Date: Sat, 2 Sep 2006 10:45:05 +0400 (MSD) From: Yuriy Tsibizov <Yuriy.Tsibizov@gfk.ru> To: "S.N.Grigoriev" <gregory@mdmspb.com> Cc: freebsd-multimedia@FreeBSD.org, Alexander Leidinger <Alexander@Leidinger.net> Subject: Re: High quality sound Message-ID: <20060902102020.O970@free.home.local> In-Reply-To: <20060901144051.9npzkltdr0kkggo0@webmail.leidinger.net> References: <20060901115216.93B4543D4C@mx1.FreeBSD.org> <20060901144051.9npzkltdr0kkggo0@webmail.leidinger.net>
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> Quoting "S.N.Grigoriev" <gregory@mdmspb.com> (from Fri, 1 Sep 2006 15:52:13 > +0400): > >> I would like to know if there is a hardware/software combination >> allowing FreeBSD(amd64) to be a CD player with sound quality >> comparable with HiFi standalone CD players. > > If you talk about off-the-shelf products in the super market: yes, just > connect the analog audio out of the CD-ROM to your soundcard/soundchip > (typically the necessary cable comes with the CD-ROM) and use any decent > multimedia player (most of them are able to play CDs). - Some (most?) consumer sound cards will do 44100 -> 48000 upsampling, distorting sound. - I can't say anything about quality of DACs on low-cost sound cards. > > If you talk about really high quality stuff (which you don't get at every > corner on the street), I don't think so. But you can play with digital > extraction of the audio data from the CD and feeding it to an external DAC > via the SPDIF interface of the soundcard. You should also check that sound card does not do resampling for sound streams from 44100Hz to 48000Hz (most common value). All emu10k-based sound cards DO resample ALL DSP inputs to 48kHz, even if you only need to send S/PDIF stream from CD S/PDIF to optical or coaxial S/PDIF output (I'm not shure are there any workarounds for this). envy24-based cards (from ESI, like Maya44 mkII or Juli@) may work 44100Hz streams without resampling to 48kHz, but I don't know are they supported in FreeBSD. They come for a rasonable price around $150, stereo input/output (balanced/unblanced line-level & S/PDIF, depends on card) only. And, of course, thare are "top" sound cards like Lynx Two, that will cost arounf $1500. Not supported on FreeBSD, as I know. For this card you will prefer to buy Mac or Windows :-( Yuriy
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