Return-Path: Message-ID: <4460B46B.6060203@xmission.com> From: Brad Midgley MIME-Version: 1.0 To: bluez-devel@lists.sourceforge.net Subject: Re: [Bluez-devel] Motorola HT820 audio fidelity References: <1146183877.13358.7.camel@pc7.dolda2000.com> <445189C8.6060602@xmission.com> <1146492165.13358.16.camel@pc7.dolda2000.com> <44561FB6.5000306@xmission.com> <1146567726.13358.40.camel@pc7.dolda2000.com> <445789D6.7030408@xmission.com> <1146709233.13358.73.camel@pc7.dolda2000.com> <445991B0.9030208@xmission.com> <1147144809.25965.51.camel@pc7.dolda2000.com> In-Reply-To: <1147144809.25965.51.camel@pc7.dolda2000.com> Content-Type: text/plain; charset=ISO-8859-1 Sender: bluez-devel-admin@lists.sourceforge.net Errors-To: bluez-devel-admin@lists.sourceforge.net Reply-To: bluez-devel@lists.sourceforge.net List-Unsubscribe: , List-Id: BlueZ development List-Post: List-Help: List-Subscribe: , List-Archive: Date: Tue, 09 May 2006 09:25:31 -0600 Fredrik > Except the bitpool value, doesn't that mean that it's already using the > best possible values? Or do lower values of sbc.subbands or sbc.blocks > increase quality? iirc, changing subbands to 4 will increase the traffic and it looks computationally simpler. try it out with your problematic audio. also it isn't clear what allocation method does in terms of quality. this is interesting at http://www.otolith.com/otolith/olt/sbc.html "Most SBC encoders use a structure like this. First, a time-frequency mapping (a filter bank, or FFT, or something else) decomposes the input signal into subbands. The psychoacoustic model looks at these subbands as well as the original signal, and determines masking thresholds using psychoacoustic information." We are just trying to follow the spec for our codec, so anything optional like analyzing the psychoacoustic model might as well be rocket science. brad ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel