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Voice Modems and Professional Telephony Hardware
https://www.nch.com.au/ivm/modems.html#:~:text=Go%20to%20the%20Windows%20Control%20Panel%20double%20click,then%20voice%20modem%20TAPI%20drivers%20are%20not%20installed.
Play/Record sound with a voice modem
http://gtro.com/delphi/wave_e.php
This article covers a very simple way to play and record sound to and from a voice modem wave device. Sound is recorded digitally by sampling the audio signal (waveform) many times per second; commonly 8000, 11050, 22100, 44100, or 48000 times per second. This is described as a sampling rate of 8, 11.05, 22.1, 44.1, or 48 kilohertz (kHz).
Audio MODEM - Apps on Google Play
https://play.google.com/store/apps/details?id=bit.zeyde.audiomodem&hl=en_US&gl=US
Audio MODEM. This application enables the user to transmit data between air-gapped devices using audio. It uses a simple MODEM algorithm to enable the user to send and receive short data messages (up to 250 bytes, within up to 3 seconds) between nearby phones or computers, utilizing the sender's speaker and the receiver's microphone.
Voice modem command to play a sound file - General Modem ...
https://www.tek-tips.com/viewthread.cfm?qid=506758
Pratheesh. RE: Voice modem command to play a sound file. pansophic (MIS) 23 Mar 03 23:28. I believe that you must send the WAV file through the WAV device associated with the modem. Modems typically take a 2, 3 or 4 bit sample at 7200Hz. This is significantly different than your WAV file's configuration. In theory, once you have set +VTX to the ...
Playing wav over modem | DaniWeb
https://www.daniweb.com/programming/software-development/code/313281/playing-wav-over-modem
System.IO.Ports.SerialPort comPort; comPort = new System.IO.Ports.SerialPort("Com2", 115200, System.IO.Ports.Parity.None, 8, StopBits.One); comPort.DtrEnable = true; //Switch to Voice Mode comPort.Write("AT+FCLASS=8" + System.Convert.ToChar(13).ToString()); //Call Number comPort.Write("ATDT1231234" + …
How To Play a wav File Over Modem – Step 1: Modem, Sound ...
http://www.comco-inc.com/handyish/?p=3
Connecting a Voice Modem to Sound Card for playing wav files Use the 1/8″ patch cord to connect the modem’s stereo LINE-out jack to the sound card’s MIC jack. This allows you to monitor modem activities through your headset.
How to make voice call using modem and play a sound file?
https://social.msdn.microsoft.com/Forums/en-US/c4e96bf7-af5e-4a15-b17b-3311f287f52e/how-to-make-voice-call-using-modem-and-play-a-sound-file
Dear all, I'm a student developer and newbie here. I'm working on my final year project and got a problem. How can I use C# to make voice call using modem and play a sound file? I've search around the internet but got no idea. Would any oen kindly teach me and give me some sample code? Thx · Hi Kevin! I'd just refer you to an exelent book: Pro .NET 2.0 ...
How to make voice call using modem and play a sound …
https://www.codeproject.com/questions/44431/how-to-make-voice-call-using-modem-and-play-a-soun
How do I use a modem to call a phone and play a wave file over it Using conected GSM modem/phone, How do I make a phone call and play an audio file in my C# winforms App A voice call using C# with GSM
Play Audio File on Phone Line with Raspberry Pi – IoT Bytes
https://iotbytes.wordpress.com/play-audio-file-on-phone-line-with-raspberry-pi/
While trying to play an audio file over the phone line using the analog modem, you need to specify voice compression method and the sampling specification using the VSM AT Command (+VSM=cml,vsr). The “cml” parameter identifies the compression method and the “vsr” parameter identifies the sampling rate. You may refer to the following table for the supported values for …
The Sound of dial-up Internet - YouTube
https://www.youtube.com/watch?v=gsNaR6FRuO0
EDIT: November 2020 wow this really blew up over the years. I have made a direct download available here https://freesound.org/people/wtermini/sounds/546450...
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