3 ms·
Most encoders apply a low pass filter to cut off frequencies above 16kHz. Some do it above 18kHz but most choose 16kHz as default setting. This is common in all
by earthnail 3y ago
Most encoders apply a low pass filter to cut off frequencies above 16kHz. Some do it above 18kHz but most choose 16kHz as default setting. This is common in all lossy codecs - mp3, aac etc.
- pizza234 3y agoIt depends on the bitrate. AFAIR, LAME applies at 16 KHz cutoff at 128 kbps, and 17 Khz at 160 kbps. I don't have data about the others, but AFAIK a similar approach should apply. I'm not able to hear above 16 Khz. I've tried only once an experiment with another person, and they were definitely able to discern the difference.