A computer-implemented system and method for transcription error reduction is provided. A transcribed value and a confidence score are assigned to each utterance in a stream of audio data. Those utterances with confidence scores that fall below a confidence threshold are identified as questionable utterances. At least one of the questionable utterances is placed into a pool of related utterances also determined to be questionable. A determination is made as to whether the pool satisfies a size threshold within a predetermined amount of time. A sample of the questionable utterances from the pool is obtained when the pool satisfies the size threshold within the predetermined amount of time. The sample of questionable utterances is provided to at least one human transcriber for verification.