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发表于 2014-3-16 20:48 · 上海
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本帖最后由 mib008 于 2014-3-16 20:58 编辑
wonge 发表于 2014-3-15 19:53
最近升级了系统,没办法放这个文件了
就贴一个图吧,有兴趣到PT站区下来播放,看看播放器的CPU占用
这 ...
64bit的位宽...我可以怀疑这个是软件插值转出来的么?
如果不是,请提供正规渠道发行媒体的信息。
Standard sampling resolutions and rates
Common sample resolutions for LPCM are 8, 16, 20 or 24 bits per sample.[1][2][3][21]
LPCM encodes a single sound channel. Support for multichannel audio depends on file format and relies on interweaving or synchronization of LPCM streams.[5][22] While two channels (stereo) is the most common format, some can support up to 8 audio channels (7.1 surround).[2][3]
Common sampling frequencies are 48 kHz as used with DVD format videos, or 44.1 kHz as used in Compact discs. Sampling frequencies of 96 kHz or 192 kHz can be used on some newer equipment, with the higher value equating to 6.144 megabit per second for two channels at 16-bit per sample value, but the benefits have been debated.[23] The bitrate limit for LPCM audio on DVD-Video is also 6.144 Mbit/s, allowing 8 channels (7.1 surround) × 48 kHz × 16-bit per sample = 6,144 kbit/s.
这是国标规格。 |
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