Denny Sheirer 248fe3e4f7 #2526 Polyphase Channelizer gain imbalance across synthesis of two adjacent channels. (#2527) ...

- Fix two-channel synthesis asymmetry across polyphase channel boundaries.
- TwoChannelSynthesizerM2: replace incorrect 2-path polyphase split (which applied
  different responses to each channel) with channel sum + prototype filter
  modulated to the channel boundary (+FS/4).
- ComplexPolyphaseChannelizerM2: start on the middle block map when taps per
  channel is odd so adjacent channel outputs are phase coherent.
- TwoChannelOutputProcessor: translate channel 2 by FS/2 using the absolute
  block index parity derived from the even-sized dispatch batches.
- SynthesizerViewer: translate channel 2 before synthesis.
- Add TwoChannelSynthesizerM2Test for flat, symmetric boundary response.

Co-authored-by: denny <dennis.sheirer@gmail.com>

2026-10-29 08:51:37 -04:00

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alias

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audio

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bits

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channel

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controller

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dsp

#2526 Polyphase Channelizer gain imbalance across synthesis of two adjacent channels. (#2527)

2026-10-29 08:51:37 -04:00

edac

#2524 P25P2 Decoder enhancements (#2525)

2026-10-29 07:32:17 -04:00

eventbus

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filter

#7 NXDN Decoder support. Redesigns tuner and channel frequency error management. (#2431)

2026-07-08 03:44:08 -04:00

gui

#2526 Polyphase Channelizer gain imbalance across synthesis of two adjacent channels. (#2527)

2026-10-29 08:51:37 -04:00

icon

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identifier

NBFM Channel level CTCSS/DCS and audio features (#2425)

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jmbe

#2487 JMBE creator adds diagnostic logging (#2488)

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log

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map

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message

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module

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monitor

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playlist

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preference

Dark mode (#2411)

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properties

#1960 application root directory not found on fresh install (#1961)

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protocol

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record

#7 NXDN Decoder support. Redesigns tuner and channel frequency error management. (#2431)

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sample

#2212 Introduce carrier offset measurement processor to monitor a 12.5 kHz channel and provide estimated carrier offset measurements that allow the tuner's frequency error monitor to correct for the average error reported from each channel. Uses a 15 dB threshold where the signal must be at least 15 dB above the noise floor before it will calculate and broadcast the estimate. Stores the updated PPM in the tuner configuration after each update to ensure the value persists across sessions. When selected in the tuner panel, updates the displayed PPM value after each PPM autocorrection. (#2218)

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service/radioreference

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settings

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source

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spectrum

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util

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vector

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