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- MPX_filter abstract "MPX filter is a function found in cassette decks.FM stereo broadcasts contain a pilot tone at 19 kHz that indicates stereo information is available at higher frequencies (this system was developed jointly by Zenith and General Electric). The normal monaural audio, the pilot tone (which serves as a phase reference when decoding the stereographic information) and the double sideband stereographic information, are all multiplexed together.The high-frequency components of the resulting multiplexed signal can be problematic when recording to analog magnetic media. While the higher frequencies are unlikely to survive filtering in the recording deck, the 19 kHz tone is within the 20 to 20,000 Hz frequency range for many tape formats, including compact cassette. As such, some of the tape will be saturated by the pilot tone, and recording and playback of lower frequencies may be adversely affected.MPX filter is effectively a notch filter that will block the 19 kHz guard tone. The difference should be heard by recording from an FM stereo source and engaging and disengaging the MPX filter switch. On a three-head deck with monitoring, this can be heard while recording. The filter should not be engaged when recording from other sources, such as Compact Disc. The setting of the switch should have no effect during playback.".
- MPX_filter wikiPageID "8160693".
- MPX_filter wikiPageRevisionID "597177759".
- MPX_filter hasPhotoCollection MPX_filter.
- MPX_filter subject Category:Linear_filters.
- MPX_filter subject Category:Multiplexing.
- MPX_filter subject Category:Tone,_EQ_and_filter.
- MPX_filter subject Category:Wireless_tuning_and_filtering.
- MPX_filter type Artifact100021939.
- MPX_filter type Device103183080.
- MPX_filter type Filter103339643.
- MPX_filter type Instrumentality103575240.
- MPX_filter type LinearFilters.
- MPX_filter type Object100002684.
- MPX_filter type PhysicalEntity100001930.
- MPX_filter type Whole100003553.
- MPX_filter comment "MPX filter is a function found in cassette decks.FM stereo broadcasts contain a pilot tone at 19 kHz that indicates stereo information is available at higher frequencies (this system was developed jointly by Zenith and General Electric).".
- MPX_filter label "MPX filter".
- MPX_filter label "MPX-Filter".
- MPX_filter sameAs MPX-Filter.
- MPX_filter sameAs m.026ts2r.
- MPX_filter sameAs Q1881781.
- MPX_filter sameAs Q1881781.
- MPX_filter sameAs MPX_filter.
- MPX_filter wasDerivedFrom MPX_filter?oldid=597177759.
- MPX_filter isPrimaryTopicOf MPX_filter.