From d4374ab4ab90d515a4fd246b59a4056fb6d95756 Mon Sep 17 00:00:00 2001 From: gchini Date: Mon, 26 Jul 2021 19:46:09 +0000 Subject: --- Software/PulseAudio/Notes/15.0.mdwn | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Software/PulseAudio/Notes/15.0.mdwn') diff --git a/Software/PulseAudio/Notes/15.0.mdwn b/Software/PulseAudio/Notes/15.0.mdwn index 282d1019..11672e6a 100644 --- a/Software/PulseAudio/Notes/15.0.mdwn +++ b/Software/PulseAudio/Notes/15.0.mdwn @@ -8,7 +8,7 @@ ### Support for LDAC and AptX bluetooth codecs, plus so-called "SBC XQ" (SBC with higher-quality parameters) -PulseAudio now supports the LDAC and AptX codecs for A2DP. In order to use them, the device has to support the codecs too. Also "XQ" configuration variants for the old SBC codec are available. The SBC XQ variants have a fixed (and higher than the "normal" SBC) bitrate, so they may have more drop-outs if the wireless connection is bad, but on the hand the quality is always good if the connection is good. For variable bitrate, pulseaudio is now able to increase the bitrate again after it was reduced due to connectivity issues. +PulseAudio now supports the LDAC and AptX codecs for A2DP. In order to use them, the device has to support the codecs too. Also "XQ" configuration variants for the old SBC codec are available. The SBC XQ variants have a fixed (and higher than the "normal" SBC) bitrate, so they may have more drop-outs if the wireless connection is bad, but on the other hand the quality is always good if the connection is good. For variable bitrate, pulseaudio is now able to increase the bitrate again after it was reduced due to connectivity issues. Switching the codec can be done on the command line with `pactl send-message /card/bluez_card.XX_XX_XX_XX_XX_XX/bluez switch-codec CODEC`. Replace `XX_XX_XX_XX_XX_XX` with the device address, which can be found for example with `LANG=C pactl list cards | grep Name`. Replace `CODEC` with one of the available codec names: `aptx`, `aptx_hd`, `ldac_hq` ("High Quality"), `ldac_sq` ("Standard Quality"), `ldac_mq` ("Mobile Quality"), `sbc`, `sbc_xq_453`, `sbc_xq_512`, `sbc_xq_552`. A list of codecs supported by the device can be obtained with `pactl send-message /card/bluez_card.XX_XX_XX_XX_XX_XX/bluez list-codecs` and the currently active codec can be queried with `pactl send-message /card/bluez_card.XX_XX_XX_XX_XX_XX/bluez get-codec`. A simplified way of switching codecs is already implemented in pavucontrol and will be provided with the next pavucontrol release. -- cgit v1.2.3