Hearing aid with enhanced vent

A hearing aid, comprising:

• a microphone for receiving acoustic signals and converting them to electrical signals;
• electronic circuitry for processing the electrical signals;
• a speaker for converting the processed electrical signals into acoustic signals;
• a shell that encases at least portions of the microphone, the electronic circuitry, and the speaker, the shell further encasing an inside volume;
• a vent with an opening in the vent into the inside volume of the hearing aid shell;
• a flexible membrane that covers the opening in the vent into the inside volume of the hearing aid shell;
• and
• an acoustic resistor that covers the flexible membrane on the side of hearing aid components;
• wherein the acoustic resistor provides gain stability and smoother frequency response for the hearing aid over a design that does not include the acoustic resistor.

A hearing aid, comprising:

• a microphone for receiving acoustic signals and converting them to electrical signals;
• electronic circuitry for processing the electrical signals;
• a speaker for converting the processed electrical signals into acoustic signals;
• a shell that encases at least portions of the microphone, the electronic circuitry, and the speaker, the shell further encasing an inside volume;
• a vent with an opening in the vent into the inside volume of the hearing aid shell;
• a flexible membrane that covers the opening in the vent into the inside volume of the hearing aid shell;
• and
• an acoustic resistor that covers the flexible membrane on the side of hearing aid components;
• wherein the membrane behaves like a very thin non-stretched film that re-radiates sound pressure on one side to its other side without substantial losses.