2013-06-21

Cisco 1760 (Voice Bundle) inside.

Cisco 1760 (Voice Bundle)



VIC-4FXS/DID


VWIC-1MFT-T1, PVDM-12


PVDM-12

2013-02-27

Classical guitar Paco Castillo Model 201 inside

Model 201 specification:

TOP - SOLID CANADIAN RED CEDAR
BACK AND SIDES - SAPELE
NECK - AFRICAN MAHOGANY
FINGERBOARD - INDIAN ROSEWOOD
BINDING - EUROPEAN MAPLE ON TOP
FINISH - GLOSS


Paco Castillo site.












2013-01-24

Precise Puppy 5.4 with Inspiron mini 12

Puppy Linux Precise 5.4.3 @ Dell Inspiron 1210 (mini 12) notebook.
Video is  Intel GMA500 "Poulsbo" with LCD resolution of 1280x800.

X failed to start:


There is a part of /var/log/Xorg.0.log

...
[    84.803] (II) VESA: driver for VESA chipsets: vesa
[    84.803] (II) FBDEV: driver for framebuffer: fbdev
[    84.803] (--) using VT number 4

[    84.814] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    84.814] vesa: Ignoring device with a bound kernel driver
[    84.814] (WW) Falling back to old probe method for vesa
[    84.814] (II) Loading sub module "fbdevhw"
[    84.814] (II) LoadModule: "fbdevhw"
[    84.819] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[    84.836] (II) Module fbdevhw: vendor="X.Org Foundation"
[    84.836]  compiled for 1.11.3, module version = 0.0.2
[    84.836]  ABI class: X.Org Video Driver, version 11.0
[    84.836] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[    84.836] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[    84.871] (EE) open /dev/fb0: No such device
[    84.871] (WW) Falling back to old probe method for fbdev
[    84.871] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
[    84.871] (II) UnloadModule: "vesa"
[    84.871] (II) Unloading vesa
[    84.871] (II) UnloadModule: "fbdev"
[    84.871] (II) Unloading fbdev
[    84.871] (II) UnloadModule: "fbdevhw"
[    84.871] (II) Unloading fbdevhw
[    84.871] (EE) Screen(s) found, but none have a usable configuration.
[    84.872] 
Fatal server error:
[    84.872] no screens found
[    84.872] 
Please consult the The X.Org Foundation support 
  at http://wiki.x.org
 for help. 
[    84.872] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[    84.872] 
[    84.877]  ddxSigGiveUp: Closing log
[    84.877] Server terminated with error (1). Closing log file.



To get X started I have removed poulsbo modules...

# find / -name '*psb_gfx*' -o -name '*poulsbo*'
...
/lib/modules/3.2.29/kernel/drivers/staging/gma500/psb_gfx.ko
...
/lib/modules/3.2.29/kernel/drivers/gpu/stub/poulsbo.ko
...
# rm /lib/modules/3.2.29/kernel/drivers/staging/gma500/psb_gfx.ko
# rm /lib/modules/3.2.29/kernel/drivers/gpu/stub/poulsbo.ko

...and save back to USB flash drive while rebooting.


After that, Precise Puppy can run X Window System by vesa driver in this book.

2012-11-12

Samsung GALAXY Ace2 vs LG Optimus L7 audio test comparison

Samsung GALAXY Ace2 vs LG Optimus L7 RMAA audio test comparison.

There are a links to detail tests:


Frequency response


THD + Noise (at -3 dB FS)


Dynamic range


Intermodulation distortion


Noise level


IMD (swept tones)

LG Optimus L7 audio test

This is an audio RMAA test report of LG Optimus L7 (P705/P700).


LG Optimus L7


Testing chain: Optimus L7 (16-bit, 44.1 kHz WAV file playback) -> CORDA ARIETTA -> Creative Sound Blaster Digital Music Premium HD line-in (24-bit, 48 kHz).
Frequency response (from 40 Hz to 15 kHz), dB : -0.02, -1.68
Noise level, dB (A) : -85.9
Dynamic range, dB (A) : 87.3
THD, % : 0.021
THD + Noise, dB (A) : -67.2
IMD + Noise, % : 0.107
Stereo crosstalk, dB : -84.2
IMD at 10 kHz, % : 0.053

Testing chain: Optimus L7 with 16 Ohm load (16-bit, 44.1 kHz WAV file playback) -> CORDA ARIETTA -> Creative Sound Blaster Digital Music Premium HD line-in (24-bit, 48 kHz).
Frequency response (from 40 Hz to 15 kHz), dB : -0.07, -1.71
Noise level, dB (A) : -85.0
Dynamic range, dB (A) : 86.5
THD, % : 0.036
THD + Noise, dB (A) : -65.1
IMD + Noise, % : 0.114
Stereo crosstalk, dB : -55.8
IMD at 10 kHz, % : 0.085


*)
CORDA ARIETTA preamplifier with crossfeed filter turned off.


Frequency response


Noise level


Dynamic range


THD + Noise (at -3 dB FS)


Intermodulation distortion


IMD (swept tones)

Panasonic SL-MP75 portable CD/MP3 player audio test

This is an audio RMAA test report of Panasonic SL-MP75 portable CD/MP3 player.


SL-MP75


This first table presents a results of test of player feeded by wall AC 220V to DC 5V converter.

Testing chain: SL-MP75 (16-bit, 44.1 kHz WAV file playback) -> CORDA ARIETTA -> Creative Sound Blaster Digital Music Premium HD line-in (24-bit, 48 kHz).
Frequency response (from 40 Hz to 15 kHz), dB : +0.43, -0.13
Noise level, dB (A) : -82.3
Dynamic range, dB (A) : 82.5
THD, % : 0.015
THD + Noise, dB (A) : -73.7
IMD + Noise, % : 0.069
Stereo crosstalk, dB : -84.1
IMD at 10 kHz, % : 0.045


Next two tables presents a results of tests of player feeded by batteries.

Testing chain: SL-MP75 (16-bit, 44.1 kHz WAV file playback) -> CORDA ARIETTA -> Creative Sound Blaster Digital Music Premium HD line-in (24-bit, 48 kHz).
Frequency response (from 40 Hz to 15 kHz), dB : +0.49, -0.13
Noise level, dB (A) : -87.1
Dynamic range, dB (A) : 87.1
THD, % : 0.011
THD + Noise, dB (A) : -75.2
IMD + Noise, % : 0.047
Stereo crosstalk, dB : -86.9
IMD at 10 kHz, % : 0.032

Testing chain: SL-MP75 with 16 Ohm load (16-bit, 44.1 kHz WAV file playback) -> CORDA ARIETTA -> Creative Sound Blaster Digital Music Premium HD line-in (24-bit, 48 kHz).
Frequency response (from 40 Hz to 15 kHz), dB : +0.03, -1.55
Noise level, dB (A) : -89.5
Dynamic range, dB (A) : 89.4
THD, % : 0.433
THD + Noise, dB (A) : -45.0
IMD + Noise, % : 1.943
Stereo crosstalk, dB : -78.9
IMD at 10 kHz, % : 0.509


*)
CORDA ARIETTA preamplifier with crossfeed filter turned off.


Frequency response


Noise level


Dynamic range


THD + Noise (at -3 dB FS)


Intermodulation distortion


IMD (swept tones)

2012-10-08

USB flash drive capacity recovery

After using a Windows Image Writer to make a bootable Chromium OS USB drive (*), my 8 GByte USB flash memory stick has been partitioned to a 2 GByte size.

Go here to recover 8 GByte capacity.


Click Start , type CMD in the search field and press enter key to open the Windows Command window. The default command prompt should be C:\> .

run diskpart
C:\> DISKPART
The prompt changes to reflect the actions done within DISKPART command, DISKPART> .

DISKPART> LIST DISK
This command reports the number 0 represents the hard drive, and the number 1 is assigned to the USB drive in a single HDD PC configuration.

DISKPART> SELECT DISK 1
Disk 1 is now the selected disk.
(Replace the number 1 with the variable assigned for your USB drive in the previous command.)

DISKPART> CLEAN
DiskPart succeeded in cleaning the disk.

DISKPART> CREATE PARTITION PRIMARY
DiskPart succeeded in creating the specified partition.

DISKPART> EXIT

VoilĂ . Next make format by usual way...

*) How To Turn Your Netbook Into a Chromebook with Chromium OS - http://lifehacker.com/5820358/how-to-turn-your-netbook-into-a-chromebook-with-chromium-os