Timeline for Send analog audio through the rs232 port of a data transmitter
Current License: CC BY-SA 3.0
24 events
| when toggle format | what | by | license | comment | |
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| Jan 20, 2016 at 18:40 | answer | added | Dean Franks | timeline score: 0 | |
| Jan 20, 2016 at 16:38 | comment | added | Marcus Müller | @Icy see my answer. So you're right, after mu-Law coding, you still would have to compress. | |
| Jan 20, 2016 at 16:37 | comment | added | Marcus Müller | @Icy 8bit µ-Law is still too much data for that link, sorry. | |
| Jan 20, 2016 at 16:23 | history | edited | JRE | CC BY-SA 3.0 |
deleted 2 characters in body; edited title
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| Jan 20, 2016 at 16:16 | comment | added | Icy | You could use that ADC, you would need DSP program to compress the 24bit samples into 8bit A or mu law values and do compression on the resultant data stream. | |
| Jan 20, 2016 at 16:12 | answer | added | Marcus Müller | timeline score: 2 | |
| Jan 20, 2016 at 16:06 | comment | added | magic7music | Tel. quality is more than enough. | |
| Jan 20, 2016 at 16:06 | comment | added | magic7music | I think I could do the ADC with an TexasInstruments chip TLV320ADC3101. | |
| Jan 20, 2016 at 16:04 | comment | added | Icy | And what audio bandwidth do you need? Telephone voice quality (mono) is 300Hz - 3.4KHz - sampled using 8bit (A or mu law) ADC at 8KHz giving 64000 bits per second, though this can be compressed. | |
| Jan 20, 2016 at 15:38 | comment | added | Marcus Müller | baud, with a "d", but ok, that's not really much. | |
| Jan 20, 2016 at 15:25 | comment | added | magic7music | max 38400 baut. | |
| Jan 20, 2016 at 15:24 | comment | added | Marcus Müller | what is your Rs232 bit rate? | |
| Jan 20, 2016 at 15:14 | comment | added | magic7music | The research that I did was consentrated on the RF link. It works between 420 and 475MHz with a power of 5Watts. On one side I have reconstructed the RX-TX in a small box that can be hooked onto the camera. I started with the ft232r and a Raspberry Pi audio and RS232 module, but I got stucked here. | |
| Jan 20, 2016 at 14:52 | comment | added | Andy aka | So what has your research unearthed so far? | |
| Jan 20, 2016 at 14:50 | comment | added | Eugene Sh. | Multimedia over RS-232?? Ambitious.. | |
| Jan 20, 2016 at 14:35 | comment | added | magic7music | I only want to transmitt sound. | |
| Jan 20, 2016 at 14:34 | comment | added | Bimpelrekkie | @Raj "The transmitter and Receiver that I have can only communicate with each other via RS232." So it is what he has lying around. @ OP: please note that the datarate of an RS232 connection is quite low. I doubt if it is high enough for sending sound and pictures. Video you can forget unless postage-stamp size low quality is good enough for you. | |
| Jan 20, 2016 at 14:25 | history | edited | magic7music | CC BY-SA 3.0 |
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| S Jan 20, 2016 at 14:20 | history | edited | Dave Tweed | CC BY-SA 3.0 |
appended answer 212440 as supplemental
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| Jan 20, 2016 at 14:15 | review | Suggested edits | |||
| S Jan 20, 2016 at 14:20 | |||||
| Jan 20, 2016 at 14:00 | comment | added | Photon001 | May i know why you have preferred for RS232 communication ? and What is your goal of this by converting (its somewhat challenging and waste of time) audio to RS232. It should need filter,ADC,MCU, MAX232 such big system is required | |
| Jan 20, 2016 at 13:55 | comment | added | NeinDochOah | This question is really vague, maybe you can explain a bit more? Are you looking for an ADC maybe? | |
| Jan 20, 2016 at 13:40 | review | First posts | |||
| Jan 20, 2016 at 14:59 | |||||
| Jan 20, 2016 at 13:37 | history | asked | magic7music | CC BY-SA 3.0 |