Date: Sat, 26 Nov 2005 04:32:44 +0900 (JST) From: Kazuhito HONDA <kazuhito@ph.noda.tus.ac.jp> To: zazubrik@mail.ru Cc: freebsd-multimedia@freebsd.org Subject: Re: uaudio question Message-ID: <20051126.043244.343190160.kazuhito@ph.noda.tus.ac.jp> In-Reply-To: <A21EFF4E-FCCD-405D-B4A2-AFF68DF92527@mail.ru> References: <5F806055-9A04-4A91-9FA5-F41C4F7B9C91@mail.ru> <20051125.141025.945472619.kazuhito@ph.noda.tus.ac.jp> <A21EFF4E-FCCD-405D-B4A2-AFF68DF92527@mail.ru>
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From: Artem Ignatiev <zazubrik@mail.ru>
Subject: Re: uaudio question
Date: Fri, 25 Nov 2005 17:53:23 +0300
> Dunno. ;-)
> just doing
> while(1) { read(dev_dsp_fd, buf, BUFSZ); write(dev_dsp_fd, buf,
> BUFSZ); }
> gives 2 (sometimes 3, depends on BUFSZ, I've used values 4000, 8000,
> 16000) second lag, than it begins to plays sounds that were recorded
> 2 secs (or 3) ago.
I see. But I don't know what cause your problem.
I haven't found any codes which may cause it in uaudio*.[hc].
However, I can't say any explicit demonstration.
It might comes from low-level USB system of FreeBSD, perhaps.
I made a mistake that full-duplex didn't work.
But it eased me that it worked even though it had the problem.
Sincerely yours,
Kazuhito HONDA
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