From: Clemens Ladisch <clemens@ladisch.de>
To: rmfc <rmfc@l2f.inesc-id.pt>
Cc: alsa-devel@alsa-project.org
Subject: Re: AndreaElectronics PureAudio USB-SA
Date: Fri, 25 Jun 2010 10:25:00 +0200 [thread overview]
Message-ID: <4C2467DC.9020302@ladisch.de> (raw)
In-Reply-To: <4C23E611.9040309@l2f.inesc-id.pt>
rmfc wrote:
> I'm trying to use any USB sound card with some DSP processing that
> allows a microphone array to capture audio and use in speech recognition
> (mostly applied in noisy environments). The best device that I found so
> far is AndreaElectronics PureAudio USB-SA but unfortunately it isn't
> properly supported in Linux/Alsa. The device is recognized as an USB
> Audio device (snd_usb_audio) and I can record audio in Audacity. The
> problem is that none of DSP features is explicitly activated in USB
> configuration so it works almost like any other microphone.
> I then tried Asus Xonar U1 but the problem is the same, no configuration
> is done in such devices, so they record audio without enough quality to
> be used by a speech recognizer (not enough energy, audio DC components
> when software gain is applied in Sound Preferences...).
Neither of these device has a DSP; any processing is done in software
in the Windows driver.
Regards,
Clemens
next prev parent reply other threads:[~2010-06-25 8:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-24 23:11 AndreaElectronics PureAudio USB-SA rmfc
2010-06-25 8:25 ` Clemens Ladisch [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-06-23 16:40 rmfc
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