Andreas Eversberg
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ca10048e5c
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Rename filter -> iir_filter (file name and instance name)
This is useful when using fir_filter in the future.
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2017-05-15 21:46:32 +02:00 |
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Andreas Eversberg
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8e0d7d2513
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samplerate.c: Allow transcoding to lower sample rate other than 8000 Hz
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2017-03-04 16:52:20 +01:00 |
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Andreas Eversberg
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4c0f8e7e95
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Rework of sample rate conversion by using linear interpolation
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2017-02-18 21:02:51 +01:00 |
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Andreas Eversberg
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7e45f556ce
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Correcting all levels and move all remaining integer samples to sample_t
The leves are based on the standards of each mobile network. They
are adjusted to the specified frequency deviation now.
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2017-02-18 21:01:13 +01:00 |
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Andreas Eversberg
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7ea3bc188d
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Move samples of int16_t format to sample_t, that is of type double
This prepares the correction of all levels
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2017-02-18 21:01:08 +01:00 |
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Andreas Eversberg
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ac0da3f76e
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Filter improvement: LP and HP filters, added test function
The -3 dB level at cut-off frequency is now maintained for multiple
iterations.
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2017-02-18 21:01:04 +01:00 |
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Andreas Eversberg
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713b1ab118
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Rename functions and structure of biquad lowpass filter
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2017-01-07 06:28:23 +01:00 |
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Andreas Eversberg
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4b3e3385b5
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common code: Fix sample rate conversion
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2016-04-24 15:18:59 +02:00 |
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Andreas Eversberg
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9de121109d
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common code: Sample rate conversion now supports any rate above 8000 Hz
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2016-04-17 16:49:39 +02:00 |
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Andreas Eversberg
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946c9ce10a
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initial git import
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2016-03-13 09:12:11 +01:00 |