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File transfer ... sound! | Good orderlies wander around. |
Message#1 22.07.11, 12:19 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 872 Check in: 02.01.10 HTC HD2 Reputation: 33 | Actually remembered the bike of many years ago, between the two spectra had to pass the game. The perverts lived at different ends of the city, and the tapes are expensive ... As a result, one called the other, he turned on the tape recorder to record and the first one took out his tape from the computer and lost it. The total file is transferred! I understand that this is a perversion. But you want it :) Please tell me which way to dig (are there any ready-made classes, code examples) for working with speakers and a microphone. Transmission is carried out by tonality. First is the heading-preparation (high-low-high-low with breaks of 200 milliseconds) After a second, a piece of 64 bytes in length is transmitted. Breaks 125 milliseconds (25 per bit, 100 delay) (minimize errors with a lower speed, theoretically, you can still cut). The result is, with minimal errors, we have a speed of 1 byte / second. But this is an option with ear sensitivity, the technique will work much faster :) I repeat, are there any ready-made examples of working with speakers and a microphone, more specifically, working with tonality. Why do I not use the volume, is it 100,500 times lighter? Yes, because getting an error is much easier, you just need to get up from the chair while you are playing. I do not know why I need this garbage. But this is fun! Post has been editedloband_ml - 22.07.11, 12:21 -------------------- Asus P525 (stored as a relic) + Asus A730 (I can’t solder the cable) + |
Message#2 22.07.11, 13:08 | |
[offline] Group: Curators Messages 6788 Check in: 03.08.08 Razer phone Reputation: 1040 | About the transfer itself - there is such a thing as a dialup ... -------------------- |
Message#3 22.07.11, 14:22 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 872 Check in: 02.01.10 HTC HD2 Reputation: 33 | Transfer data via call? Even cooler. -------------------- Asus P525 (stored as a relic) + Asus A730 (I can’t solder the cable) + |
Message#4 22.07.11, 18:17 | |
[offline] Group: Curators Messages 6788 Check in: 03.08.08 Razer phone Reputation: 1040 | With a dial-up, the data is transmitted by sound, so you can not reinvent the wheel but take something ready and convert it to a bunch of speakers<->microphone. -------------------- |
Message#5 22.07.11, 18:22 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 872 Check in: 02.01.10 HTC HD2 Reputation: 33 | With a dial-up, the data is transmitted by sound, so you can not reinvent the wheel but take something ready and convert it to a bunch of speakers<->microphone. You see, I am writing this for the purpose of self-education. Post has been editedloband_ml - 22.07.11, 21:09 -------------------- Asus P525 (stored as a relic) + Asus A730 (I can’t solder the cable) + |
Message#6 22.07.11, 19:40 | |
Local [offline] Group: Friendssavagemessiahzine.com Messages 142 Check in: 28.09.10 Doogee x5 max Reputation: 14 | Since for that matter, let's change the duty cycle ... because zazlichat different tones is more difficult than counting the time until the next pulse ... -------------------- Who served in the army, he does not laugh in a circus! LG B1300 :) ->Glofiish x500 + ->Gigabyte gSmart i120 ->htc p3470 ->nokia 7390 ->i-mate JAMA ->htc touch diamond p3700 ->Sony Ericsson xperia X2 ->Huawei Honor ->Doogee X5Max_Pro |
Message#7 22.07.11, 21:06 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 872 Check in: 02.01.10 HTC HD2 Reputation: 33 | different tones are harder than counting the time until the next pulse And the fact of the matter is that we have tones in the simplest version 2, and in the most complex 8. Nothing complicated. -------------------- Asus P525 (stored as a relic) + Asus A730 (I can’t solder the cable) + |
Message#8 24.07.11, 01:36 | |
Guru [offline] Group: Curators Messages 7357 Check in: 29.12.08 Microsoft Lumia 950 Reputation: 760 | loband_ml, This garbage, I thought here, but after all, color can be transferred somewhere 10-20 MB / s -------------------- Loox C550 / Galaxy Spica / Omnia W / ATIV S / Galaxy J120F / Lumia 950 / Galaxy Note9 Linux instead of Android |
Message#9 24.07.11, 02:01 | |
Local [offline] Group: Friendssavagemessiahzine.com Messages 152 Check in: 18.10.10 Reputation: 13 | 100% agree with-WOLF-. |
Message#10 24.07.11, 11:24 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 872 Check in: 02.01.10 HTC HD2 Reputation: 33 | This garbage, I thought here, but after all, color can be transferred somewhere 10-20 MB / s You will not be able to perceive the color correctly by the camera, but to receive only 20-40 frames per second, the synchronization of the reception-transmission is also lame. And digital noise (not only the screen is visible, a bunch of extraneous objects? -------------------- Asus P525 (stored as a relic) + Asus A730 (I can’t solder the cable) + |
Message#11 24.07.11, 14:52 | |
Guru [offline] Group: Curators Messages 7357 Check in: 29.12.08 Microsoft Lumia 950 Reputation: 760 | [email protected], 12:24 you will not be able to perceive color correctly 256 colors completely. [email protected], 12:24 20-40 frames per second Yes, it is precisely this calculation. [email protected], 12:24 synchronization of reception and transmission Changing pictures is easy to "see." [email protected], 12:24 digital noise (not only the screen is visible, a bunch of extraneous objects The current cameras are about 5 megapixels, and the WVGA is only about 0.5. -------------------- Loox C550 / Galaxy Spica / Omnia W / ATIV S / Galaxy J120F / Lumia 950 / Galaxy Note9 Linux instead of Android |
Message#12 24.07.11, 17:51 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 872 Check in: 02.01.10 HTC HD2 Reputation: 33 | 256 colors completely. The PDA camera in IDEAL conditions would not trust more than 32. In normal - more than 8. The current cameras are about 5 megapixels, and the WVGA is only about 0.5. You will have to fix the receiver and transmitter, or divert the lion's share of resources to calculate the location of the screen. -------------------- Asus P525 (stored as a relic) + Asus A730 (I can’t solder the cable) + |
Message#13 25.07.11, 13:46 | |
Novice [offline] Group: Active users Messages 47 Check in: 24.06.11 Reputation: 0 | do not call color ... |
Message#14 25.07.11, 14:08 | |
☼Porno♂Graph☼ [offline] Group: Friendssavagemessiahzine.com Messages 988 Check in: 04.01.11 Acer Liquid Z630 Reputation: 72 | So, was it possible to convey the hello dolly? Or do you write? -------------------- Acer Liquid Z630(black) PCT stock firmware |
Message#15 25.07.11, 14:26 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 872 Check in: 02.01.10 HTC HD2 Reputation: 33 | On the topic, no one answered, is there any where ready examples of parsing the tonalities and synthesizing sound -------------------- Asus P525 (stored as a relic) + Asus A730 (I can’t solder the cable) + |
Message#16 25.07.11, 16:45 | |
Guru [offline] Group: Curators Messages 7357 Check in: 29.12.08 Microsoft Lumia 950 Reputation: 760 | loband_ml, So you just invent the modem. -------------------- Loox C550 / Galaxy Spica / Omnia W / ATIV S / Galaxy J120F / Lumia 950 / Galaxy Note9 Linux instead of Android |
Message#17 25.07.11, 17:48 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 872 Check in: 02.01.10 HTC HD2 Reputation: 33 | loband_ml, So you just invent the modem. I repeat, are there any ready-made examples of working with speakers and a microphone, more specifically, working with tonality. Essentially answer, please. -------------------- Asus P525 (stored as a relic) + Asus A730 (I can’t solder the cable) + |
Message#18 25.07.11, 17:57 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 1091 Check in: 27.01.10 Asus Pegasus 2 Plus X550 Reputation: 41 | Actually remembered the bike of many years ago, between the two spectra had to pass the game. The perverts lived at different ends of the city, and the tapes are expensive ... As a result, one called the other, he turned on the tape recorder to record and the first one took out his tape from the computer and lost it. The total file is transferred! Unfortunately, the bike remained a bike, because The range of sound transmitted through the telephone network is already the voice range of the tape recorder. Roughly speaking, high-frequency and low-frequency signals were cut off. But in principle, the idea is realizable. You need to start with Morse code - there is a tone - 0, there is no tone - 1. Well, take the old modem protocols to correct errors during transmission. There is something two bytes (preparation), 8 bytes of data, checksum Well, then complicate. -------------------- Smartq V7 Android 2.1 V3.rev1 | Lg Optimus One Android 2.2 Froyo | Beelink M8B Kitkat 4.4 | Lenovo S580 X2 pieces | Raspberry Pi 2 v1.1 | Digma Plane 8.1 3G 5.1 | Asus Pegasus 2 Plus 5.1 | Huawei T3 9.6 Noughat 7.0 | DIGMA Plane 8540E 4G | Xiaomi 6A 2/32 |
Message#19 25.07.11, 20:00 | |
Old resident [offline] Group: Friendssavagemessiahzine.com Messages 872 Check in: 02.01.10 HTC HD2 Reputation: 33 | I have a protocolI need an example of synthesizing and parsing sound (or library) on a PDA. -------------------- Asus P525 (stored as a relic) + Asus A730 (I can’t solder the cable) + |
Message#20 25.07.11, 21:14 | |
Guru [offline] Group: Curators Messages 7357 Check in: 29.12.08 Microsoft Lumia 950 Reputation: 760 | loband_ml, PWM? By the way, you will not be able to bring out the line. -------------------- Loox C550 / Galaxy Spica / Omnia W / ATIV S / Galaxy J120F / Lumia 950 / Galaxy Note9 Linux instead of Android |
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