Return-Path: MIME-Version: 1.0 In-Reply-To: References: From: Juha Kuikka Date: Wed, 8 Mar 2017 16:48:08 -0800 Message-ID: Subject: Re: mSBC codec issue on a headset To: =?UTF-8?B?RnLDqWTDqXJpYyBEYWxsZWF1?= Cc: linux-bluetooth Content-Type: text/plain; charset=UTF-8 Sender: linux-bluetooth-owner@vger.kernel.org List-ID: On Wed, Mar 8, 2017 at 11:21 AM, Fr=C3=A9d=C3=A9ric Dalleau wrote: > Hi Juha, > >> My problem is that the Jabra headset starts adding noise to the audio >> output after a period, while the LG headset works a-ok for prolonged >> periods of time. >> >> My test is about 13s long wave file that is being looped. On Jabra the >> noise always starts at about 25s (could be right at the edge of the >> loop, hard to tell) and never goes away. > > > Some kind of description of the noise you hear could help. Certainly. I have been trying to record them off the headset but it is proving to be surprisingly difficult. Best way to describe it is as "sizzling", like fat in a pan. > If it looks like (hear like) small gaps are inserted between packets, thi= s > could indicates timing issues ? If it hear like the audio data are wrong, > this could indicate codec issues. I am trying to ascertain which one it is. I certainly have timing issues also, they come across as clearer clicks and pops, as I would expect, the sizzle is constant. The clicks and pops I can also hear on the LG headset. I will try to record it, just seeing the signal should give a good idea whether they are frame gaps or something else. Thanks for your comments! - Juha