From owner-freebsd-multimedia@FreeBSD.ORG Tue Jul 27 17:04:28 2010 Return-Path: Delivered-To: freebsd-multimedia@freebsd.org Received: from miki (localhost [IPv6:::1]) by hub.freebsd.org (Postfix) with SMTP id 746A9106566B; Tue, 27 Jul 2010 17:04:27 +0000 (UTC) (envelope-from ariff@FreeBSD.org) Date: Wed, 28 Jul 2010 01:04:05 +0800 From: Ariff Abdullah To: Hans Petter Selasky Message-Id: <20100728010405.0b85b13d.ariff@FreeBSD.org> In-Reply-To: <201007271804.23993.hselasky@c2i.net> References: <201007271804.23993.hselasky@c2i.net> Organization: FreeBSD X-Mailer: /usr/local/lib/ruby/1.8/net/smtp.rb Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="PGP-SHA1"; boundary="Signature=_Wed__28_Jul_2010_01_04_05_+0800_Sn2PUVlB0mL.axwk" Cc: freebsd-multimedia@freebsd.org Subject: Re: Audio phase inversion quirk? X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Jul 2010 17:04:28 -0000 --Signature=_Wed__28_Jul_2010_01_04_05_+0800_Sn2PUVlB0mL.axwk Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, 27 Jul 2010 18:04:23 +0200 Hans Petter Selasky wrote: > Hi, >=20 > I've discovered using my qecholo tool that many USB audio devices > have switched the polarity of the audio signal. I guess not so many > people are checking this, but I'm one of them :-) >=20 > There is currently a quirk for switching left and right channels. Is > there a sound stack quirk in FreeBSD for correcting the phase? This > is just a matter of negating the samples before passing along to > the application. >=20 How about make the driver advertise the opposite sign or endian as supported formats? -- Ariff Abdullah FreeBSD ... Recording in stereo is obviously too advanced and confusing for us idiot ***** users :P ........ ... Going with the standard and orthodox is the death of intellect .............. --Signature=_Wed__28_Jul_2010_01_04_05_+0800_Sn2PUVlB0mL.axwk Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (FreeBSD) iEYEARECAAYFAkxPEYUACgkQlr+deMUwTNqHHgCeN0kai53gKdTJeiFteKs5reGM bqwAoLVMUST8pq+EDa75jJtHXJMuC3cu =qJDB -----END PGP SIGNATURE----- --Signature=_Wed__28_Jul_2010_01_04_05_+0800_Sn2PUVlB0mL.axwk--