best codecs for phones

[Chris Borjis]

if you want the broadest compatibility for all of those devices
mentioned (and I have tested this) you should be doing h.264 video codec, aac audio codec
with profile 4.1 (profile setting should be in your encoder configuration)

[Victor Camacho guerrero]

Thanks Chris,

are you recommending h264 for feature phones as well??

Thanks

[Victor Camacho guerrero]

Sorry Chris,

I forgot to ask which containers are you using.

thanks!

[Chris Borjis]

h.264 for everything.

.mp4 extension

video profile 4.1 should cover all of those.

[Victor Camacho guerrero]

Hi Chris,

thanks a lot.

I got a situation where we set up as well campaigns for Africa features phones, that actually are quite old. My company has been working using 3GP in the past. Do you think Mp4 with h264 will work for them too??

By the way , for Desktop and Iphone do you use the same bitrate??

I could not find the option Video Profile 4.1. Where do you find that?? which application do you use to export like that? Premiere?

Many thanks

[Chris Borjis]

you might need the .3gp for those older dumb phones.

ya same bitrate for desktop and smart phones.

I go as low as possible to make it load faster, without sacrificing
picture quality it’s usually 768kbps for video (sometimes a bit more)
and 128 kbps for audio.

I use adobe media encoder, it has the ability to choose the h.264
encoding profile.

[Victor Camacho guerrero]

that is awesome Chris,

is exactly what I wanted to know.

Thanks a lot for your help.

cheers

[Tracy Cao]

mp4, I use this.

[Victor Camacho guerrero]

Chris,

I have another question quite related.

For the new iphones which resolution do you export?

they say 1280×720 .

Therefore I exported for 1280×70 for HD iphone 4 with mp4 and h264 level 4.1 bitrate 700kb

and i exported 480×320 for HD iphone 3 and below with mp4 and h264 level 4.1 bitrate 700kb

Frankly speaking i dont see any diference at all in the quality of the videos.

In iphone 3 actually these clips didnt work.

any idea???

many thanks

[Chris Borjis]

stick with one resolution.

choose the one that works on the smallest/oldest phone.

profile 4.1 should be working on that older iphone.

make sure file extension is .mp4

try .m4v if that doesn’t work.