I've been experimenting with recording at >16 bit depths (Midiman Audiophile and current ALSA CVS).
Since 24-bit files are a right-royal-pain and the ALSA hw device for ice1712 uses a format of S32_LE, I've been recording to 32-bit .wav files, using both arecord and snd (built with native alsa 0.9x support). Both produce valid wav files, however there is one awkward difference: there's a factor of 256 difference between the scaling, so files recorded in snd are inaudible if played back by aplay and files recorded by arecord are very clipped when viewed in snd. Both have only 24 significant bits (I'd be worried if it were otherwise). Is there any general consensus as to which is the *right* thing to do? I can certainly see that there are valid arguments for both ways of mapping 24 bits into 32. (Actually I'm rather surprised that the choice is the way round that it is since snd uses floats internally (?) so how does it know that the card is really generating 24-bits?). James -- +------------------------+-------------------------------+---------+ | James Tappin | School of Physics & Astronomy | O__ | | [EMAIL PROTECTED] | University of Birmingham | -- \/` | | Ph: 0121-414-6462. Fax: 0121-414-3722 | | +--------------------------------------------------------+---------+ _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
