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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,178 +1,214 @@ | ||
| NEWS: | ||
|
|
||
| Version 3.1.0 (Jan 19, 2020) | ||
| * SoapySDR: added support for complex float 32-bit samples | ||
| * SoapySDR: allow using AGC if the device supports it. Gain setting for | ||
| soapy devices is now optional - if it's not specified, the program will | ||
| try to enable AGC. | ||
| * Use lowpass/highpass filters provided by LAME library to improve audio | ||
| quality of MP3 streams. Filter cutoff frequencies may be configured per | ||
| output, using `highpass` and `lowpass` config options. Credit: clydebarrow. | ||
| * Added `log_scan_activity` global config option. When set to `true`, a | ||
| log message is written whenever a squelch opens on a scanned channel, | ||
| effectively producing a channel activity log. Credit: clam-i-am. | ||
| * Improved squelch behaviour in some corner cases. | ||
| * Fix for incorrect naming of pulseaudio context. Name set in the config | ||
| was not used as it should. Credit: Darryl Pogue. | ||
| * Don't fail when the configured gain value is negative. Some SDRs support | ||
| this (eg. FC0012-based dongles). | ||
| * Fix a bug which in some cases could prevent the icecast output from | ||
| reconnecting with the Icecast server after the connection has failed. | ||
|
|
||
| Version 3.0.1 (Feb 16, 2018) | ||
| * Fix for squelch staying constantly open when configured manually | ||
| with NFM=off (#84) | ||
| # NEWS | ||
|
|
||
| Version 3.2.0 (Nov 08, 2020): | ||
|
|
||
| * Added `split_per_transmission` output file option which allows creating | ||
| a new file for every transmission on the channel (thx @charlie-foxtrot). | ||
| * Added `include_freq` output file option, which causes the channel frequency | ||
| to be appended to the file name (thx @charlie-foxtrot). | ||
| * Added support for notch filters for eliminating narrowband interference, | ||
| like CTCSS tones (thx @charlie-foxtrot). | ||
| * Added `bandwidth` channel option which causes the channelized I/Q signal | ||
| to be lowpass-filtered before demodulation. This might help in situations | ||
| where neighboring channels are closely spaced and interfere with the channel | ||
| of interest. It also reduces the bandwidth of the resulting audio signal, | ||
| and thus eliminates the high-frequency noise (thx @charlie-foxtrot). | ||
| * Added support for multithreaded demodulation. Each device can now have its | ||
| own demodulation thread. This allows spreading the demodulation work across | ||
| multiple CPU cores. Enable with `multiple_demod_threads` global option | ||
| (thx @charlie-foxtrot). | ||
| * Added support for highpass/lowpass MP3 filters for mixers (thx @charlie-foxtrot) | ||
| * Added support for frequency usage statistics (thx @charlie-foxtrot). | ||
| * Workaround for Fitipower tuner problem of not honoring the first gain | ||
| setting when the device is first used (thx @eshaz). | ||
| * Finalize the MP3 file properly before opening a new one (thx @jratke). | ||
| * Close the RTL device properly on program exit (thx @jratke). | ||
| * Updated the SoapySDR input driver to reflect changes in SoapySDR library API. | ||
| * Minor cleanups. | ||
|
|
||
| Version 3.1.0 (Jan 19, 2020): | ||
|
|
||
| * SoapySDR: added support for complex float 32-bit samples | ||
| * SoapySDR: allow using AGC if the device supports it. Gain setting for | ||
| soapy devices is now optional - if it's not specified, the program will | ||
| try to enable AGC. | ||
| * Use lowpass/highpass filters provided by LAME library to improve audio | ||
| quality of MP3 streams. Filter cutoff frequencies may be configured per | ||
| output, using `highpass` and `lowpass` config options. Credit: clydebarrow. | ||
| * Added `log_scan_activity` global config option. When set to `true`, a | ||
| log message is written whenever a squelch opens on a scanned channel, | ||
| effectively producing a channel activity log. Credit: clam-i-am. | ||
| * Improved squelch behaviour in some corner cases. | ||
| * Fix for incorrect naming of pulseaudio context. Name set in the config | ||
| was not used as it should. Credit: Darryl Pogue. | ||
| * Don't fail when the configured gain value is negative. Some SDRs support | ||
| this (eg. FC0012-based dongles). | ||
| * Fix a bug which in some cases could prevent the icecast output from | ||
| reconnecting with the Icecast server after the connection has failed. | ||
|
|
||
| Version 3.0.1 (Feb 16, 2018): | ||
|
|
||
| * Fix for squelch staying constantly open when configured manually | ||
| with NFM=off (#84) | ||
|
|
||
| Version 3.0.0 (Feb 10, 2018): | ||
| * Major overhaul of the SDR input code - now it's modular and | ||
| hardware-agnostic (no longer tightly coupled with librtlsdr). | ||
| * Support for SoapySDR vendor-neutral SDR library - any SDR which has | ||
| a plugin for SoapySDR shall now work in RTLSDR-Airband. | ||
| * Support for Mirics DVB-T dongles via libmirisdr-4 library. | ||
| * Support for RTLSDR is now optional and can be disabled at compilation | ||
| stage. | ||
| * Removed the 8-channels-per-device limit in multichannel mode. | ||
| * Configurable per-device sampling rate. | ||
| * Configurable FFT size. | ||
| * Support for multibyte input samples. | ||
| * Support for rawfile outputs (ie. writing raw I/Q data from a | ||
| narrowband channel to a file for processing with other programs, | ||
| line GNUradio or csdr). | ||
| * INCOMPATIBLE CHANGE: removed `rtlsdr_buffers` global configuration | ||
| option; buffer count can now be adjusted with a per-device | ||
| "buffers" option. | ||
| * INCOMPATIBLE CHANGE: removed `syslog` global configuration option; | ||
| syslog logging is now enabled by default, both in foreground and | ||
| background mode. To force logging to standard error, use -e command | ||
| line option. | ||
| * Added -F command line option for better cooperation with systemd. | ||
| Runs the program in foreground, but without textual waterfalls. | ||
| Together with -e it allows running rtl_airband as a service of type | ||
| "simple" under systemd. Example rtl_airband.service file has been | ||
| adjusted to reflect this change. | ||
| * Added `type` device configuration option. It sets the device type | ||
| (ie. the input driver which shall be used to talk to the device). | ||
| "rtlsdr" is assumed as a default type for backward compatibility. | ||
| If RTLSDR support has been disabled at compilation stage, then | ||
| there is no default type - it must be set manually, or the program | ||
| will throw an error on startup. | ||
| * Frequencies in the config can now be expressed in Hz, kHz, MHz or GHz | ||
| for improved readability. | ||
| * Lots of bugfixes. | ||
| * Rewritten documentation on [Github Wiki](https://github.com/szpajder/RTLSDR-Airband/wiki). | ||
|
|
||
| * Major overhaul of the SDR input code - now it's modular and | ||
| hardware-agnostic (no longer tightly coupled with librtlsdr). | ||
| * Support for SoapySDR vendor-neutral SDR library - any SDR which has | ||
| a plugin for SoapySDR shall now work in RTLSDR-Airband. | ||
| * Support for Mirics DVB-T dongles via libmirisdr-4 library. | ||
| * Support for RTLSDR is now optional and can be disabled at compilation | ||
| stage. | ||
| * Removed the 8-channels-per-device limit in multichannel mode. | ||
| * Configurable per-device sampling rate. | ||
| * Configurable FFT size. | ||
| * Support for multibyte input samples. | ||
| * Support for rawfile outputs (ie. writing raw I/Q data from a | ||
| narrowband channel to a file for processing with other programs, | ||
| line GNUradio or csdr). | ||
| * INCOMPATIBLE CHANGE: removed `rtlsdr_buffers` global configuration | ||
| option; buffer count can now be adjusted with a per-device | ||
| "buffers" option. | ||
| * INCOMPATIBLE CHANGE: removed `syslog` global configuration option; | ||
| syslog logging is now enabled by default, both in foreground and | ||
| background mode. To force logging to standard error, use -e command | ||
| line option. | ||
| * Added -F command line option for better cooperation with systemd. | ||
| Runs the program in foreground, but without textual waterfalls. | ||
| Together with -e it allows running rtl_airband as a service of type | ||
| "simple" under systemd. Example rtl_airband.service file has been | ||
| adjusted to reflect this change. | ||
| * Added `type` device configuration option. It sets the device type | ||
| (ie. the input driver which shall be used to talk to the device). | ||
| "rtlsdr" is assumed as a default type for backward compatibility. | ||
| If RTLSDR support has been disabled at compilation stage, then | ||
| there is no default type - it must be set manually, or the program | ||
| will throw an error on startup. | ||
| * Frequencies in the config can now be expressed in Hz, kHz, MHz or GHz | ||
| for improved readability. | ||
| * Lots of bugfixes. | ||
| * Rewritten documentation on [Github Wiki](https://github.com/szpajder/RTLSDR-Airband/wiki). | ||
|
|
||
| Version 2.4.0 (Oct 15, 2017): | ||
| * Support for PulseAudio output via new output type `pulse`. With this | ||
| feature you can eg. play the sound via the soundcard of the Raspberry | ||
| Pi you run RTLSDR-Airband on (you need to install and run pulseaudio | ||
| daemon on it, though). Or you can stream the audio from a Pi located | ||
| near the antenna (eg. in the attic) to speakers connected to the desktop | ||
| PC you are sitting at, without launching a local Icecast server, | ||
| as before. Because the audio stream is sent uncompressed, it is | ||
| not recommended to run it across the Internet - jitter or packet loss | ||
| will easily cause the audio to become choppy. However in a local network | ||
| PulseAudio is a good choice. And it gives much lower latency as compared | ||
| to Icecast (typically under 0.5 seconds). Thanks to Marcus Ströbel | ||
| for the idea and initial implementation. | ||
| * Support for referring to RTL devices by their serial numbers in the | ||
| config file. Instead of `index = <dongle_index>` parameter, use `serial = | ||
| <dongle_serial_number>` to get consistent behavior across reboots | ||
| and hardware reconfigurations. | ||
| * Set RTL gain to the nearest gain value supported by the device. This is | ||
| required for E4000 tuners, which do not round the given gain value to | ||
| the nearest supported setting, which causes the gain setting operation | ||
| to fail. | ||
| * Improved squelch operation in scan mode. All squelch-related variables | ||
| (noise floor, AGC coefficients, etc) are now calculated and stored | ||
| separately for each scanned channel. Earlier their values were common | ||
| to all channels, which caused squelch problems in case when noise floor | ||
| varied considerably between channels. Thanks to @strix-technica. | ||
| * Added build target for FreeBSD on x86. Use `PLATFORM=x86-freebsd` to | ||
| compile and `PLATFORM=x86-freebsd gmake install` to install. Thanks | ||
| to @nyammy. | ||
| * Display squelch setting in waterfall in place of noise floor value when | ||
| squelch is set manually. | ||
| * Bug fixes, performance improvements. | ||
| * Decluttered and more understandable documentation. | ||
|
|
||
| * Support for PulseAudio output via new output type `pulse`. With this | ||
| feature you can eg. play the sound via the soundcard of the Raspberry | ||
| Pi you run RTLSDR-Airband on (you need to install and run pulseaudio | ||
| daemon on it, though). Or you can stream the audio from a Pi located | ||
| near the antenna (eg. in the attic) to speakers connected to the desktop | ||
| PC you are sitting at, without launching a local Icecast server, | ||
| as before. Because the audio stream is sent uncompressed, it is | ||
| not recommended to run it across the Internet - jitter or packet loss | ||
| will easily cause the audio to become choppy. However in a local network | ||
| PulseAudio is a good choice. And it gives much lower latency as compared | ||
| to Icecast (typically under 0.5 seconds). Thanks to Marcus Ströbel | ||
| for the idea and initial implementation. | ||
| * Support for referring to RTL devices by their serial numbers in the | ||
| config file. Instead of `index = <dongle_index>` parameter, use `serial = | ||
| <dongle_serial_number>` to get consistent behavior across reboots | ||
| and hardware reconfigurations. | ||
| * Set RTL gain to the nearest gain value supported by the device. This is | ||
| required for E4000 tuners, which do not round the given gain value to | ||
| the nearest supported setting, which causes the gain setting operation | ||
| to fail. | ||
| * Improved squelch operation in scan mode. All squelch-related variables | ||
| (noise floor, AGC coefficients, etc) are now calculated and stored | ||
| separately for each scanned channel. Earlier their values were common | ||
| to all channels, which caused squelch problems in case when noise floor | ||
| varied considerably between channels. Thanks to @strix-technica. | ||
| * Added build target for FreeBSD on x86. Use `PLATFORM=x86-freebsd` to | ||
| compile and `PLATFORM=x86-freebsd gmake install` to install. Thanks | ||
| to @nyammy. | ||
| * Display squelch setting in waterfall in place of noise floor value when | ||
| squelch is set manually. | ||
| * Bug fixes, performance improvements. | ||
| * Decluttered and more understandable documentation. | ||
|
|
||
| Version 2.3.0 (Jan 2, 2017): | ||
| * Added support for mixers. It is now possible to produce audio streams | ||
| combined from several input channels. Both mono and stereo mixing is | ||
| supported. Usage example is provided in config/mixers.conf. All | ||
| mixer-related parameters are documented in config/reference.conf. | ||
| * Added build options for 64-bit ARM architectures, like Odroid C2. | ||
| Please use PLATFORM=armv8-generic when compiling. | ||
| * Fixed a long-standing bug in RTL sample processing, which caused some | ||
| samples to be processed twice. If you were annoyed by these regular | ||
| clicks in NFM audio every 125 ms, they are now gone. | ||
| * Reduced CPU usage on x86 | ||
| * Some code restructuring and cleanups | ||
| * Added several configuration file examples for typical real-life | ||
| scenarios. They are placed in config/ subdirectory. rtl_airband.conf.example | ||
| file has been moved to config/reference.conf. It is meant to be a reference | ||
| for all supported config knobs together with their description. This is | ||
| still an interim solution before some more readable and understandable | ||
| documentation gets written. | ||
|
|
||
| * Added support for mixers. It is now possible to produce audio streams | ||
| combined from several input channels. Both mono and stereo mixing is | ||
| supported. Usage example is provided in config/mixers.conf. All | ||
| mixer-related parameters are documented in config/reference.conf. | ||
| * Added build options for 64-bit ARM architectures, like Odroid C2. | ||
| Please use PLATFORM=armv8-generic when compiling. | ||
| * Fixed a long-standing bug in RTL sample processing, which caused some | ||
| samples to be processed twice. If you were annoyed by these regular | ||
| clicks in NFM audio every 125 ms, they are now gone. | ||
| * Reduced CPU usage on x86 | ||
| * Some code restructuring and cleanups | ||
| * Added several configuration file examples for typical real-life | ||
| scenarios. They are placed in config/ subdirectory. rtl_airband.conf.example | ||
| file has been moved to config/reference.conf. It is meant to be a reference | ||
| for all supported config knobs together with their description. This is | ||
| still an interim solution before some more readable and understandable | ||
| documentation gets written. | ||
|
|
||
| Version 2.2.0 (Oct 8, 2016): | ||
| * Support for Icecast stream metadata updates in scanning mode. When enabled, | ||
| every time the scanner stops on a channel, current frequency is written into | ||
| Icecast song title, which in turn is displayed in the player. Alternatively, | ||
| textual labels can be configured for each frequency. It is possible | ||
| to configure the amount of delay between the stream and metadata updates to | ||
| synchronize them with the audio. There are some caveats however - read | ||
| comments in rtl_airband.conf.example for details. | ||
| * Added global option 'localtime'. When enabled, rtl_airband uses local time | ||
| instead of UTC time for output file names. (Credit: ScanOC). | ||
| * Auto gain feature removed. RTL auto gain does not work well for narrowband | ||
| channels. Most often it sets the gain too high which causes problems for | ||
| auto squelch and audio bleeding between adjacent channels. Gain must be | ||
| configured manually from now on. | ||
| * Dropped unmaintained Windows build. | ||
| * Reverted to power level calculation algorithm from version 2.0.2. The new | ||
| algo didn't really do much to sensitivity, but introduced annoying clicks | ||
| on squelch open/close. | ||
| * Improved DC offset estimator for AM mode. This one hardly ever clicks | ||
| on squelch opening. | ||
| * Boosted AM audio volume. | ||
| * Reduced squelch flapping in NFM mode. | ||
|
|
||
| * Support for Icecast stream metadata updates in scanning mode. When enabled, | ||
| every time the scanner stops on a channel, current frequency is written into | ||
| Icecast song title, which in turn is displayed in the player. Alternatively, | ||
| textual labels can be configured for each frequency. It is possible | ||
| to configure the amount of delay between the stream and metadata updates to | ||
| synchronize them with the audio. There are some caveats however - read | ||
| comments in rtl_airband.conf.example for details. | ||
| * Added global option 'localtime'. When enabled, rtl_airband uses local time | ||
| instead of UTC time for output file names. (Credit: ScanOC). | ||
| * Auto gain feature removed. RTL auto gain does not work well for narrowband | ||
| channels. Most often it sets the gain too high which causes problems for | ||
| auto squelch and audio bleeding between adjacent channels. Gain must be | ||
| configured manually from now on. | ||
| * Dropped unmaintained Windows build. | ||
| * Reverted to power level calculation algorithm from version 2.0.2. The new | ||
| algo didn't really do much to sensitivity, but introduced annoying clicks | ||
| on squelch open/close. | ||
| * Improved DC offset estimator for AM mode. This one hardly ever clicks | ||
| on squelch opening. | ||
| * Boosted AM audio volume. | ||
| * Reduced squelch flapping in NFM mode. | ||
|
|
||
| Version 2.1.0 (Aug 11, 2016): | ||
| * Narrowband FM demodulation support | ||
| * Automatic Frequency Control | ||
| * Append mode for recording (enabled by default) | ||
| * Dongles, channels and outputs can be individually enabled and disabled | ||
| by a simple config flag (no need to comment out or delete large | ||
| configuration sections) | ||
| * Use VBR for MP3 encoding | ||
| * Modified power level calculation algorithm (better sensitivity) | ||
| * Support for manual squelch setting | ||
| * Bug fixes | ||
|
|
||
| * Narrowband FM demodulation support | ||
| * Automatic Frequency Control | ||
| * Append mode for recording (enabled by default) | ||
| * Dongles, channels and outputs can be individually enabled and disabled | ||
| by a simple config flag (no need to comment out or delete large | ||
| configuration sections) | ||
| * Use VBR for MP3 encoding | ||
| * Modified power level calculation algorithm (better sensitivity) | ||
| * Support for manual squelch setting | ||
| * Bug fixes | ||
|
|
||
| Version 2.0.2 (Mar 26, 2016): | ||
| * Fixed a problem with running three dongles or more, simultaneously | ||
|
|
||
| * Fixed a problem with running three dongles or more, simultaneously | ||
|
|
||
| Version 2.0.1 (Jan 24, 2016): | ||
| * Fixed crash on output initialization | ||
|
|
||
| * Fixed crash on output initialization | ||
|
|
||
| Version 2.0.0 (Dec 27, 2015): | ||
| * New libconfig-style config file format | ||
| * util/convert_cfg: can be used to convert old-style config.txt to the new format | ||
| * Syslog logging (enabled by default) | ||
| * Daemon mode | ||
| * Reworked makefiles, added install rule | ||
| * /dev/vcio is now used to access GPU on RPi; creating char_dev no longer necessary | ||
| * Startup scripts for Debian and Gentoo | ||
| * Support for auto gain setting | ||
| * Support for multiple outputs per channel | ||
| * Support for recording streams to local MP3 files | ||
| * Support for ARMv7-based platforms other than RPi (eg. Cubieboard) | ||
| * Updated documentation | ||
| * Numerous bugfixes and stability improvements | ||
|
|
||
| * util/convert_cfg: can be used to convert old-style config.txt to the new format | ||
| * Syslog logging (enabled by default) | ||
| * Daemon mode | ||
| * Reworked makefiles, added install rule | ||
| * /dev/vcio is now used to access GPU on RPi; creating char_dev no longer necessary | ||
| * Startup scripts for Debian and Gentoo | ||
| * Support for auto gain setting | ||
| * Support for multiple outputs per channel | ||
| * Support for recording streams to local MP3 files | ||
| * Support for ARMv7-based platforms other than RPi (eg. Cubieboard) | ||
| * Updated documentation | ||
| * Numerous bugfixes and stability improvements | ||
|
|
||
| Version 1.0.0 (May 12, 2015): | ||
| * Linux x86/x86_64 support (Windows build is currently unmaintained and might not work) | ||
| * Raspberry Pi V2 support | ||
| * Bundled hello_fft code (v2.0) | ||
| * More robust interaction with Icecast servers | ||
| * Important stability fixes | ||
|
|
||
| * Linux x86/x86_64 support (Windows build is currently unmaintained and might not work) | ||
| * Raspberry Pi V2 support | ||
| * Bundled hello_fft code (v2.0) | ||
| * More robust interaction with Icecast servers | ||
| * Important stability fixes |
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