|
General Asylum General audio topics that don't fit into specific categories. |
|
|
|
General Asylum General audio topics that don't fit into specific categories. |
|
In Reply to: RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) posted by fantja on September 25, 2020 at 23:31:27:
Specifically the CD (and Blu-ray) laser is a "quantum well" that employs quantum confinement in two dimensions, so when energized the quantum well produces a steady stream of photons of the desired wavelength in third direction. The data that is contained on the data spiral contains a series of lands and pits of various lengths. The "signal" (ON is reflected from lands to the photodetector whereas no signal (OFF) is returned from pits due to the clever use of light wave interference when the CD laser strikes the pit, the depth of which produces the interference at that wavelength. Then all the ON/OFF data is assembled into meaningful 1s and 0s according to a predetermined table of values.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups Full ThreadTopic - Do gold compact discs actually sound better - immatthewj 15:11:56 09/17/20 (142)
- RE: Do gold compact discs actually sound better - mwheelerk 18:49:26 02/21/21 (1)
- RE: Do gold compact discs actually sound better - geoffkait 02:40:00 02/22/21 (0)
- I Suppose The Way To Know For Sure... - Inmate51 15:17:24 10/11/20 (4)
- RE: I Suppose The Way To Know For Sure... - immatthewj 15:41:18 10/11/20 (3)
- RE: I Suppose The Way To Know For Sure... - Inmate51 11:15:19 10/13/20 (2)
- RE: I Suppose The Way To Know For Sure... - immatthewj 15:34:58 10/13/20 (1)
- RE: I Suppose The Way To Know For Sure... - geoffkait 06:08:39 10/14/20 (0)
- It's along the lines of SHM CDs that use a more transparent clear layer - geoffkait 07:41:15 09/24/20 (0)
- RE: Do gold compact discs actually sound better - mwheelerk 20:12:02 09/23/20 (46)
- Pop Quiz - geoffkait 05:56:48 09/27/20 (45)
- RE: Pop Quiz - pictureguy 20:56:48 10/10/20 (42)
- RE: Pop Quiz - geoffkait 05:55:10 10/11/20 (41)
- RE: Pop Quiz - Story 06:14:03 10/11/20 (40)
- RE: Pop Quiz Pt 2 - geoffkait 09:25:38 10/11/20 (0)
- RE: Pop Quiz - geoffkait 06:49:06 10/11/20 (38)
- RE: Pop Quiz - fantja 09:55:51 10/11/20 (37)
- RE: Pop Quiz - pictureguy 10:35:56 10/11/20 (36)
- RE: Pop Quiz - geoffkait 13:06:40 10/11/20 (4)
- RE: Pop Quiz - immatthewj 13:25:11 10/11/20 (3)
- RE: Pop Quiz - geoffkait 17:04:25 10/11/20 (2)
- RE: Pop Quiz - immatthewj 17:08:45 10/11/20 (1)
- RE: Pop Quiz - geoffkait 03:32:24 10/12/20 (0)
- RE: Pop Quiz - geoffkait 11:49:31 10/11/20 (30)
- RE: Pop Quiz - fantja 14:11:16 10/11/20 (0)
- RE: Pop Quiz - pictureguy 14:08:38 10/11/20 (28)
- RE: Pop Quiz - geoffkait 14:54:06 10/11/20 (26)
- RE: Pop Quiz - pictureguy 21:41:09 10/11/20 (25)
- RE: Pop Quiz - geoffkait 03:42:11 10/12/20 (24)
- RE: Pop Quiz - pictureguy 08:56:40 10/12/20 (23)
- RE: Pop Quiz - geoffkait 10:03:47 10/12/20 (22)
- RE: Pop Quiz - pictureguy 11:21:53 10/12/20 (21)
- RE: Pop Quiz - geoffkait 12:13:33 10/12/20 (20)
- RE: Pop Quiz - immatthewj 13:01:10 10/12/20 (19)
- Hang on to your hats - geoffkait 13:59:14 10/12/20 (18)
- RE: Hang on to your hats - pictureguy 14:08:44 10/12/20 (17)
- RE: Hang on to your hats - geoffkait 14:32:32 10/12/20 (16)
- RE: Hang on to your hats - pictureguy 15:23:19 10/12/20 (15)
- RE: Hang on to your hats - geoffkait 15:25:55 10/12/20 (14)
- RE: Hang on to your hats - pictureguy 17:23:55 10/12/20 (13)
- RE: Hang on to your hats - geoffkait 03:44:26 10/13/20 (12)
- RE: Hang on to your hats - pictureguy 10:25:10 10/13/20 (11)
- RE: Hang on to your hats - geoffkait 10:38:21 10/13/20 (10)
- RE: Hang on to your hats - pictureguy 11:04:40 10/13/20 (9)
- RE: Hang on to your hats - geoffkait 06:07:00 10/14/20 (8)
- RE: Hang on to your hats - Inmate51 07:58:36 10/14/20 (5)
- RE: Hang on to your hats - geoffkait 08:04:40 10/14/20 (4)
- RE: Hang on to your hats - Inmate51 08:27:35 10/14/20 (3)
- RE: Hang on to your hats - pictureguy 09:27:22 10/14/20 (1)
- RE: Hang on to your hats - geoffkait 09:49:59 10/14/20 (0)
- RE: Hang on to your hats - geoffkait 09:01:12 10/14/20 (0)
- RE: Hang on to your hats - fantja 06:46:31 10/14/20 (1)
- RE: Hang on to your hats - geoffkait 07:35:23 10/14/20 (0)
- RE: Pop Quiz - fantja 14:13:01 10/11/20 (0)
- RE: Pop Quiz - fantja 02:58:22 09/28/20 (1)
- RE: Pop Quiz - geoffkait 08:32:06 09/28/20 (0)
- RE: Do gold compact discs actually sound better - HiOnFi 07:07:30 09/23/20 (1)
- Best non sequitur of the week. Nt - geoffkait 09:29:03 09/23/20 (0)
- Gold lasts FOREVER and justifies hefty price . . . - Billy Wonka 16:23:23 09/19/20 (2)
- RE: Gold lasts FOREVER and justifies hefty price . . . - Joe Appierto 00:31:07 09/20/20 (0)
- RE: Gold lasts FOREVER and justifies hefty price . . . - immatthewj 21:05:49 09/19/20 (0)
- Really !? this isn't a Joke question. ? - bare 19:03:11 09/18/20 (2)
- It is actually a very fair question... - samstone 07:17:38 09/24/20 (0)
- RE: Really !? this isn't a Joke question. ? - immatthewj 20:58:07 09/18/20 (0)
- Gold MFSL disc problem - M3 lover 09:07:47 09/18/20 (12)
- RE: Gold MFSL disc problem - Jack G 13:14:30 09/19/20 (0)
- Internal Stress? ......... - Todd Krieger 23:51:00 09/18/20 (1)
- RE: Internal Stress? ......... - immatthewj 12:00:57 09/19/20 (0)
- My Otis Redding - Otis Blue did the same thing. - dean_martin 14:51:46 09/18/20 (1)
- RE: My Otis Redding - Otis Blue did the same thing. - immatthewj 14:57:39 09/18/20 (0)
- RE: Gold MFSL disc problem - immatthewj 14:43:04 09/18/20 (5)
- Nope - M3 lover 10:18:33 09/20/20 (4)
- RE: Gold MFSL disc problem - immatthewj 09:19:07 09/18/20 (0)
- RE: Do gold compact discs actually sound better - Jonesy 08:02:41 09/18/20 (4)
- RE: Do gold compact discs actually sound better - immatthewj 08:47:41 09/18/20 (3)
- RE: Do greened compact discs actually sound better? - hifitommy 17:51:15 09/18/20 (0)
- RE: Do gold compact discs actually sound better - Jonesy 12:50:10 09/18/20 (1)
- RE: Do gold compact discs actually sound better - immatthewj 14:37:30 09/18/20 (0)
- RE: Do gold compact discs actually sound better - HiOnFi 04:46:38 09/18/20 (0)
- Rip all discs to computer file and listen that way - Feanor 04:37:39 09/18/20 (6)
- You can still get your jollies though .................. - Cut-Throat 04:51:58 09/18/20 (5)
- Excellent - I'm ordering a dozen right now! [nt] ;-) - Chris from Lafayette 09:12:50 09/18/20 (3)
- RE: Excellent - I'm ordering a dozen right now! [nt] ;-) - immatthewj 14:44:33 09/18/20 (2)
- Sounds good! (But how do you know I won't croak first?) [nt] ;-) - Chris from Lafayette 13:13:48 09/20/20 (1)
- RE: Sounds good! (But how do you know I won't croak first?) [nt] ;-) - immatthewj 22:14:38 09/20/20 (0)
- Haha !! -nt - Feanor 08:34:42 09/18/20 (0)
- RE: Do gold compact discs actually sound better - hahax@verizon.net 20:43:49 09/17/20 (3)
- I'm not surprised... - Story 03:05:55 09/18/20 (2)
- RE: I'm not surprised... - hahax@verizon.net 19:34:47 09/19/20 (1)
- RE: I'm not surprised... - Story 21:54:09 09/19/20 (0)
- RE: Do gold compact discs actually sound better - SgreenP@MSN.com 20:14:16 09/17/20 (0)
- RE: Do gold compact discs actually sound better - Todd Krieger 17:22:01 09/17/20 (0)
- Better reflectivity at near infrared wavelengths for better optical signal to noise ratio. Nt - geoffkait 16:26:52 09/17/20 (29)
- I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - Jonesy 12:54:55 09/18/20 (28)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - immatthewj 14:39:17 09/18/20 (27)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - Jonesy 14:52:19 09/18/20 (26)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - immatthewj 14:54:48 09/18/20 (25)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 08:59:33 09/19/20 (24)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - immatthewj 12:02:23 09/19/20 (23)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - JURB 02:09:38 09/20/20 (21)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 06:02:00 09/20/20 (20)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - JURB 12:58:26 09/20/20 (19)
- Regarding check sums... - Jonesy 20:41:20 09/24/20 (8)
- RE: Regarding check sums... - geoffkait 03:57:58 09/25/20 (6)
- RE: Regarding check sums... - fantja 23:32:24 09/25/20 (1)
- RE: Regarding check sums... - geoffkait 08:28:48 09/28/20 (0)
- RE: Regarding check sums... - tube524 14:07:06 09/25/20 (3)
- RE: Regarding check sums... - geoffkait 04:57:20 09/26/20 (0)
- RE: Regarding check sums... - fantja 23:30:44 09/25/20 (0)
- RE: Regarding check sums... - geoffkait 16:15:34 09/25/20 (0)
- RE: Regarding check sums... - fantja 02:47:24 09/25/20 (0)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 14:31:18 09/20/20 (9)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - JURB 15:30:48 09/20/20 (8)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 03:50:42 09/21/20 (7)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - fantja 02:46:35 09/25/20 (4)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 03:51:08 09/25/20 (3)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - fantja 23:31:27 09/25/20 (2)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 10/3/2017:01:10 10/3/20 (0)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 04:49:06 09/26/20 (0)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - JURB 08:22:14 09/21/20 (1)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 10:54:03 09/21/20 (0)
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 13:11:49 09/19/20 (0)
- I only bought one gold disc - Story 15:50:34 09/17/20 (3)
- RE: I only bought one gold disc - immatthewj 15:59:48 09/17/20 (2)
- RE: I only bought one gold disc - Story 17:59:36 09/17/20 (1)
- RE: I only bought one gold disc - immatthewj 19:17:00 09/17/20 (0)
- RE: Do gold compact discs actually sound better - PAR 15:26:52 09/17/20 (9)
- RE: Do gold compact discs actually sound better - geoffkait 05:27:46 09/27/20 (1)
- RE: Do gold compact discs actually sound better - immatthewj 19:40:37 09/27/20 (0)
- RE: Do gold compact discs actually sound better - immatthewj 15:28:30 09/17/20 (6)
- RE: Do gold compact discs actually sound better - PAR 15:36:11 09/17/20 (5)
- RE: Do gold compact discs actually sound better - immatthewj 15:58:47 09/17/20 (4)
- Geez - I took one of those "fun" online quizzes, and. . . - Chris from Lafayette 20:13:04 09/17/20 (3)
- RE: Geez - I took one of those "fun" online quizzes, and. . . - Bill the K 23:33:42 09/17/20 (0)
- RE: Geez - I took one of those "fun" online quizzes, and. . . - immatthewj 20:59:07 09/17/20 (0)
- RE: Geez - I took one of those "fun" online quizzes, and. . . - rivervalley817 20:57:49 09/17/20 (0)
- RE: Do gold compact discs actually sound better - 6bq5 15:15:26 09/17/20 (2)
- RE: Do gold compact discs actually sound better - immatthewj 15:22:13 09/17/20 (1)
- RE: Do gold compact discs actually sound better - LtMandella 15:36:05 09/17/20 (0)
Follow Ups
- RE: I didn't know that. I thought it was just to prevent deterioration. Interesting. (NT) - geoffkait 10/3/2017:01:10 10/3/20 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
