[techfreakazoid]

Did anyone catch the S4 keynote? A number of interesting specs, features on the AV front:
 
- 5" Super AMOLED 1080p, 441ppi screen
- Gorilla Glass 3
- can share tunes via NFC and playback in stereo or 5(6?) channels on 2, 5 S4s
- use of dual cameras (13MP rear, 2MP front) simultaneously for photos, video calls
- IR blaster for remote control
- 136.6 x 69.8 x 7.9mm (5.38 x 2.75 x 0.31")
- 130g (4.59 ounces)
- 2GB RAM, 16/32/64GB User memory + microSD slot (up to 64GB)
- 2,600 mAh removeable battery
- Availability end of April 2013
- No mention on pricing
 
Like the inclusion of temperature and humidity sensors along with the health push. Wonder if we'll see a Wolfson on all variants. Guess we'll have to wait for the teardowns. Would like to see tactile play, FF, RW buttons for blind control in a true portable source.

 

[tkteo]

The list of audio codecs supported:  MP3, AMR-NB/WB, AAC/AAC+/eAAC+, WMA, OGG, FLAC, AC-3, apt-X (and there is Bluetooth 4.0 as well).

 

[jRi0T68]

The DAC used and usb audio out are tbd but of high interest to me. Of course, I'm likely to get it anyway, because I prefer the superiority of Samsung phones.

 

[Rpg2]

Here is a tear down. It is in Chinese. Couldn't recognize any mention of a DAC.
 
http://mobile.it168.com/tu/1462254.shtml

 

[dole]

The AT&T version doesn't have Wolfson I hope the international version will.

Source: https://twitter.com/supercurio/status/312378336972242944

 

[alphabetagaga]

Quote:

The AT&T version doesn't have Wolfson I hope the international version will.

how realistic is that?

 

[b0ris84]

I wouldn't be surprised if the U.S. got f!@#$d on the S4. We did with the S3, and will continue to do so I think.

 

[jamato8]

Quote:

I wouldn't be surprised if the U.S. got f!@#$d on the S4. We did with the S3, and will continue to do so I think.

I have not used there phone. What is it that they did or didn't do for the US version?

 

[b0ris84]

Wolfson DAC was only on International versions. Also instead of Quad core processors we have dual-cores. Every provider had a different model, it's crazyness. I understand that the radio for the phone has to be in a different spectrum, but did they have to change appearance, DAC, and processor.
 

 

[robm321]

I'm worried its going to be $300 with contract, but on paper the specs look amazing

 

[robm321]

Dp

 

[robm321]

Tp

 

[techfreakazoid]

Deja vu. Qualcomm should buy out Wolfson and integrate their IP into the Snapdragon SoC. With the N. American S4s, it appears the Snapdragon 600 will handle the audio processing.
 
- 28nm Quad-core 1.9 GHz Krait 300 CPU
- Hexagon QDSP6 for ultra-low power audio playback and video enhancements
- Speed enhanced Adreno 320 GPU with support for advanced graphic and compute APIs, including OpenGL ES 3.0, DirectX, OpenCL, Renderscript Compute
- HD multichannel sound with DTS-HD and Dolby Digital Plus audio and FlexRender
 
Wonder if the Intl S4 will have the same WM1811 in the S3.

 

[Rpg2]

The international S4 (GT-i9500) will use a Wolfson DAC, WM5102. There is an issue though. The software converts everything to 48Khz instead of leaving it at 44.1Khz.
 
https://twitter.com/supercurio/status/315952191812820992
 
https://twitter.com/supercurio/status/315953474363858945

 

 

[visanj]

measurements from gsmarena and some comparison
 
 
 

Test	Frequency response	Noise level	Dynamic range	THD	IMD + Noise	Stereo crosstalk
Samsung Galaxy S4 (headphones attached)	+0.27, -0.15	-82.3	82.2	0.0053	0.029	-79.5
Samsung I9300 Galaxy S III (headphones attached)	+0.11, -0.04	-90.2	90.2	0.0092	0.09	-53.1
Sony Xperia S (headphones attached)	+0.44, -0.13	-88.4	88.6	0.264	0.338	-47.3
Apple iPhone 4S (headphones attached)	+0.05, -0.10	-91.3	91.3	0.0068	0.071	-66.7
HTC One (headphones attached)	+0.02, -0.32	-82.4	82.3	0.0045	0.057	-68.3
Samsung Galaxy S4 (headphones attached)	+0.27, -0.15	-82.3	82.2	0.0053	0.029	-79.5