03-02-2021, 03:41 PM | #1 |
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Coding Equalizer / Sound Processing Functions
Hi everyone, I have recently changed out the standard BMW Hi-Fi speakers with the Bavsound stage 1 upgrade and also changed the subs to the Bavsound Ghost units. Overall I have to say the improvement in sound quality (clarity and depth) is fantastic. Pre-upgrade I had Bass and Treble both at around +8 now have treble -4 and bass +2.
However, it does highlight that some form of equalizer to enable a more detailed control of frequency bands would really make this upgrade the best it could be (and I dare say better than the HK option). With the issues around the HK option on current new builds I figure this post could be very timely. I have explored a heap of coding posts and have found some various posts that suggest there may be ways to achieve some improvements (see below). I wanted to reach out to see if anyone had any experience with any of these options please and/or any other ideas on how to improve/expand the control of the sound? Option 1 - (Using bimmercode) HU MGU HEADUNIT expert mode look for AUDIO-SYSTEM then change the parameters from alev2-Ram to alev4-Ram code to achieve a working Bowers and Wilkins settings and working equalizer (Note: I have read other posts that suggest only the two outside frequency bands on the equalizer actually adjust the sound so if this is correct it would mean you still only have bass and treble control) Option 2 - (Using Bimmercode) HU_MGU > Expert Mode > 3000 HMI > HIGH_END_AUDIO_MENUE. Change the value from whatever it is to volle_insz and code.Cycle the vehicle on/off after the coding is complete and you'll notice that Bang & Olufsen now sits at the top of the Tone menu. If you select this option, you'll have your choice of two DSPs: Studio and Expanded. Expanded does improve the sound even of the base Hi-Fi. Option 3 - (Using Bimmercode) - I dont think this one is relevant but not sure. To add HK equalizer to head unit HU_NBT_EVO > AUDIO_TUNER_TRAFFIC 3002 > AMPLIFIER_VARIANT = most HU_NBT_EVO > AUDIO_TUNER_TRAFFIC 3002 > AUDIO_SYSTEM = hk_surroundsound HU_NBT_EVO > AUDIO_TUNER_TRAFFIC 3002 > AUDIO_SYSTEM_VAR = variant1 [Default] HU_NBT_EVO > AUDIO_TUNER_TRAFFIC 3002 > EQ_VARIANT = variant5 HU_NBT_EVO > AUDIO_TUNER_TRAFFIC 3002 > MULTICHANNEL = nicht_aktiv [Default] HU_NBT_EVO > HMI 3000 > LOGIC7_SYMBOL = aktiv HU_NBT_EVO > SYSTEM_EINSTELLUNGEN 3004 > EXTERNER_MOST = aktiv |
03-03-2021, 03:40 AM | #2 | |
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This is great info. Do you have screenshots of your idrive to show what it looks like now? |
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03-03-2021, 07:27 AM | #3 |
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Great job on the analysis and details ! One question do you think coding option 2 on a HK system to use the B&W equalizer setting would make a noticeable improvement?
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03-05-2021, 07:40 PM | #4 |
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Curious to know as well if this improves the HK system.
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03-05-2021, 08:02 PM | #5 |
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I changed mine it doesn't show the b+w options on the tone setting screen. sound wise I am not sure the mid range seems a bit cleaner and the bass less booming but again without doing a true a/b test it hard to say for sure
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03-06-2021, 04:02 AM | #7 | |
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So I have the standard HIFI that it came with and struggled with just having treble and bass to play with. Does the settings make a proper change given that we are missing speakers to actually show a true cinema surround sound? Do you hear a difference with the bowers settings in there? |
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03-06-2021, 06:02 AM | #8 |
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Hi there.
Update: I did the coding How do I get the option to have dsp standard or expanded. Under which setting did you say you saw a change in the sound with the current setup you have? I have the match up 7bmw amp which is much better then the standard hifi amp it comes with. I'm looking for a surround sound feeling and was hoping these settings would have done the trick. |
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03-06-2021, 07:25 AM | #9 |
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You happy with it?
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03-06-2021, 10:03 AM | #11 |
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Just coded it with Option 1 and 2. Excellent. I noticed a nice improvement as well. Very good. Thanks.
Check out the On Stage setting. Listened to a favourite song on Sirius and my wife said never heard the birds before in the background!
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03-21-2021, 03:40 PM | #14 |
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i successfully coded using Options 1 & 2. the sound stage is much improved over stock HK. thank you!
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05-05-2021, 06:05 AM | #16 |
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I flipped both of the below, btw (in addition to AUDIO_SYSTEM) - appears to be one additional item vs. your notes; wondering if TC was the volume knob UI control? Also, looks like this adds in the lighting menu for the speakers, albeit disabled without the hardware.
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05-24-2021, 06:39 PM | #17 |
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Hi guys. I am very new to this. Ie pick up my X5 next Monday. I've ordered the dongle, I presume it's simply a case of tick the boxes of things you want active. Is that correct?
And I am keen to put the equaliser into it as I have upgraded my HI Fi speakers also |
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05-29-2021, 10:19 PM | #20 |
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05-31-2021, 05:34 AM | #22 | |
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