external environment by controlling the amount of noise that the user can hear when listening to the pair of headphones or to the pair of earbuds. The ambient noise headphone comprises a pair of headphones, an external microphone, and a mixing circuit.

主权项

1. An audio device comprising:
a headphones, an external microphone, and a mixing circuit; wherein the audio device further comprises an integral external microphone; wherein the external microphone picks up an ambient noise external to a user; wherein the audio device mixes the ambient noise with a plurality of audio sources; wherein the mixing circuit has volume control; wherein the volume control independently sets the volume level of the ambient noise that is heard through the headphones; wherein the headphones comprise a first speaker, a second speaker, a first cable, and a first jack; wherein the mixing circuit receives an audio signal from the external microphone; wherein the mixing circuit amplifies the audio signal a selected volume level; wherein the volume level is selected using a volume control; wherein the plurality of audio sources further comprises a first audio source; wherein the mixing circuit mixes the ambient noise audio source with the first channel audio source and announces the resulting mixed sources through the first speaker; wherein the plurality of audio sources further comprises a second audio source; wherein the mixing circuit mixes the ambient noise audio source with the second channel audio source and announces the resulting mixed sources through the second speaker; wherein the mixing circuit further comprises an input circuit, a first channel, and a second channel; wherein the input circuit generates the ambient noise audio source; wherein the first channel mixes the ambient noise audio source with the first channel audio source and announces the resulting mixed sources through the first speaker; wherein the second channel mixes the ambient noise audio source with the second channel audio source and announces the resulting mixed sources through the second speaker; wherein the input circuit further comprises a first resistor, a second resistor, and a first amplifier; wherein the second resistor is a variable resistor; wherein the first amplifier, the first resistor and the second resistor are configured as an inverting amplifier with variable gain.