Displaying 4 results from an estimated 4 matches for "hscsd".
Did you mean:
hcsd
2007 May 04
1
AMR vs Speex on wireless networks.
...f after error correction the packet CRC is
still wrong then i pass NULL to the decoder, otherwise i pass
the corrected packet. This becouse Speex doesn't have error
correction inside, then i would provide a custom turbo code
externally.
My target wireless networks are 802.11, UMTS/HSDPA and
CSD/HSCSD.
I would like to know which in my case would be the correct codec
choice for the various networks, AMR or Speex?
I'll use a custom jitter or the speex one if it fits good to my purposes.
I need a fixed point implementation for it, AMR has it too.
Thanks.
___________________________...
2007 May 05
0
AMR vs Speex on wireless networks.
NB for CSD/HSCSD and WB for UMTS/HSDPA.
The UMTS/HSDPA services already provides an
excellent turbo code correction.
For what i know i can tell you more about corrupted packets.
The BER ranges from 10^-5 to 10^-2 for CSD/HSCDS
in transparent mode, and from 10^-9 to 10^-6 for
UMTS/HSDPA.
It depends on signal quality...
2007 May 05
0
AMR vs Speex on wireless networks.
...e speex on it
do you agree?
----- Messaggio originale -----
Da: marzullo maio <marzullo63@yahoo.it>
A: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca>
Cc: speex-dev@xiph.org
Inviato: Sabato 5 maggio 2007, 23:06:40
Oggetto: Re: [Speex-dev] AMR vs Speex on wireless networks.
NB for CSD/HSCSD and WB for UMTS/HSDPA.
The UMTS/HSDPA services already provides an
excellent turbo code correction.
For what i know i can tell you more about corrupted packets.
The BER ranges from 10^-5 to 10^-2 for CSD/HSCDS
in transparent mode, and from 10^-9 to 10^-6 for
UMTS/HSDPA.
It depends on signal quality...
2009 Jun 02
0
Brand new Unlocked Apple iPhone 3G For sale at Just $280usd
...e
- Ambient light sensor
Sound Alert types Vibration; Downloadable polyphonic, MP3 ringtones
Speakerphone Yes
- 3.5 mm headset jack
Memory Phonebook Practically unlimited entries and fields, Photocall
Call records 100 received, dialed and missed calls
Internal 8 GB/ 16 GB
Card slot No
Data GPRS Yes
HSCSD No
EDGE Yes
3G HSDPA
WLAN Wi-Fi 802.11b/g
Bluetooth Yes, v2.0, headset support only
Infrared port No
USB Yes, v2.0
Camera Primary 2 MP, 1600x1200 pixels
Video No
Secondary No
Features OS Mac OS X v10.4.10
CPU 32-bit Samsung S5L8900 620 MHz processor
Messaging SMS (threaded view), Email
Browser HTML...