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Date:      Mon, 29 Mar 2021 11:02:01 +0200
From:      Hans Petter Selasky <hps@selasky.org>
To:        Softwafe Engineer <timsofteng@gmail.com>
Cc:        freebsd-multimedia@freebsd.org
Subject:   Re: Distorted sound with external usb-device and bitperfect
Message-ID:  <b5803449-e385-aabd-70a3-3f087f40265c@selasky.org>
In-Reply-To: <CAP7bFfAVVO=m2=YiqL5Kc_9pEpBCnnHEGVhhHer589THdWnLSw@mail.gmail.com>
References:  <CAP7bFfBhoHQXV%2BzpW3Sm%2BLcJh77U=KBoZzhJ6oxCxBABx3UPwQ@mail.gmail.com> <d7d15f35-f363-44df-bf05-c2253a5307d1@selasky.org> <CAP7bFfCRBnJh5k0fe8r9AnhzTh8FBO6_r=iu9D9qrwo-PTxD6A@mail.gmail.com> <4938264f-686a-af1a-cb28-f39585b1375a@selasky.org> <CAP7bFfBAVF1NuVhXLrDMkHGnMZA=tn7taN4cxQGkwO4ogKHkCg@mail.gmail.com> <c2b50b48-f842-2509-2075-dd9d3c6e3d79@selasky.org> <CAP7bFfAQw2uJ%2Bkn7xC=Yis6iFrnh7qn%2BdbbULqARDRO-p5=bag@mail.gmail.com> <69e199f6-a3ac-db3b-c7a1-00001f750624@selasky.org> <CAP7bFfAVVO=m2=YiqL5Kc_9pEpBCnnHEGVhhHer589THdWnLSw@mail.gmail.com>

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On 3/29/21 10:55 AM, Softwafe Engineer wrote:
> What about uadriver? Maybe Motu support more formats but something wrong
> with driver. Would it be true?
>   I've send question about it to Motu support.

Hi,

Usually USB audio devices only support one audio format, that is quite 
common. But the USB specification allows for more formats at the same 
time. I think you have a good device, but likely it doesn't do 32-bits. 
I haven't heard of any DAC's capable of 32-bits yet :-)

--HPS



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