compression ratio in compressor function:
8 ビュー (過去 30 日間)
古いコメントを表示
hallo all,
Is there a way that one could interpret the compression ratio in the compressor.
it value varies from 1 to 50,
From the MATLAB page: the compression ratio is defined as R=(x[n]−T)(y[n]−T).
But: in the example:
drc = compressor(-15,5);
visualize(drc);
%How can we recaluculate (to know) what was the compression ratio from the graph?
Is the compreesion ratio (standard) the slope i.e the dofference between Inputs/Outputs??
can one give an example?
thanks a lot
0 件のコメント
採用された回答
Charlie DeVane
2019 年 4 月 24 日
Hi Khaled,
Looking at the static characteristic (input/output graph), the ratio R is the reciprocal of the slope above the threshold. (Below the threshold the slope is 1.) In the doc example, above threshold the output increases 3 dB for a 15 dB increase in input, so the slope is 3/15 = 0.2. The ratio is the reciprocal of that: 15/3 = 5.
In the doc for compressor you can find the equation for the static characteristic above threshold, where you can see that the slope is 1/R:
hth,
Charlie
1 件のコメント
khaled hassan
2019 年 5 月 20 日
Thanks Charlie!!
do you know if there is a way to have several knee points: thresholds for one compresso rin MATLAB?
best wishes,
Khaled
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で ECG / EKG についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!