Date: Fri, 20 Oct 2017 18:22:04 +0200 From: Hans Petter Selasky <hps@selasky.org> To: Michael Reifenberger <mike@reifenberger.com>, hps@freebsd.org Cc: freebsd-multimedia@freebsd.org Subject: Re: Advice for audio recording Message-ID: <fd0af04c-b27a-4ab6-45b4-9975fdba400e@selasky.org> In-Reply-To: <20171020173704.Horde.jj_YkUyt6oyqr6Lqy0qwVD-@mail.eeeit.de> References: <20171020173704.Horde.jj_YkUyt6oyqr6Lqy0qwVD-@mail.eeeit.de>
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On 10/20/17 17:37, Michael Reifenberger wrote: > > (Hmm, why dev.pcm.4.rec.vchanformat: s16le:2.0 , shouldn't it be > s24le:2.0?) Hi, You should override this into s24le:2.0 - yes. Further you should set bitperfect to avoid resampling issues and the software volume control. The DSP device will then refuse to open in any other ways than what is printed in dmesg, with regards to sampling rate and sample size and channels. In 11- and 12- you can simply put dev.pcm.4.rec.vchanformat=xxx in the kernel environment (man kenv) or in /boot/loader.conf (requires reboot) and these settings will be programmed automatically for pcm #4 every time you plug this device. At home I'm using: http://www.music-group.com/Categories/Behringer/Mixers/Digital-Mixers/X32-RACK/p/P0AWN Which I'm very happy with. It works well with FreeBSD and is controlled via a wireless pad (iOS or Android at your choice). --HPS
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