From aab63ef382a98dd47bd9c41338ab852dc84a725d Mon Sep 17 00:00:00 2001 From: Andre Date: Fri, 5 May 2006 14:30:57 +0200 Subject: [PATCH] compress: Adjust forumla for clipping Use (3 * old + min) / 4 instead of (old + min) / 2 as the new gain if clipping occures. --- compress.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/compress.c b/compress.c index b4e4c40a..3e605d0e 100644 --- a/compress.c +++ b/compress.c @@ -67,8 +67,8 @@ static ssize_t compress(char *inbuf, size_t inbuf_len, struct filter_node *fn) >> gain_shift; if (unlikely(adjusted_sample > 32767)) { adjusted_sample = 32767; - pcd->current_gain = (pcd->current_gain + - (1 << pcd->conf->inertia_arg)) / 2; + pcd->current_gain = (3 * pcd->current_gain + + (1 << pcd->conf->inertia_arg)) / 4; pcd->peak = 0; } else if (adjusted_sample > pcd->peak) @@ -78,8 +78,8 @@ static ssize_t compress(char *inbuf, size_t inbuf_len, struct filter_node *fn) >> gain_shift); if (unlikely(adjusted_sample < -32768)) { adjusted_sample = -32768; - pcd->current_gain = (pcd->current_gain + - (1 << pcd->conf->inertia_arg)) / 2; + pcd->current_gain = (3 * pcd->current_gain + + (1 << pcd->conf->inertia_arg)) / 4; pcd->peak = 0; } else if (-adjusted_sample > pcd->peak) -- 2.39.5