1. A method, performed by at least one computer processor executing computer program instructions tangibly embodied on a computer-readable medium, the method comprising: (A) identifying a first portion of an original audio signal, the first portion representing sensitive content, comprising: (A)(1) generating a report, the report comprising: (a) content representing information in the original audio signal, and (b) a timestamp indicating a temporal position of the first portion of the original audio signal; (A)(2) identifying a first personally identifying concept in the report; (A)(3) identifying a first timestamp in the report corresponding to the first personally identifying concept; (A)(4) identifying a portion of the original audio signal corresponding to the first personally identifying concept by using the first timestamp; and (B) producing a modified audio signal in which the identified first portion is protected against unauthorized disclosure by applying a security measure to the identified first portion to produce the modified audio signal, wherein the identified first portion in the modified audio signal is protected against unauthorized disclosure.
1. A method, performed by at least one computer processor executing computer program instructions tangibly embodied on a computer-readable medium, the method comprising: (A) identifying a first portion of an original audio signal, the first portion representing sensitive content, comprising: (A)(1) generating a report, the report comprising: (a) content representing information in the original audio signal, and (b) a timestamp indicating a temporal position of the first portion of the original audio signal; (A)(2) identifying a first personally identifying concept in the report; (A)(3) identifying a first timestamp in the report corresponding to the first personally identifying concept; (A)(4) identifying a portion of the original audio signal corresponding to the first personally identifying concept by using the first timestamp; and (B) producing a modified audio signal in which the identified first portion is protected against unauthorized disclosure by applying a security measure to the identified first portion to produce the modified audio signal, wherein the identified first portion in the modified audio signal is protected against unauthorized disclosure. 2. The method of claim 1 , wherein the sensitive content comprises personally identifying content.