Audio alignment systems and techniques

A method, the method comprising:

• after receiving first user input, (i) initiating playback of selected audio content at one or more playback components and (ii) initiating audio recording at one or more recording components to obtain recorded audio content, the recorded audio content being recorded at least partially during the playback of the selected audio content;
• processing the selected audio content and the recorded audio content to generate a temporal offset value by correlating feature frames of the selected audio content with feature frames of the recorded audio content, wherein generating the temporal offset value comprises:
• extracting first feature frames from the selected audio content;
• extracting second feature frames from the recorded audio content;
• identifying one or more first sets of feature frames from the first feature frames;
• identifying one or more second sets of feature frames from the second feature frames;
• determining one or more similarity measures for a plurality of pairs of sets of feature frames, wherein each pair of sets of feature frames comprises a first set of feature frames from the one or more first sets of feature frames and a second set of feature frames from the one or more second sets of feature frames;
• for each of the plurality of pairs of sets of feature frames, identifying a respective frame disparity;
• and
• using an aggregate measure of a plurality of the respective frame disparities to define the temporal offset value;
• and
• after receiving second user input, initiating synchronized playback of the selected audio content and the recorded audio content, wherein the recorded audio content is synchronized with the selected audio content using the temporal offset value.

One or more computer-readable recording media that store instructions that are executable by one or more processors of a system to configure the system to:

• after receiving first user input, (i) initiate playback of selected audio content at one or more playback components and (ii) initiate audio recording at one or more recording components to obtain recorded audio content, the recorded audio content being recorded at least partially during the playback of the selected audio content;
• process the selected audio content and the recorded audio content to generate a temporal offset value by correlating feature frames of the selected audio content with feature frames of the recorded audio content, wherein generating the temporal offset value comprises:
• extracting first feature frames from the selected audio content;
• extracting second feature frames from the recorded audio content;
• identifying one or more first sets of feature frames from the first feature frames;
• identifying one or more second sets of feature frames from the second feature frames;
• determining one or more similarity measures for a plurality of pairs of sets of feature frames, wherein each pair of sets of feature frames comprises a first set of feature frames from the one or more first sets of feature frames and a second set of feature frames from the one or more second sets of feature frames;
• for each of the plurality of pairs of sets of feature frames, identifying a respective frame disparity;
• and
• using an aggregate measure of a plurality of the respective frame disparities to define the temporal offset value;
• and
• after receiving second user input, initiate synchronized playback of the selected audio content and the recorded audio content, wherein the recorded audio content is synchronized with the selected audio content using the temporal offset value.