Separable, intelligible, single channel voice communication
The method provides for separable subchannels sharing a communication channel. A processor receives input of a user setting a transmitter device to a first of at least two subchannels of a communication channel in which the first subchannel comprises a first portion of a bandwidth of the communication channel. The processor receives an audio signal as input to the transmitter device. The processor converts a time-series waveform of the audio signal into a frequency-series waveform. The processor determines that the transmitter device is set to the first subchannel. In response to determining the device is set to the first channel, the processor filters the frequency-series waveform through a series of steep shoulder digital bandpass filters set to transmit through the first portion of the bandwidth, and the processor transmits the audio signal as the filtered frequency-series waveform.
1. A method of audio communication comprising:
setting, by a processor, a transmitter device to a first subchannel of a communication channel, wherein the first subchannel comprises a first portion of a bandwidth of the communication channel;
receiving, by the processor, an audio signal as input to the transmitter device;
converting, by the processor, a time-series waveform of the audio signal into a frequency-series waveform;
determining, by the processor, that the transmitter device is set to the first subchannel;
in response to determining the transmitter device is set to the first subchannel, filtering, by the processor, the frequency-series waveform through a series of steep shoulder digital bandpass filters set to bandpass the first portion of the bandwidth of the communication channel; and
transmitting, by the processor and the transmitter device, the audio signal as the filtered frequency-series waveform through the first portion of the bandwidth of the communication channel.
2. The method of claim 1 , wherein the filtered frequency-series waveform of the transmitted audio signal is received by a receiver device, wherein the receiver device is set to receive transmissions to the first subchannel of the communication channel and the transmitted audio signal is absent from a second receiver device set to receive transmissions to a second subchannel of the communication channel.
3. The method of claim 1 , wherein a receiver device includes a setting enabling receipt of audio signals transmitted on the first subchannel and a second subchannel.
4. The method of claim 1 , wherein a subchannel of the communication channel includes a guard band of frequency bandwidth below and above a segment range band of the subchannel bandwidth.
5. The method of claim 1 , further comprising:
setting, by the processor, the transmitter device to a full bandwidth of the communication channel;
receiving, by the processor, a next audio signal at the transmitter device;
determining, by the processor, that the transmitter device is set to the full bandwidth of the communication channel; and
in response to the determining that the transmitter device is set to the full bandwidth of the communication channel, transmitting, by the processor and transmitter device, the next audio signal over the full bandwidth of the communication channel.
6. The method of claim 5 , wherein the next audio signal is received by a receiver device that is set to the first subchannel of the first portion of the bandwidth of the communication channel and by a receiver device that is set to a second subchannel of a second portion of the bandwidth of the communication channel.
7. The method of claim 1 , further comprising:
setting, by the processor, the transmitter device to a second subchannel of the communications channel, wherein the second subchannel comprises a second portion of the bandwidth of the communication channel separated from the first subchannel by a guard portion of the bandwidth of the communication channel; and
transmitting, by the processor and the transmitter device, to the second subchannel, the audio signal as the filtered frequency-series waveform to a receiver device.
8. The method of claim 1 , wherein the first portion of the bandwidth of the communication channel and a second portion of the bandwidth of the communication channel include multiple segmented ranges within the bandwidth of the communication channel in which each segmented range is bordered by a guard portion of the communication channel.
9. The method of claim 8 , wherein the multiple segmented ranges include, respectively, a guard portion of the bandwidth of the communication channel of at least 10 Hz between segmented ranges, and the segmented ranges of the first subchannel and a second subchannel of the communication channel includes a bandwidth of the communication channel of at least 50 Hz, respectively.
10. The method of claim 1 , further comprising:
receiving, by the processor of a first transceiver device, the filtered frequency-series waveform transmitted from a second transceiver device to the first subchannel;
converting, by the processor, the frequency-series waveform to the time-series waveform through a series of digital bandpass filters set to receive signals from the first subchannel corresponding to the first portion of the bandwidth of the communication channel; and
in response to determining the first transceiver device is set to the first subchannel, converting, by the processor and a speaker component of the first transceiver device, the time-series waveform to an audible sound corresponding to the audio signal input to a second transceiver device.
11. A computer system for audio communication, the computer system comprising:
one or more computer processors;
one or more computer-readable storage media, and program instructions stored on the one or more computer-readable storage media, the one or more computer processors when executing the program instructions are configured to:
set a transmitter device to a first subchannel of a communication channel, wherein the first subchannel comprises a first portion of a bandwidth of the communication channel;
receive an audio signal as input to the transmitter device;
convert a time-series waveform of the audio signal into a frequency-series waveform;
determine that the transmitter device is set to the first subchannel of the communication channel;
in response to determining the transmitter device is set to the first subchannel, filter the frequency-series waveform through a series of steep shoulder digital bandpass filters set to bandpass the first portion of the bandwidth of the communication channel; and
transmit the audio signal from the transmitter device as the filtered frequency-series waveform through the first portion of the bandwidth of the communication channel.
12. The computer system of claim 11 , wherein the filtered frequency-series waveform of the transmitted audio signal is received by a first receiver device set to receive transmissions to the first subchannel of the communication channel and the transmitted audio signal is absent from a second receiver device set to receive transmissions to a second subchannel of the communication channel.
13. The computer system of claim 12 , wherein the one or more computer processors are further configured to include a setting enabling the receiver device to receive audio signals transmitted on both the first subchannel and a second subchannel.
14. The computer system of claim 11 , wherein the subchannel of the communication channel includes a guard band of a frequency bandwidth below and above a segment range band of the subchannel bandwidth.
15. The computer system of claim 11 , the one or more computer processors are further configured to:
set the transmitter device to a full bandwidth of the communication channel;
receive a next audio signal at the transmitter device;
determine that the transmitter device is set to the full bandwidth of the communication channel; and
in response to the determining that the transmitter device is set to the full bandwidth of the communication channel, transmit the next audio signal over the full bandwidth of the communication channel.
16. The computer system of claim 15 , wherein the next audio signal is received by a receiver device that is set to the first subchannel of the first portion of the full bandwidth of the communication channel and by a receiver device that is set to a second subchannel of a second portion of the full bandwidth of the communication channel.
17. The computer system of claim 11 , wherein the first portion of the bandwidth of the communication channel and a second portion of the bandwidth of the communication channel include multiple segmented ranges within the bandwidth of the communication channel in which each segmented range is bordered by a guard portion of the communication channel.
18. The computer system of claim 17 , wherein the multiple segmented ranges include, respectively, a guard portion of the bandwidth of the communication channel of at least 10 Hz between segmented ranges, and the segmented ranges of the first subchannel and a second subchannel of the communication channel include a bandwidth of the communication channel of at least 50 Hz, respectively.
19. The computer system of claim 11 , the one or more computer processors are further configured to:
receive at a first transceiver device, the filtered frequency-series waveform transmitted from a second transceiver device to the first subchannel;
convert the frequency-series waveform to the time-series waveform through a series of digital bandpass filters set to receive signals from the first subchannel corresponding to the first portion of the bandwidth of the communication channel; and
in response to determining the first transceiver device is set to the first subchannel of the communication channel, convert by a speaker component of the first transceiver device, the time-series waveform to an audible sound corresponding to the audio signal input to a second transceiver device.
20. A computer-implemented method for audio communication, the computer-implemented method comprising:
setting, by a processor, a receiving device to a first subchannel of a communication channel, wherein the first subchannel comprises a first portion of a bandwidth of the communication channel;
receiving, by the processor, on the receiving device a frequency-series waveform filtered through a series of steep shoulder digital bandpass filters that are set to multiple audible frequency segments corresponding to the first subchannel;
converting, by the processor, the frequency-series waveform to a time-series waveform;
converting, by the processor, the time-series waveform to an audible signal consistent with the multiple audible frequency segments of the bandwidth corresponding to the first subchannel of the communication channel, wherein a respective audible frequency segment includes at least a 50 Hz bandwidth interleaved with other 50 Hz bandwidths of other subchannels within a 300 hertz to 3000 hertz audible bandwidth of the communication channel; and
receiving, by the processor, the audible signal at the receiving device.