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关于cubase等宿主软件导入mp3格式的疑问,大师们进

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1660
#1 13-3-7 16:55

关于cubase等宿主软件导入mp3格式的疑问,大师们进

<p>很偏门的一个问题,也是同事问到,所以前来讨论,大师们多发表些言论,旨在学习和进步</p><p>&nbsp;</p><p>在cubase里导入一段44.1khz,16bit的mp3,</p><p>,为什么会显示是32bit?</p><p><font size="3" face="宋体">

</font></p><p style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan;" class="MsoNormal" align="left"><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">接着将这段的音频,导进<span lang="EN-US">forage</span>,<span lang="EN-US">adobe audition</span>,<span lang="EN-US">mp3</span>分析软件,除最后外,前两者都显示是<span lang="EN-US">16bit<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></span></p><p><font size="3" face="宋体">

</font></p><p></p><p></p><p><font size="3" face="宋体"></font>&nbsp;</p><p style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan;" class="MsoNormal" align="left"><span style="color: rgb(0, 153, 51); font-family: 宋体; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-ansi-language: ZH-CN;"><?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600">
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</v:path></v:stroke></v:shapetype></span><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">导入进<span lang="EN-US">sonar</span>,</span></p><p style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan;" class="MsoNormal" align="left"><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;"><span lang="EN-US"><o:p></o:p></span></span></p><p><font size="3" face="宋体">

</font><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">音频显示是<span lang="EN-US">16bit<o:p></o:p></span></span></p><p><font size="3" face="宋体">

</font><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;"></span></p><p><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">再次在<span lang="EN-US">cubase</span>测试,发现将任何<span lang="EN-US">mp3</span>(无论歌曲,唱片,游戏音乐)导入进来,都会显示是<span lang="EN-US">32bit</span></span></p><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;"><span lang="EN-US"><p><br></p></span><p></p></span><p><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">为什么<span lang="EN-US">cubase</span>导入任何<span lang="EN-US">mp3</span>都提示是<span lang="EN-US">32bit</span>的? <span lang="EN-US"><br style="mso-special-character: line-break;">
<br style="mso-special-character: line-break;">
</span></span><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;" lang="EN-US">1 shift+s </span><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">查询了软件设置的问题,在<span lang="EN-US">cubase</span>软件设置里面发现是<span lang="EN-US">16bit</span></span></p><p><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;"><span lang="EN-US"><o:p></o:p></span></span></p><p><font size="3" face="宋体">

</font></p><p style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan;" class="MsoNormal" align="left"><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;" lang="EN-US">2 </span><span style="color: rgb(51, 51, 51); font-family: 宋体; font-size: 12pt; mso-bidi-font-family: Arial; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;">进<span lang="EN-US">file
-- perfermance -- editing -- audio -- on import audio files -- open options
dialog </span>或是 设置<span lang="EN-US"> settings</span></span><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;" lang="EN-US"><o:p></o:p></span></p><p><font size="3" face="宋体">

</font><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;"></span></p><p><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">这里只显示<span lang="EN-US">32</span>至<span lang="EN-US">16bit,</span>很奇怪,本身音频是<span lang="EN-US">16bit</span>的<span lang="EN-US">mp3</span>,为什么还提示要<span lang="EN-US">32</span>转<span lang="EN-US">16</span>?<span lang="EN-US"><br style="mso-special-character: line-break;">
</span></span><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">只要导入<span lang="EN-US">MP3</span>好像都这样,这个<span lang="EN-US">32bit</span>究竟是指什么?<span lang="EN-US"><o:p></o:p></span></span></p><p><font size="3" face="宋体">

</font></p><p style="margin: 0cm 0cm 0pt;" class="MsoNormal"><span lang="EN-US"><o:p><font face="Calibri">&nbsp;</font></o:p></span><span style="font-family: 宋体; font-size: 12pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;" lang="EN-US">ps</span><span style="font-family: 宋体; font-size: 12pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;">:</span><span style="font-family: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;"><b style="mso-bidi-font-weight: normal;">cubase的内部</b></span><b style="mso-bidi-font-weight: normal;"><span style="font-family: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">音频处理精度为32bit,sonar貌似为64bit,adobe为32bit,这个与其内部精度是否有关系?</span></b></p><p style="margin: 0cm 0cm 0pt;" class="MsoNormal"><b style="mso-bidi-font-weight: normal;"><span style="font-family: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;"></span></b>&nbsp;</p><p><font size="3" face="宋体">

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[ 本帖最后由 舞指琴魔 于 13-3-7 16:57 编辑 ]

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1660
#2 13-3-7 17:05
<span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-family: 宋体; font-size: 12pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;">后来拿了同样的压缩音频段,在不同软件里,做了很多测试,得出些结论,欢迎一并讨论<span lang="EN-US"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></span>

<p style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan;" class="MsoNormal" align="left"><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;" lang="EN-US">1 sonar</span><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;">在导入任何精度(<span lang="EN-US">bit</span>)的<span lang="EN-US">wma</span>格式时,显示其精度被默认为<span lang="EN-US">16bit</span>,在<span lang="EN-US">cubase</span>里导入此<span lang="EN-US">wma</span>格式,也是如此<span lang="EN-US">------</span>此格式与宿主软件的匹配度有关系?<span lang="EN-US"><o:p></o:p></span></span></p>

<p style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;" class="MsoNormal" align="left"><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;" lang="EN-US">2 cubase</span><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;">在导入<span lang="EN-US">16bit</span>的<span lang="EN-US">mp3</span>时,显示其精度被默认为<span lang="EN-US">32bit</span>;同样的<span lang="EN-US">mp3</span>在<span lang="EN-US">sonar</span>导入时显示精度参数为<span lang="EN-US">16bit-------</span>判断与宿主软件有关系。<span lang="EN-US"><o:p></o:p></span></span></p>

<p style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan;" class="MsoNormal" align="left"><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;" lang="EN-US">3 sound forage</span><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;">里面,所有不同精度的<span lang="EN-US">wma</span>,<span lang="EN-US">mp3</span>导入时显示其精度均被默认为<span lang="EN-US">16bit</span>,证明样本在进入软件时均被自动处理,<span lang="EN-US">forage</span>的内部精度默许为<span lang="EN-US">16bit</span>?<span lang="EN-US"><o:p></o:p></span></span></p>

<p style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan;" class="MsoNormal" align="left"><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;" lang="EN-US">4 adobe audition</span><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;">,所有的<span lang="EN-US">wma</span>格式导入时均被默认为<span lang="EN-US">16bit</span>;所有不同精度的<span lang="EN-US">mp3</span>格式被导入时,其精度均被默认为<span lang="EN-US">16bit</span>。<span lang="EN-US"><o:p></o:p></span></span></p>

<p style="margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;" class="MsoNormal" align="left"><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;" lang="EN-US">5 </span><span style="font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-ascii-theme-font: minor-fareast; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-fareast;">以上压缩音频在导入各自软件时,其采样率均显示原样本的采样率,并无问题;所有结论仅针对压缩的<span lang="EN-US">mp3</span>,<span lang="EN-US">wma</span>两格式,对于无损<span lang="EN-US">wav</span>等格式无任何问题。<span lang="EN-US"><o:p></o:p></span></span></p>

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