Comments on: What does HD Voice sound like on a mobile VoIP call?

By: Kevin C. Tofel

Kevin C. Tofel — Thu, 26 Jan 2012 15:57:24 +0000

Bria works on all Android devices over Android 2.1, so shouldn’t be a problem for the Samsung Galaxy 4G.

By: Comcierge Group, LLC

Comcierge Group, LLC — Thu, 26 Jan 2012 15:11:43 +0000

I certainly understand why T-Mobile is much better when it comes to voice quality. I am sure glad that merger did not happen .. can you use the Bria Client with the Samsung galaxy4G?

By: Comcierge Group, LLC

Comcierge Group, LLC — Thu, 26 Jan 2012 15:08:15 +0000

The article certainly defines why T-Mobile is much better than ATT Voice Quality. I use a SAMSUNG Galaxy 4G and love that droid.

By: Comcierge

Comcierge — Thu, 26 Jan 2012 15:03:43 +0000

I use a SAMSUNG 4G Galaxy and I have never been happier with the voice quality .. I am sure great that merger with ATT didn’t happen . I know for sure I would have crappy service.

By: Todd Carothers

Todd Carothers — Thu, 26 Jan 2012 13:56:29 +0000

Keep in mind the calls traversed the PSTN which means the sound quality downgrades to narrowband quality (although you could still hear a slight difference between cellular to cellular and cellular to HD). If you call SIP to SIP using G.722 or SILK HD the quality is fantastic – full range with little background noise.

By: Jim Courtney

Jim Courtney — Thu, 26 Jan 2012 11:30:14 +0000

Skype for iPhone has supported SILK (effectively HD voice) since its launch over 3G in May 2010. And it’s included with Skype for Android.

Recording from the May 2010 launch: http://voiceontheweb.biz/mobile-root/mobile-applications-mobile-root/skype-for-iphone-2-0-the-end-user-experience/

By: Sam

Sam — Thu, 26 Jan 2012 06:30:15 +0000

None of those calls are actually in HD Voice because, to make a HD call on a mobile, not only does the provider need to have enabled it on their network but the mobile phone also needs to support the AMR-WB codec (your Galaxy Nexus does support it, i believe, but very few other phones currently have support and none of the networks in the US support AMR-WB).

Even then you wouldn’t get a HD call because, AFAIK, none of the mobile networks currently supporting HD Voice support it across networks.

The only way to get HD Voice at the moment is on two mobiles that support AMR-WB on the same, HD enabled, network or by using VoIP end-to-end.

The two calls that included a SIP endpoint did sound slightly better, but i suspect that’s because the SIP end of the call was encoded in G.711 and so had to be transcoded fewer times (mobile to mobile would be GSM to G.711 to GSM, whereas SIP would be G.711 to GSM).

To truly hear a HD call point your SIP client to wbdemo@conf.zipdx.com while using the G.722 codec. The difference is really astounding and is set to get even more pronounced once the IETF’s new Opus codec starts to appear on devices.

By: p3ngwin

p3ngwin — Thu, 26 Jan 2012 06:18:36 +0000

in the youtube video with the Telstra engineer, when he mentions that some people say “that doesn’t sound like me”, i would add that when you speak, you hear yourself through bone conduction and resonance too. your voice frequencies literally passing through your body from vocal chords to ears. not just the vibrating air from your mouth and later going into your ear from outside.

this means that you speak you can hear, and feel, your lower frequencies through your own body, while the listener elsewhere completely misses out on those.

By: Dror

Dror — Thu, 26 Jan 2012 00:29:14 +0000

I’ve been thinking about this. Do we still need voice on smart phones our can we migrate to using voip over a data plan? A few questions.
* How reliable is the voip compared to using regular voice. Does it work well when you’re in the car, different areas, etc?
* Can you start a call on wifi while at home and have it move over to 3G when you move out of range?

T-Mobile has a pre-paid $30/month with 5Gig 4G and “unlimited” 3G. I’m tempted to use it, bring my own phone, and no more carrier dictating what device I use, what I put on it, etc.

By: Kevin C. Tofel

Kevin C. Tofel — Wed, 25 Jan 2012 23:20:38 +0000

True, this isn’t the best way to demo the sound quality. I should note that Bria can use the same SILK codec that was created by and used for Skype. For optimal results both callers would need to be using VoIP for the reason mentioned in the post.