| commit | 4218fdd77f1c8ab4dab5ced30c3a0db946a6f04c | |
| author | Volker Rümelin <vr_qemu@t-online.de> | |
| Sun, 8 Mar 2020 19:33:19 +0000 (8 20:33 +0100) | ||
| committer | Gerd Hoffmann <kraxel@redhat.com> | |
| Mon, 16 Mar 2020 09:18:07 +0000 (16 10:18 +0100) | ||
| tree | 745497ef3f568102766610a444c73773f440532b | treesnapshot (tar.gz zip) |
| parent | 33a93baeae4ca8f03a84b194c55f6e5ee09c33f8 | commitdiff |
audio: change mixing engine float range to [-1.f, 1.f]
Currently the internal float range of the mixing engine is
[-.5f, .5f]. PulseAudio, SDL2 and libasound use a [-1.f, 1.f]
range. This means with float samples the audio playback volume
is 6dB too low and audio recording signals will be clipped in
most cases.
To avoid another scaling factor in the conv_natural_float_* and
clip_natural_float_* functions with FLOAT_MIXENG defined this
patch changes the mixing engine float range to [-1.f, 1.f].
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-id: 20200308193321.20668-4-vr_qemu@t-online.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently the internal float range of the mixing engine is
[-.5f, .5f]. PulseAudio, SDL2 and libasound use a [-1.f, 1.f]
range. This means with float samples the audio playback volume
is 6dB too low and audio recording signals will be clipped in
most cases.
To avoid another scaling factor in the conv_natural_float_* and
clip_natural_float_* functions with FLOAT_MIXENG defined this
patch changes the mixing engine float range to [-1.f, 1.f].
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-id: 20200308193321.20668-4-vr_qemu@t-online.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| audio/mixeng.c | diffblobblamehistory | |
| audio/mixeng_template.h | diffblobblamehistory |