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<blockquote data-quote="knutinh" data-source="post: 108500" data-attributes="member: 14776">I do believe that bit-perfect audio is possible with DirectSound as well if you:1. Do not playback different streams of different rates at the same time (in that case, depending on your card, either kmixer or the soundcard hardware will resample every stream to 48kHz, then do mixing, then do D/A conversion).2. Select &quot;24bit&quot; as the signal path, as evidently Microsoft is doing a slight alteration to the audio in order to do efficient processing on intel x86. For &quot;non-audio&quot; streams this is not a problem, but for audio streams there will be a measurable (but possibily not perceptible) change. Problem is, dts-audio on eg CD is usually flagged as regular audio, meaning that the windows framework is fooled.I think it is great that ASIO is included in MP, but I think that the audible effects of bit-perfect playback is exaggerrated (except for dts), and the methods commonly used for obtaining bit-perfction may be over-kill.regardsknut</blockquote>

[QUOTE="knutinh, post: 108500, member: 14776"] I do believe that bit-perfect audio is possible with DirectSound as well if you: 1. Do not playback different streams of different rates at the same time (in that case, depending on your card, either kmixer or the soundcard hardware will resample every stream to 48kHz, then do mixing, then do D/A conversion). 2. Select "24bit" as the signal path, as evidently Microsoft is doing a slight alteration to the audio in order to do efficient processing on intel x86. For "non-audio" streams this is not a problem, but for audio streams there will be a measurable (but possibily not perceptible) change. Problem is, dts-audio on eg CD is usually flagged as regular audio, meaning that the windows framework is fooled. I think it is great that ASIO is included in MP, but I think that the audible effects of bit-perfect playback is exaggerrated (except for dts), and the methods commonly used for obtaining bit-perfction may be over-kill. regards knut [/QUOTE]

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