On 17 July 2017 at 14:05, Jim web <[email protected]> wrote: > The main problem with 48k -> 44.1k resampling is that it will risk adding > artifacts. If you're wanting to save bits it would make more sense to tell > a lossy encoder to simply ignore anything above a given HF limit. (Various > BBC outlets used to do this some years ago.) The result can then remain 48k > rate but have the allocated bits used for more detail at lower frequencies.
There are also CODEC internals to consider. The LAME people used to recommend resampling down to 44.1kHz before encoding, because that was the sample rate they had done most of their tuning against. For playback, 48kHz files are relatively rare outside video, and receive less testing. My old Sony Ericsson phone, for example, would play back 48kHz AAC with periodic digital splats. Dave _______________________________________________ get_iplayer mailing list [email protected] http://lists.infradead.org/mailman/listinfo/get_iplayer
