Group Delay in Audio
Group delay has some importance in the audio field and especially in the sound reproduction field. Many components of an audio reproduction chain, notably loudspeakers and multiway loudspeaker crossover networks, introduce group delay in the audio signal. It is therefore important to know the threshold of audibility of group delay with respect to frequency, especially if the audio chain is supposed to provide high fidelity reproduction. The best thresholds of audibility table has been provided by Blauert & Laws (1978).
| Frequency | Threshold |
|---|---|
| 500 Hz | 3.2 ms |
| 1 kHz | 2 ms |
| 2 kHz | 1 ms |
| 4 kHz | 1.5 ms |
| 8 kHz | 2 ms |
Read more about this topic: Group Delay And Phase Delay
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