diff options
Diffstat (limited to 'configs/chan_dahdi.conf.sample')
| -rw-r--r-- | configs/chan_dahdi.conf.sample | 68 |
1 files changed, 45 insertions, 23 deletions
diff --git a/configs/chan_dahdi.conf.sample b/configs/chan_dahdi.conf.sample index 63be70d71..7eb270b9a 100644 --- a/configs/chan_dahdi.conf.sample +++ b/configs/chan_dahdi.conf.sample @@ -808,32 +808,54 @@ echocancelwhenbridged=yes ; ;relaxdtmf=yes ; -; You may also set the default receive and transmit gains (in dB) -; -; Gain Settings: increasing / decreasing the volume level on a channel. -; The values are in db (decibells). A positive number -; increases the volume level on a channel, and a -; negavive value decreases volume level. -; -; Dynamic Range Compression: you can also enable dynamic range compression -; on a channel. This will amplify quiet sounds while leaving -; louder sounds untouched. This is useful in situations where -; a linear gain setting would cause clipping. Acceptable values -; are in the range of 0.0 to around 6.0 with higher values -; causing more compression to be done. -; -; There are several independent gain settings: -; rxgain: gain for the rx (receive - into Asterisk) channel. Default: 0.0 -; txgain: gain for the tx (transmit - out of Asterisk Asterisk) channel. -; Default: 0.0 -; cid_rxgain: set the gain just for the caller ID sounds Asterisk -; emits. Default: 5.0 . -; rxdrc: dynamic range compression for the rx channel. Default: 0.0 -; txdrc: dynamic range compression for the tx channel. Default: 0.0 - +; Hardware gain settings increase/decrease the analog volume level on a channel. +; The values are in db (decibels) and can be adjusted in 0.1 dB increments. +; A positive number increases the volume level on a channel, and a negavive +; value decreases volume level. +; +; Hardware gain settings are only possible on hardware with analog ports +; because the gain is done on the analog side of the analog/digital conversion. +; +; When hardware gains are disabled, Asterisk will NOT touch the gain setting +; already configured in hardware. +; +; hwrxgain: Hardware receive gain for the channel (into Asterisk). +; Default: disabled +; hwtxgain: Hardware transmit gain for the channel (out of Asterisk). +; Default: disabled +; +;hwrxgain=disabled +;hwtxgain=disabled +;hwrxgain=2.0 +;hwtxgain=3.0 +; +; Software gain settings digitally increase/decrease the volume level on a channel. +; The values are in db (decibels). A positive number increases the volume +; level on a channel, and a negavive value decreases volume level. +; +; Software gains work on the digital side of the analog/digital conversion +; and thus can also work with T1/E1 cards. +; +; rxgain: Software receive gain for the channel (into Asterisk). Default: 0.0 +; txgain: Software transmit gain for the channel (out of Asterisk). +; Default: 0.0 +; +; cid_rxgain: Add this gain to rxgain when Asterisk expects to receive +; a Caller ID stream. +; Default: 5.0 . +; ;rxgain=2.0 ;txgain=3.0 ; +; Dynamic Range Compression: You can also enable dynamic range compression +; on a channel. This will digitally amplify quiet sounds while leaving louder +; sounds untouched. This is useful in situations where a linear gain setting +; would cause clipping. Acceptable values are in the range of 0.0 to around +; 6.0 with higher values causing more compression to be done. +; +; rxdrc: dynamic range compression for the rx channel. Default: 0.0 +; txdrc: dynamic range compression for the tx channel. Default: 0.0 +; ;rxdrc=1.0 ;txdrc=4.0 ; |