Scheme ii . a scheme based on acoustic system recongniton and adaptive filter . compared with the traditional adaptive feedback suppressor , this system has been added a new component , the residual echo suppressor component 與傳統(tǒng)的自適應(yīng)的方法比較,增加了系統(tǒng)識別和駐波抑制的相關(guān)模塊,一定程度的提高了傳聲增益。
An echo suppressor or acoustic echo suppressor is a telecommunications device used to reduce the echo heard on long telephone circuits, particularly circuits that traverse satellite links. Echo suppressors were developed in the 1950s in response to the first use of satellites for telecommunications, but they have since been largely supplanted by better performing echo cancellers.