Sample rates higher than 48 kHz allow freedom to tailor the audio response above 20 kHz in order to optimize the transient performance. A recording and reproduction chain may have pre- and postringing caused by brickwall band-limiting filters, but a single "apodizing" filter can substantially suppress the ringing and shorten the impulse response. The apodizing filter can be placed anywhere in the chain, but the mastering stage probably fits in best with current practice. The paper presents coefficients for a number of filters suitable for 96-kHz and 192- kHz sampled audio, and experimentation is encouraged. Some of the filters are symmetrical, but, taking into account the ear's sensitivity to preresponses, others have been optimized for a near-zero preresponse.
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can
subscribe to this RSS feed.
Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.
