Experimental new features, testing, and development
Current Version: v0.2.0 Beta
SRX
Standby
Ch. 1:
–
Ch. 2:
–
00:00:00 UTC
DD/MM/YYYY
Input
Ch. 1:
No Signal
Ch. 2:
No Signal
FT6B
Filter/EQ
2000
880
5.00
-6.00
1750
3.00
0.00
3500
5.00
-12.00
1750
3.00
0.00
20000
MT1Level
Meter
Channel 1
Channel 2
SA1Spectrum
Analyser
0
2k
4k
6k
8k
10k
12k
14k
16k
18k
20k
-36
-42
-48
-54
-60
-66
-72
-78
-84
-90
-96
500
SG1Spectrogram
0
2k
4k
6k
8k
10k
12k
14k
16k
18k
20k
-36
-42
-48
-54
-60
-66
-72
-78
-84
-90
CR1Chart
Recorder
Channel 2
0
-3
-6
-9
-12
-15
-18
-21
-24
WR1Waveform
Recorder
500
400
300
200
100
0
-100
-200
-300
-400
-500
SP1Oscilloscope
mV
500
400
300
200
100
0
-100
-200
-300
-400
-500
Channel 1
Off
Pk-Pk
– mV
RMS
– mV
EPD
Laboratories
Channel 2
Pk-Pk
– mV
RMS
– mV
100
0
v0.2.0 Beta
Changelog
20/04/2026
**Player - SRX**
Meter moved to separate module
Volume control only applies to speaker output volume, allows up to +6 dB (200%) gain. Internal signal processing and analysis is always at unity gain to respect the true signal level
Play button replaced with panel style "power" switch
Channel 1 switch added: enable/disable left audio channel routing to speaker output
Channel 2 switch added: enable/disable right audio channel routing to speaker output
Mono/stereo switch added: control speaker output configuration, maintain original audio panning or downmix to mono. Internal signal processing is always stereo
Replaced original display with LCD style display
Channel 1 and Channel 2 info is fetched from the actual live stream data. Info scrolls horizontally if it's too wide to fit in the given space
Display indicates whether a signal is present on the given channel, based on 4 second average audio level (pre-filter). Noise below the threshold is ignored
**Filter - FT6B**
Separate filter/EQ module added for full control over signal filtering
Individual bands can be enabled/disabled
High pass and low pass filters selectable between 12 and 24 dB/oct slope
The whole filter module can be enabled/disabled with the "power" switch
Audio signal is split after filter output. Output 1 sends the signal to the speakers (via channel enable/disable and mono mixdown switches). Output 2 sends the signal to the analysis instruments
**Level Meter - MT1**
Post-filter measurement
Meter now displays the received audio level instead of speaker output volume
Separate meters added for left and right audio channels
Meters now display actual audio signal level in dBFS
**Spectrum Analyser - SA1**
Post-filter measurement
Spectrum analyser now displays true RMS levels
Now uses Blackman window
Knob added to control RMS time averaging. Default = 500ms
Peak-hold knob added. Holds the peak value for the selected time - 0s (off), 0.5s, 1s, 2s, 5s, 10s, 99999s. Default = 0s
**Spectrogram - SG1**
Post-filter measurement
Separated from the spectrum analyser so the spectrogram now works independently
Scrolling UTC timestamps added
Timespan knob added - 15s, 30s, 45s and 60s window. Default = 15s
Per-channel split spectrogram plot when both channels are enabled
**Chart Recorder - CR1**
Post-filter measurement
Chart recorder now records actual audio signal level in dBFS
Scrolling UTC timestamps added
Channel 1 and Channel 2 enable/disable switches added - chart now displays individual traces per channel
Timespan knob added - 15s, 30s, 45s and 60s window. Default = 60s
Pause switch added to freeze the current frame
**Waveform Recorder - WR1**
Waveform recorder added
Post-filter measurement
Reference voltage: 0.447 V peak/0.316 V RMS (−10 dBV) consumer standard line level
Timespan knob - 15s, 30s, 45s, 60s, 90s, 120s and 240s window. Default = 60s
**Oscilloscope - SP1**
Post-filter measurement
Reference voltage: 0.447 V peak/0.316 V RMS (−10 dBV) consumer standard line level
AB/XY mode: Ch. 1 drives the X axis (horizontal), Ch. 2 drives the Y axis (vertical)