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Use channel sample rate of 48k in RTTY and PSK31 mods, to reduce filter taps at high baseband sample rates.

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This commit is contained in:
Jon Beniston 2023-10-27 17:41:48 +01:00
parent 1d3c366c9a
commit 7126fb9c14
2 changed files with 4 additions and 2 deletions
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3
plugins/channeltx/modpsk31/psk31modbaseband.cpp
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@ -185,7 +185,8 @@ void PSK31Baseband::applySettings(const PSK31Settings& settings, bool force)
{ {
if ((settings.m_inputFrequencyOffset != m_settings.m_inputFrequencyOffset) || force) if ((settings.m_inputFrequencyOffset != m_settings.m_inputFrequencyOffset) || force)
{ {
m_channelizer->setChannelization(m_channelizer->getChannelSampleRate(), settings.m_inputFrequencyOffset); // Use fixed sample rate of 48000, so Cosine filter doesn't have a massive number of taps at high baseband sample rates (See #1862)
m_channelizer->setChannelization(48000, settings.m_inputFrequencyOffset);
m_source.applyChannelSettings(m_channelizer->getChannelSampleRate(), m_channelizer->getChannelFrequencyOffset()); m_source.applyChannelSettings(m_channelizer->getChannelSampleRate(), m_channelizer->getChannelFrequencyOffset());
} }

3
plugins/channeltx/modrtty/rttymodbaseband.cpp
View File

@ -185,7 +185,8 @@ void RttyModBaseband::applySettings(const RttyModSettings& settings, bool force)
{ {
if ((settings.m_inputFrequencyOffset != m_settings.m_inputFrequencyOffset) || force) if ((settings.m_inputFrequencyOffset != m_settings.m_inputFrequencyOffset) || force)
{ {
m_channelizer->setChannelization(m_channelizer->getChannelSampleRate(), settings.m_inputFrequencyOffset); // Use fixed sample rate of 48000, so Cosine filter doesn't have a massive number of taps at high baseband sample rates (See #1862)
m_channelizer->setChannelization(48000, settings.m_inputFrequencyOffset);
m_source.applyChannelSettings(m_channelizer->getChannelSampleRate(), m_channelizer->getChannelFrequencyOffset()); m_source.applyChannelSettings(m_channelizer->getChannelSampleRate(), m_channelizer->getChannelFrequencyOffset());
} }