Open Sound System

If OSS appends to each sample eight zero bits which are then ignored by the hardware, why would this have any effect on bitperfectness? What is odd is that through Xonar ST digital coax out, 24-bit files are being truncated to 16-bit e.g. 24/(any samplerate) is being played back and displayed on an...

Does playing a 24-bit file through 'ossplay' (any samplerate) play back through S24_LE: $ ossplay -Rvvvv example-24-bit.wav ... Playing WAVE file 2496.wav, 24 bits Setup device S24_LE ... Or does the file play back through S32_LE: $ ossplay -Rvvvv example-24-bit.wav ... Playing WAVE file 2496.wav, 2...

$ sudo ln -sf /dev/oss/oss_cmi878x0/pcm1 /dev/dsp ...and saving the /dev/dsp setting in /usr/lib/oss/etc/legacy_devices did the trick (S/PDIF is now the default output device)... However the issue with not being able to play 24/32-bit files as referenced in ASUS Xonar ST Not Working? persists: 1. A...

Will do...When I get another DAC in towards the end of January 2012...

$ ossinfo Version info: OSS 4.2 (b 2006/201112160254) (0x00040100) OSS_HG Hg revision: changeset: 942:08a6a3839e88, tag: tip, date: Sat Nov 05 03:31:20 2011 +0200, summary: Fixes for CMedia 8788 Platform: Linux/x86_64 3.1.5-1-ARCH #1 SMP PREEMPT Sat Dec 10 14:43:09 CET 2011 (BeagleSnuf) Number of a...

1. Question The board has an optical output and a coax digital output. But I didn't find an option in ossmix for spdif. I wanted to use oss for that thing, because on my other computer (Xonar DS) I can configure the bit rate to 192 khz for spdif. Is there a chance to configure the ALC-662 for spdif...

Verify bit/samplerate of a DVD-A audio track... $ ffmpeg -i /mnt/VIDEO_TS/VTS_04_1.VOB ... Input #0, mpeg, from '/mnt/VIDEO_TS/VTS_04_1.VOB': Duration: 00:19:54.69, start: 0.233567, bitrate: 7190 kb/s Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [SAR 32:27 DAR 16:9], 5000 kb/s, 29....

Use pcm_conv to create a test file... $ pcm_conv People.Are.Strange.wav -f 48000 24-48000.wav ================================================================= Module Info: Short name: WAVE PCM Converter Long name : Convert PCM format for WAVE files Copyright : Copyright (c) 2009-10 PetrovSE Version...

Ran into an issue with 24/96 files which played perfectly well on the STX ... It appears that vmix is indeed disabled :) (via --config-vmix=NO + osscore.conf)... $ ossmix -a | grep -i vmix $ Verify bit/samplerate of 24/96... $ soxi People.Are.Strange.flac Input File : 'People.Are.Strange.flac' Chann...

Unsure as to how to test if the hardware is upsampling... Is there a more appropriate testing methodology I can perform? (All 16/44.1 sound files are played back without issue...) Verify vmix disabled... $ ossinfo -x Mixer devices 0: CMedia CMI8788 (Mixer 0 of device object 1) 1: AC97 Input Mixer (C...

A shout out to Dev Mazumdar who updated the hg sources for the ST...Line out A-OK... Will continue to test :) ... $ osstest Sound subsystem and version: OSS 4.2 (b 2006/201111012340) (0x00040100) Platform: Linux/x86_64 3.0-BFS #1 SMP PREEMPT Sun Oct 23 06:17:16 PDT 2011 *** Scanning sound adapter #-...

Excellent, thank you.

What does the 'ext.monitor.analog' option do? Sound plays through the analog line outs regardless of ON, or OFF. $ ossmix Selected mixer 0/CMedia CMI8788 Known controls are: ext.monitor.analog ON|OFF (currently ON) Does the 'spdif-out.adc/dac' option affect the analog path in any way (I presume not)...

The ST is their top audiophile card (released approximately two years ago). Changes from the STX include a PCI interface, a Cirrus Logic (CS2000) XO clean up chip (and its associated caps) and an interface for a daughter board for 7.1.

Thanks, cladisch...I was suspecting the clock chip...Hoping support for the CS2000 is forthcoming, else another soundcard return...