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About theoldnic

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  1. If you can tune into "80's" or "90's" stations (two separate Sydney DAB apart its' generic channel i think(i don't remember) is WSFM) , Coles is not too bad compared.
  2. TV stations clump their transmitters together at the one location BECAUSE everyone's antennas need to point toward them direction-ally. whereas radio is all over the place inclusive use of directional aerials such as Yagi's used usually out of town for high power sitting off to one side of the delivery target area,, some omni directional on buildings (commercial medium high power), some 30km out of town or city on a tall mountain. e.g. Radio National. While the TV and the radio seem the same, there is always some variation of programs locally from ABC and MMM and JJJ.
  3. ( 'Laser" PT-7C player ) Decided my mobile phone is an excessive point for viewing the ad hoc small videos and concept test, it runs down the battery fast ! So i decided to get hold of a cheap portable DVD player, of is just a nice concept in travel or entertainment EXCEPT AND HERE IT IS , the codecs for the device are more than generously in the favor of the maker not the user although extremely common, well... actually more of a common sense system. So i bought one, not that cheap easily for the trouble it has to be used. 1. It numbers every file o to whatever number onward and has no directory tree manipulation , simply a remote control with around 50 buttons and for the size of a 3 year old child's hands. The little one, charging is 5 hours viewing is two hours. The big one ! The instruction book talks about watching movies on it (as an audio visual device implies) , However the main thing it details is that apart only JPEG compression only , there are 5 file types approximately that hit and miss can be used DIVX with Xvid codec, AVI, mpeg 1 , mpeg 2 mpeg4 HOWEVER only one of these is true , that is Mpeg2 with 5.1 channel encoding(mpg2 audio) ! The main mistake the instruction book makes is talking and "comparing" the codecs it knows only ONE of them will operate MPEG2 encoded as JPEG with mpeg-Layer2 5.1 channel stereo surround sound. Very misleading , it has taken me two solid days to re-do all my test USB disk movies. Incidentally , WHERE THE HELL would you find copyrighted good movies on DVD encoded in JPEG-mpeg2 completely for sale or hire? ***Incidentally AVI and MPEG can be encoded in 24 bit BMP and other audio schemes. Note; 'JPEG-mpeg2' simply means an MPEG encoded using JPEG as the image system internally, really simply MPEG-2. Incidentally, there was a good freeware converter called "Any Video Converter" does batch conversion i use from time to time can setup all these quirks so not much of a problem except the drag of doing it.
  4. I was referring to the point the CPU and its lower BUS speed frequency is capable of processing a "sample" or processing the "ready expanded file data to play" setting the synthesizer for each slice faster than audible sound itself relating time frame of change in music and the frequency period of one cycle of audible sound played(Synth)/recorded(Filter). It's no FM station at the "time frame single cycle segment speed" but more alike an AM stereo station playing (which is actually pretty good anyhow but a slight misnomer about frequency as the AM carrier does not actually vary , the power output varies and the variance is listened to to calibrate a band and sense the power modulation - but just mistake AM for FM and its better)
  5. In the following article the "sample rate" of 24 bit audio rates around the value of an AM broadcast radio carrier ! https://www.tested.com/tech/1905-the-real-differences-between-16-bit-and-24-bit-audio/ The main point to remember is the "samples" from Audio are obviously in the human hearing range for listening of KHz , whereas the CPU can "sample" with a BUS (binary unit speed) alike an FM radio station in an old Pentium 3 8086 type CPU of 100Mhz or more BUS speed. (The CPU speed of around 450 to 500 MHz is the beat clarifier to ho;d all the "data and instruction BUS frequencies" harmonically in sync) Actual "files stored on disk" as data should not be ambiguated to the information after the file is opened and re-expanded from its storage compression, as that point is a "codec" is simply a compression calculation for storage, when a file is re-expanded they all play the same by the multi-media section of the CPU as "data" as is found on a CD.
  6. With images, the compression process is the maths, after compression by a coefficient (codec) the final number p/segment (8 , 16,32,64 bit chunk) as choice is only a file until re-expanded, so the actual processor systems you are saying in the Multi-media section of the CPU core does not (or in effect have never been made to) "operate" on music data to produce sound with any more than 16 bits (2x 8 bit bytes or 4x 8bit bytes 24 bits and split). In short the CPU architecture circuitry cannot (shuffle through an expanded data set for multi media "sound" reproduction/generation) use any more than 24 bits ?!? Or more succinctly , are there any other multi media sound architectures in CPU use re-expanded sound data , or are all sound data core sections 16 bit maximum info??
  7. Then given that, 24 bit is a waste of filing space ! ( Which came first 24 bit or 16 bit audio ?) As for clarity, one person was saying that the encoding "system makes the difference in them", which is 90% right , because alike "JPEG quantization tables" (image compression codec) , "THE specific audio codec" is largely the accuracy of the sound reproduction and much of the point of a codec IS the efficiency of its information accuracy in reconstruction coupled with compression size (metaphorically akin to engine power to weight ratio of aircraft along with lift area efficiency).
  8. Would say the 34 bit (3 8 bit bytes) would be the better of the two for clarity. More information storage, makes no difference whether a 32 or 64 bit file system or any other 'NIX system.
  9. Have you thought of tuning it to an FM dish. At some time i'm putting my design into a parabolic dish https://www.scribd.com/document/396824710/FM-AM-Antenna-Setup-Standard-50-cm-1-8th-wave-Unit
  10. From memory 87.5 to 108 while the USA FM band is wider and to 110 Mhz. To solve "loss" pure copper core low loss RG6 for FM broadcast narrows gets 15 meters even if you bodgy-use a piece of UHF-CB low loss RG213. I make two long range aerials , 60Km @ 10Kw (90Km @ 40Kw) https://www.scribd.com/document/396824710/FM-AM-Antenna-Setup-Standard-50-cm-1-8th-wave-Unit 50Km @ 10Kw (60Km @ 40Kw) https://www.scribd.com/document/400632904/FM-AM-long-range-30-cm-housing-1-16th-wave-Antenna-unit-setup There is another i do not actually have in production at this time but will soon, it rates 110Km @ 40Kw
  11. Nine tenths of the way hackers learn your password is standing behind you in public internet cafe's. With some people scraps of paper that have repeated regularly with regular numbers and letters. Pypal itself is ok but you need to always check in every few days to a week and assess and never click through or answer paypal stuff from your email, you go into the account and look for anything item specific sent for you and if it doesn't match in the account to the email then ask the paypal inside your account.
  12. You may find a bit by the changes and history of the Australian Radio Frequency Spectrum Allocations. Take a look in the ACMA government site , it may be able to point you in the correct direction for it, seems to be 1600Khz to 600Khz as AM broadcast is however BUT search in reference to wide band transmitter allocations of the year/era.
  13. In more conventional electrical audio circuits and linkage between appliances, a couple of controls from the source means that there can be over amplification with little signal or too much signal. e.g. Source extremely low level and all other mid appliances low level and excessive high pre-amp level or one of these is set near full in the chain and others adjusted. Try the source at somewhere 25% - 40% , pre-amp(if it is there) lower than mid level setting and all others except the final speaker adjust at low level. Usually its simply a bad throughput amplification adjust setup in the chain.
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