[linux-audio-user] Trouble running Jack with Emagic Emi 6|2m

Hi, I am having a bit of trouble running Jack with the Emagic Emi 6|2m USB audio box. The device works well with 2 inputs and 2 outputs at 96/24 or less. It also works well with all 6 inputs and 2 outputs at 44.1/16. Starting Jack makes the Emi correctly set the sample rate and the bit depth. The problem is that when 6 channels are recorded with 24-bit depth the Emi is able to provide 2 16-bit output channels at 44.1 KHz or no output at 48 KHz. Running jack with no -C or -P options tries to record 6 channels and play back 2 channels at 24-bith which is impossible by the hardware. As a result I get a lot of noise and mix-ups in the audio when trying to record or play back something. So - I would need to be able to tell jack to open the capture ports at 24-bit and playback at 16-bit. Any ideas on how to do this? Could I possibly create aliases for the capture and playback with the desired options in my .aousndrc and use them with the Jack -C and -P switches? If yes - how? I heard that ecasound does use the card correctly so there should not be anything wrong with the driver. Below is what /proc/asound/card1/stream0 says. Thanks, -Jorma Emagic GmbH Emagic EMI 6|2 m at usb-00:03.1-3.1 : USB Audio Playback: Status: Stop Interface 1 Altset 1 Format: S16_LE Channels: 2 Endpoint: 10 OUT (ASYNC) Rates: 44100, 48000, 96000 Interface 1 Altset 2 Format: S24_3LE Channels: 2 Endpoint: 10 OUT (ASYNC) Rates: 44100, 48000, 96000 Capture: Status: Stop Interface 2 Altset 1 Format: S16_LE Channels: 6 Endpoint: 12 IN (ASYNC) Rates: 44100, 48000 Interface 2 Altset 2 Format: S24_3LE Channels: 6 Endpoint: 12 IN (ASYNC) Rates: 44100, 48000 Interface 2 Altset 3 Format: S16_LE Channels: 2 Endpoint: 12 IN (ASYNC) Rates: 44100, 48000, 96000 Interface 2 Altset 4 Format: S24_3LE Channels: 2 Endpoint: 12 IN (ASYNC) Rates: 44100, 48000, 96000 __ Sano ei kuukausimaksuille. Hanki Suomen ainoa aidosti kuukausimaksuton GSM-liittymä osoitteesta http://www.saunalahti.fi