1. An apparatus, comprising: a memory configured to store instructions; and a processor configured to execute the instructions to: receive multimedia content, wherein the multimedia content include video, audio, and captions, wherein the captions identify a textual representation of the audio, and wherein the multimedia content relates to dialog by a first speaker and a second speaker; perform image processing on the video to identify an age group of the first speaker and a gender of the first speaker, wherein the second speaker is not associated with at least one of the age group or the gender; determine, based on the image processing, a first portion of the video presenting a first portion of the dialog by the first speaker and a second portion of the video presenting a second portion of the dialog by the second speaker, wherein a first portion of the captions is associated with the first portion of the dialog and a second portion of the captions is associated with the second portion of the dialog; identify a first portion of the audio associated with the first portion of the video, and a second portion of the audio associated with the second portion of the video; filter the multimedia content to extract the first portion of the audio and the first portion of the captions and to remove the second portion of the audio and the second portion of the captions; and train an adaptive speech recognition system (ASR) with respect to the age group of the first speaker and the gender of the first speaker, wherein the processor, when training the ASR with respect to the age group of the first speaker and the gender of the first speaker, is further configured to: use the untrained ASR to perform a speech-to-text conversion of the first portion of the audio; calculate an error value based on comparing the first portion of the captions and results from the speech-to-text conversion using the untrained ASR; and use the first portion of the audio and the first portion of the captions to train the ASR when the error value is between a first threshold and a second threshold that is greater than the first threshold, wherein the first portion of the audio and the first portion of the captions are not used to train the ASR with respect to the age group and the gender of the first speaker when the error value is below the first threshold or greater than the second threshold.
1. An apparatus, comprising: a memory configured to store instructions; and a processor configured to execute the instructions to: receive multimedia content, wherein the multimedia content include video, audio, and captions, wherein the captions identify a textual representation of the audio, and wherein the multimedia content relates to dialog by a first speaker and a second speaker; perform image processing on the video to identify an age group of the first speaker and a gender of the first speaker, wherein the second speaker is not associated with at least one of the age group or the gender; determine, based on the image processing, a first portion of the video presenting a first portion of the dialog by the first speaker and a second portion of the video presenting a second portion of the dialog by the second speaker, wherein a first portion of the captions is associated with the first portion of the dialog and a second portion of the captions is associated with the second portion of the dialog; identify a first portion of the audio associated with the first portion of the video, and a second portion of the audio associated with the second portion of the video; filter the multimedia content to extract the first portion of the audio and the first portion of the captions and to remove the second portion of the audio and the second portion of the captions; and train an adaptive speech recognition system (ASR) with respect to the age group of the first speaker and the gender of the first speaker, wherein the processor, when training the ASR with respect to the age group of the first speaker and the gender of the first speaker, is further configured to: use the untrained ASR to perform a speech-to-text conversion of the first portion of the audio; calculate an error value based on comparing the first portion of the captions and results from the speech-to-text conversion using the untrained ASR; and use the first portion of the audio and the first portion of the captions to train the ASR when the error value is between a first threshold and a second threshold that is greater than the first threshold, wherein the first portion of the audio and the first portion of the captions are not used to train the ASR with respect to the age group and the gender of the first speaker when the error value is below the first threshold or greater than the second threshold. 8. The apparatus of claim 1 , wherein the processor, when identifying the first portion of the audio and the first portion of the captions, is further configured to: determine a first confidence value associated with an alignment between a first part of the audio associated with the first speaker and a corresponding first part of the captions; determine a second confidence value associated with an alignment between a second part of the audio associated with the first speaker and a corresponding second part of the captions; and select, as the first portion of the audio to be used for training the ASR with respect to the age group and the gender of the first speaker, the first part of the audio or the second part of the audio based on a comparison of the first confidence value and the second confidence value.