How do I know if a sound recording sounds clear or not(if what is being said can be understood)? I understand my sound recordings, but other people can't, they say i have bad recording quality since they can't understand what is being said. Is there any way to measure the clearness of a sound recording?
In telecommunication networks one of the commonly used methods is Full Reference. This method uses an algorithm to evaluate speech samples by simulating the process of the human ear listening to reference audio files.
Next, they compare the samples to determine the audible difference. The data then undergoes a process, called the cognitive model, comparable to the way the human brain would process such data. A picture of overall voice quality is generated.
A more straightforward approach to speech quality testing is conducting listening sessions, resulting in subjective quality results.
A group of people listens to recordings under controlled settings. They’re then asked to provide normalized feedback (e.g. on a scale from 1 to 5). Responses are then aggregated into a single quality value, called Mean Opinion Score (MOS). Aggregation is necessary to avoid subject bias.