Opened 15 years ago
Closed 15 years ago
Last modified 15 years ago
#8408 closed enhancement (wontfix)
24-bit audio support
Reported by: | anonymous | Owned by: | JYA |
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Priority: | minor | Milestone: | unknown |
Component: | MythTV - Audio Output | Version: | Unspecified |
Severity: | medium | Keywords: | |
Cc: | Ticket locked: | no |
Description
Here's a patch for 32-bit audio support on NVIDIA Geforce 8300 mGPU and GT2XX cards. The patch needs more work to play nicely with other audio configurations. In particular, encoding to Dolby Digital is desirable when 32-bit audio isn't available.
ALSA 1.0.23 must be installed for the GT2XX to work. On the NVIDIA GeForce? 8300 mGPU, the channel order is in SMPTE not ALSA so a remap is needed. On Mythbuntu 9.10, the PCM buffer defaults to 64KB which isn't enough for reliable audio playback. To get a buffer of 400 ms, I suggest:
echo 512 > /proc/asound/card1/pcm7p/sub0/prealloc
Attachments (1)
Change History (4)
Changed 15 years ago by
Attachment: | mythtv_lpcm.patch added |
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comment:1 Changed 15 years ago by
Resolution: | → wontfix |
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Status: | new → closed |
Thanks. But 24/32 bits audio support is already done, and not just for ALSA. It will be added to trunk within the next few days.