On Fri, 30 Nov 2001 20:33:36 +0700
Constant Brouerius van Nidek
Dear Doug, dear Geof, If the sound carrier in the USA is always 4,5 mHz from the picture carrier and in Europe it is different, than xawtv must have some information as to where the sound should be as you are able to make a choice between USA Europe, Australia and many others. So I had the hope that the distance between the two could be adjusted manually ;-(. By the way, in what mHz reach I would find UHF-H because I am still missing two stations in my silent TV ;-).
Hello Constant, As I have implied in my earlier posts, I am out of my depth here, but curious (which is sometimes a dangerous condition to be in ;-) I have, however, been digging around in the sources, which you will have but Doug does not. I am therefore going to quote the full text of frequencies.h below, because it may give Doug a hint as to what you might do. I apologise to those not following this thread for the length of this post. Regards, Geoff /* * Worldwide channel/frequency list * * Nathan Laredo (laredo@broked.net) * * Frequencies are given in kHz */ #define NTSC_AUDIO_CARRIER 4500 #define PAL_AUDIO_CARRIER_I 6000 #define PAL_AUDIO_CARRIER_BGHN 5500 #define PAL_AUDIO_CARRIER_MN 4500 #define PAL_AUDIO_CARRIER_D 6500 #define SEACAM_AUDIO_DKK1L 6500 #define SEACAM_AUDIO_BG 5500 /* NICAM 728 32-kHz, 14-bit digital stereo audio is transmitted in 1ms frames containing 8 bits frame sync, 5 bits control, 11 bits additional data, and 704 bits audio data. The bit rate is reduced by transmitting only 10 bits plus parity of each 14 bit sample, the largest sample in a frame determines which 10 bits are transmitted. The parity bits for audio samples also specify the scaling factor used for that channel during that frame. The companeded audio data is interleaved to reduce the influence of dropouts and the whole frame except for sync bits is scrambled for spectrum shaping. Data is modulated using QPSK, at below following subcarrier freqs */ #define NICAM728_PAL_BGH 5850 #define NICAM728_PAL_I 6552 /* COMPREHENSIVE LIST OF FORMAT BY COUNTRY (M) NTSC used in: Antigua, Aruba, Bahamas, Barbados, Belize, Bermuda, Bolivia, Burma, Canada, Chile, Colombia, Costa Rica, Cuba, Curacao, Dominican Republic, Ecuador, El Salvador, Guam Guatemala, Honduras, Jamaica, Japan, South Korea, Mexico, Montserrat, Myanmar, Nicaragua, Panama, Peru, Philippines, Puerto Rico, St Christopher and Nevis, Samoa, Suriname, Taiwan, Trinidad/Tobago, United States, Venezuela, Virgin Islands (B) PAL used in: Albania, Algeria, Australia, Austria, Bahrain, Bangladesh, Belgium, Bosnia-Herzegovinia, Brunei Darussalam, Cambodia, Cameroon, Croatia, Cyprus, Denmark, Egypt, Ethiopia, Equatorial Guinea, Finland, Germany, Ghana, Gibraltar, Greenland, Iceland, India, Indonesia, Israel, Italy, Jordan, Kenya, Kuwait, Liberia, Libya, Luxembourg, Malaysa, Maldives, Malta, Nepal, Netherlands, New Zeland, Nigeria, Norway, Oman, Pakistan, Papua New Guinea, Portugal, Qatar, Sao Tome and Principe, Saudi Arabia, Seychelles, Sierra Leone, Singapore, Slovenia, Somali, Spain, Sri Lanka, Sudan, Swaziland, Sweden, Switzeland, Syria, Thailand, Tunisia, Turkey, Uganda, United Arab Emirates, Yemen (N) PAL used in: (Combination N = 4.5MHz audio carrier, 3.58MHz burst) Argentina (Combination N), Paraguay, Uruguay (M) PAL (525/60, 3.57MHz burst) used in: Brazil (G) PAL used in: Albania, Algeria, Austria, Bahrain, Bosnia/Herzegovinia, Cambodia, Cameroon, Croatia, Cyprus, Denmark, Egypt, Ethiopia, Equatorial Guinea, Finland, Germany, Gibraltar, Greenland, Iceland, Israel, Italy, Jordan, Kenya, Kuwait, Liberia, Libya, Luxembourg, Malaysia, Monaco, Mozambique, Netherlands, New Zealand, Norway, Oman, Pakistan, Papa New Guinea, Portugal, Qatar, Romania, Sierra Leone, Singapore, Slovenia, Somalia, Spain, Sri Lanka, Sudan, Swaziland, Sweeden, Switzerland, Syria, Thailand, Tunisia, Turkey, United Arab Emirates, Yemen, Zambia, Zimbabwe (D) PAL used in: China, North Korea, Romania, Czech Republic (H) PAL used in: Belgium (I) PAL used in: Angola, Botswana, Gambia, Guinea-Bissau, Hong Kong, Ireland, Lesotho, Malawi, Nambia, Nigeria, South Africa, Tanzania, United Kingdom, Zanzibar (B) SECAM used in: Djibouti, Greece, Iran, Iraq, Lebanon, Mali, Mauritania, Mauritus, Morocco (D) SECAM used in: Afghanistan, Armenia, Azerbaijan, Belarus, Bulgaria, Estonia, Georgia, Hungary, Zazakhstan, Lithuania, Mongolia, Moldova, Russia, Slovak Republic, Ukraine, Vietnam (G) SECAM used in: Greecem Iran, Iraq, Mali, Mauritus, Morocco, Saudi Arabia (K) SECAM used in: Armenia, Azerbaijan, Bulgaria, Estonia, Georgia, Hungary, Kazakhstan, Lithuania, Madagascar, Moldova, Poland, Russia, Slovak Republic, Ukraine, Vietnam (K1) SECAM used in: Benin, Burkina Faso, Burundi, Chad, Cape Verde, Central African Republic, Comoros, Congo, Gabon, Madagascar, Niger, Rwanda, Senegal, Togo, Zaire (L) SECAM used in: France */ /* --------------------------------------------------------------------- */ struct CHANLIST { char *name; int freq; }; struct CHANLISTS { char *name; struct CHANLIST *list; int count; }; #define CHAN_COUNT(x) (sizeof(x)/sizeof(struct CHANLIST)) /* --------------------------------------------------------------------- */ extern struct CHANLISTS chanlists[]; extern struct STRTAB chanlist_names[]; extern int chantab; extern struct CHANLIST *chanlist; extern int chancount; _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com