On 18.08.20 at 10:49 Carsten Bock wrote: > Hi, > > one of the big issues with AMR/AMR-WB and Asterisk is that usually devices > speaking AMR/AMR-WB do use quite a lot of comfort noise, which is not > supported by Asterisk as far as I know. Even if you use the patch from the > above link, you might end up with some distorted noise.
Well, during my tests I in fact noticed some more or less silent distortions which may be caused by comfort noise generated by the mobile(?) (it's only from mobile -> local phone - not vice versa). For me it sounds like a pretty silent steam engine. I tested with amr and amr-wb in conjunction with transcoding (as I'm having no local phone supporting amr. Transcoding was between g722 or g711). Therefore I can't say for sure if this distortion is a result of transcoding or not. I could here it with two different mobiles (iPhone and Huawei). After muting of the iPhone, the distortion mostly went away (no change with the Huawei mobile). Thanks Michael -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-dev mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev
