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[WORKAROUND] 5.1/7.1 Analog Inputs Replaced By HDMI

Posted: Sun Aug 04, 2013 6:04 am
by GraysonPeddie
Workaround: I got myself a Marantz SR5008, which is the cheapest I can get with multi-channel inputs. Thank you, Marantz! I've had to go for monthly financing, which is unfortunate, but I'm very happy with my home theater receiver.)





(90 views and no help? Oh well. I'm getting me a Marantz SR5008 Home Theater Receiver since anything under $900 with HDMI 1.4a won't come with multi-channel inputs. It seems no one is interested in such a unique setup. :( )

To moderators: I'm unsure whether this thread should be placed in here or not so this forum section will be my best guess. The thread can be moved if it does not belong here.

Today's home theater receivers have done away with analog multi-channel inputs and my only choice is using an HDMI cable coming from my Radeon HD 7660D chip that can send out LPCM 7.1 output to a receiver. By doing so, I bypass my audio interface altogether, so I cannot use an analog input in my Echo Gina3G. I've had to kill off Cadence by process ID and jackdbus but I cannot open Cadence anymore and I will restart my computer soon.

Without Gina3G (2-in/6-out) involved, I once tried selecting HDMI audio in the output drop-down list and it worked since it's connected to my TV with 48kHz sampling rate. It outputs in two channels, which is expected.

With that in mind, does ALSA fully support HDMI multichannel output? If so, and if anyone are using proprietary nVidia or AMD graphics drivers, do you get 8 channels when connected to the 7.1 receiver? Or do you get 6 if you have a 5.1 receiver?

As for music creation, I only do MIDI work using a couple of samples and synths, so I'm not using analog in for recording external instruments. The only thing I have Audio Technical AT2020 (XLR) use for is video commentary and I do want to have 2 XLR connections when available just for flexibility. In that case, studio monitors aren't important to me since I'm not doing any professional recording and I can use my Sennheiser HD 280 Pro for that when plugged into a home theater receiver. Having the latest HDMI standards is nice if I want to upgrade to 4K TV and hoping that DPI can easily be adjusted with newer version of Ubuntu (14.04, perhaps?).

I want to provide sources about A/V receivers omitting analog multichannel inputs:

A/V Receiver With PC Multichannel Analog Inputs
new receivers leaving out 6/8 channel analog inputs

Update: I've had to delete .config/jack folder in order to start Cadence. I cannot choose Gina3g as input and HDMI audio as output. It will cause Cadence to freeze or not start at all. It's either Gina3g or HDMI audio but I will leave this off to a different thread.

Re: 5.1/7.1 Analog Inputs Replaced By HDMI for A/V Receivers

Posted: Sun Aug 04, 2013 5:06 pm
by GraysonPeddie
Ah, thanks falkTX. If I did not set the sample rate correctly (my TV only accepts 48kHz but my TV is only for testing on how JACK can be setup), either Cadence or JACK will lock up (probably Cadence). I used to set 96kHz for Echo Gina3G.

Re: 5.1/7.1 Analog Inputs Replaced By HDMI for A/V Receivers

Posted: Mon Aug 05, 2013 6:00 am
by GraysonPeddie
Can JACK do low latency over HDMI without getting xruns (96k at 512 samples)? I don't have an HDMI LPCM 7.1 capable receiver but I want to use it for music playback to see how I do when creating music.

I've used JACK for everything, from watching movies (Netflix/Amazon) to listening to music, play games, create music (using MIDI piano roll in MUSE Sequencer), and I mean, just about everything and it makes me want to throw out my Echo Gina3G (well, I'm not, since I have an Audio Technica AT2020 as stated above) really because new A/V receivers do not have multi-channel analog inputs. I have been using my audio interface for surround sound!

Someone needs to come up with new audio interfaces with mic preamps, HDMI output for video passthrough and sending audio to my home theater receiver, ADAT/SPDIF, and whatever analog inputs and outputs I might want for my Linux setup. Yeah, like that's going to happen. This does bear repeating but I don't plan to have studio monitors that are two separate speakers.

Way to go, Onkyo, Denon, Yamaha, etc...