eu telephone frequency range

[ONE LUV]

hello friends,

i already used the search function but couldn´t find anything related.

what is the typical telephone frequency range? i don´t need the range of typical handy speakers as i´m not producing another ring tone, i´m just producing a jingle for a customer who wants to use it for his telephone system. so when the customer calls the company he will hear the music and vo. i just don´t know the name for it in english but you guys might know now, what i´m looking for.

i want to cut the frequency range on the master of cubase to get the realest perfomance before loading it onto his telephone system. so were should i cut and is there anything else to look for? maybe you can safe me some hustle

i thought about 250-4000 working frequency?

thank you in advance

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[jahtao]

waves Q10 phone preset hi pass filter cuts very very very steeply at 400hz. and there's low pass at 2500k, mega steep. always sounded pretty phonetastic to me

[minister]

The frequency range is 300-3400Hz for Plain Old Telephone System. It is also compressed.

I would definitely run your audio through as best a simulation as you can. Even record it to your voice mail. Today's digital systems can add a lot of artifacting.......................

[neilwilkes]

The UAD Cambridge also has a very convincing Phone setting as well.

[esaias]

You could try compressing your jingles with GSM audio codec to see what happens, AFAIK 3G phones use GSM-AMR (WBR).

Although I am not sure are the GSM codecs freely downloadable.

check these codec names
GSM Vocoders

and here''s more infor about the GSM-AMR
GSM-AMR Adaptive Multi-Rate speech coder by Adaptive Digital

(these link were pretty much random googling but I hope they give some hints)


-Tomi

[ONE LUV]

thank you guys! i already used the q10 telephone preset and there is so much more cutted out..i can´t say for us telephone systems, but in germany the telephone quality isn´t as bad as shown via the q10 preset

thank you for the gsm and compression tip. i will work that out.

thank you all for your comments!

[postprosound]

One word.... Speakerphone

Originally Posted by ONE LUV

thank you guys! i already used the q10 telephone preset and there is so much more cutted out..i can´t say for us telephone systems, but in germany the telephone quality isn´t as bad as shown via the q10 preset

thank you for the gsm and compression tip. i will work that out.

thank you all for your comments!

[iluvatar]

Originally Posted by minister

The frequency range is 300-3400Hz for Plain Old Telephone System. It is also compressed.

I would definitely run your audio through as best a simulation as you can. Even record it to your voice mail. Today's digital systems can add a lot of artifacting.......................

I think he's writing a jingle to be used as on-hold music, not a sound design piece that's supposed to sound like a phone.

-Dan.

[esaias]

I'll try to fetch you a free GSM codec since IMO it would be your best bet
(drop me a PM if you don't hear back from me for couple days, or unless you've found one by yourself)

it would just show you what it does to the sound, of course it would be nice to hear what it sounds thru a phone's speaker but since you have no control over the devices(phones) which are used that it may not give you right perspective. It would best to try to get best sound with the codec and hope for the best. Of course if you have a phone that can play a WAV(/MP3) thru the earpiece, you can always record the GSM encoded file to a WAV(/MP3) and play that thru the phone to give you some perspective.

-Tomi

[minister]

Originally Posted by iluvatar

I think he's writing a jingle to be used as on-hold music, not a sound design piece that's supposed to sound like a phone.

-Dan.

That's right, Dan. I got that, which is why I suggested he try to simulate playback from a telephone to hear what his audio will sound like. Similar to checking a TV mix on a TV.

Speakerphone does an admirable job, but that's plunking down close to $500 USD.....worth it if you can afford it, but just to audition your final product.....

[Chaellus]

most phones are from hipass 500Hz-2.5Khz Lowpass