Golf swing analysis from pre-strike sound

A non-transitory computer readable medium, comprising instructions which, when implemented on a processor, cause the processor to perform operations comprising:

• identify, in a sound signal obtained from a microphone, an impact of a golf club with a golf ball during a swing of the golf club;
• determine a characteristic of the swing of the golf club based on a portion of the sound signal corresponding to sound sensed, at least in part, before the impact;
• and
• cause a user interface to display information related to the characteristic of the swing as determined by the processor.

A method, comprising:

• receiving, from a microphone, sound signal based on the sound sensed by the microphone;
• identifying, using one or more processors, in the sound signal obtained from a microphone, an impact of a golf club with a golf ball during a swing of the golf club;
• determining, using the one or more processors, a characteristic of the swing of the golf club based on a portion of the sound signal corresponding to sound sensed, at least in part, before the impact;
• and
• generating, using the one or more processors, a user interface to display information related to the characteristic of the swing as determined by the processor.